diff --git a/core/fpdfapi/cmaps/CNS1/Adobe-CNS1-UCS2_5.cpp b/core/fpdfapi/cmaps/CNS1/Adobe-CNS1-UCS2_5.cpp
index c904239..ebfc894 100644
--- a/core/fpdfapi/cmaps/CNS1/Adobe-CNS1-UCS2_5.cpp
+++ b/core/fpdfapi/cmaps/CNS1/Adobe-CNS1-UCS2_5.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/CNS1/cmaps_cns1.h"
 
-const uint16_t g_FXCMAP_CNS1CID2Unicode_5[19088] = {
+const uint16_t kFXCMAP_CNS1CID2Unicode_5[19088] = {
     0xFFFD, 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027,
     0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F, 0x0030,
     0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, 0x0038, 0x0039,
diff --git a/core/fpdfapi/cmaps/CNS1/B5pc-H_0.cpp b/core/fpdfapi/cmaps/CNS1/B5pc-H_0.cpp
index 0c96065..715cee4 100644
--- a/core/fpdfapi/cmaps/CNS1/B5pc-H_0.cpp
+++ b/core/fpdfapi/cmaps/CNS1/B5pc-H_0.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/CNS1/cmaps_cns1.h"
 
-const uint16_t g_FXCMAP_B5pc_H_0[247 * 3] = {
+const uint16_t kFXCMAP_B5pc_H_0[247 * 3] = {
     0x0020, 0x007E, 0x0001, 0x0080, 0x0080, 0x003D, 0x00FD, 0x00FF, 0x0060,
     0xA140, 0xA158, 0x0063, 0xA159, 0xA15C, 0x35AF, 0xA15D, 0xA17E, 0x0080,
     0xA1A1, 0xA1F5, 0x00A2, 0xA1F6, 0xA1F6, 0x00F8, 0xA1F7, 0xA1F7, 0x00F7,
diff --git a/core/fpdfapi/cmaps/CNS1/B5pc-V_0.cpp b/core/fpdfapi/cmaps/CNS1/B5pc-V_0.cpp
index 88768d6..07b3a20 100644
--- a/core/fpdfapi/cmaps/CNS1/B5pc-V_0.cpp
+++ b/core/fpdfapi/cmaps/CNS1/B5pc-V_0.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/CNS1/cmaps_cns1.h"
 
-const uint16_t g_FXCMAP_B5pc_V_0[12 * 3] = {
+const uint16_t kFXCMAP_B5pc_V_0[12 * 3] = {
     0xA14B, 0xA14B, 0x354E, 0xA15A, 0xA15A, 0x35AF, 0xA15C, 0xA15C, 0x35B1,
     0xA15D, 0xA15E, 0x0082, 0xA161, 0xA162, 0x0086, 0xA165, 0xA166, 0x008A,
     0xA169, 0xA16A, 0x008E, 0xA16D, 0xA16E, 0x0092, 0xA171, 0xA172, 0x0096,
diff --git a/core/fpdfapi/cmaps/CNS1/CNS-EUC-H_0.cpp b/core/fpdfapi/cmaps/CNS1/CNS-EUC-H_0.cpp
index 9d0cee8..4c6bec7 100644
--- a/core/fpdfapi/cmaps/CNS1/CNS-EUC-H_0.cpp
+++ b/core/fpdfapi/cmaps/CNS1/CNS-EUC-H_0.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/CNS1/cmaps_cns1.h"
 
-const uint16_t g_FXCMAP_CNS_EUC_H_0[157 * 3] = {
+const uint16_t kFXCMAP_CNS_EUC_H_0[157 * 3] = {
     0x0020, 0x007E, 0x3550, 0xA1A1, 0xA1FE, 0x0063, 0xA2A1, 0xA2FE, 0x00C1,
     0xA3A1, 0xA3CE, 0x011F, 0xA4A1, 0xA4FE, 0x014D, 0xA5A1, 0xA5EC, 0x01AB,
     0xA5EE, 0xA5F0, 0x01F7, 0xA6A1, 0xA6BE, 0x01FA, 0xA7A1, 0xA7A1, 0x0253,
@@ -62,7 +62,7 @@
     0xFDA1, 0xFDCB, 0x1741,
 };
 
-const FXCMAP_DWordCIDMap g_FXCMAP_CNS_EUC_H_0_DWord[238] = {
+const FXCMAP_DWordCIDMap kFXCMAP_CNS_EUC_H_0_DWord[238] = {
     {0x8EA1, 0xA1A1, 0xA1FE, 0x0063}, {0x8EA1, 0xA2A1, 0xA2FE, 0x00C1},
     {0x8EA1, 0xA3A1, 0xA3CE, 0x011F}, {0x8EA1, 0xA4A1, 0xA4FE, 0x014D},
     {0x8EA1, 0xA5A1, 0xA5EC, 0x01AB}, {0x8EA1, 0xA5EE, 0xA5F0, 0x01F7},
diff --git a/core/fpdfapi/cmaps/CNS1/CNS-EUC-V_0.cpp b/core/fpdfapi/cmaps/CNS1/CNS-EUC-V_0.cpp
index 1698106..4691864 100644
--- a/core/fpdfapi/cmaps/CNS1/CNS-EUC-V_0.cpp
+++ b/core/fpdfapi/cmaps/CNS1/CNS-EUC-V_0.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/CNS1/cmaps_cns1.h"
 
-const uint16_t g_FXCMAP_CNS_EUC_V_0[180 * 3] = {
+const uint16_t kFXCMAP_CNS_EUC_V_0[180 * 3] = {
     0x0020, 0x007E, 0x3550, 0xA1A1, 0xA1AB, 0x0063, 0xA1AC, 0xA1AC, 0x354E,
     0xA1AD, 0xA1BA, 0x006F, 0xA1BB, 0xA1BB, 0x007C, 0xA1BC, 0xA1BC, 0x007E,
     0xA1BD, 0xA1BD, 0x007E, 0xA1BE, 0xA1BF, 0x0082, 0xA1C0, 0xA1C1, 0x0082,
@@ -69,7 +69,7 @@
     0xFBA1, 0xFBFE, 0x1685, 0xFCA1, 0xFCFE, 0x16E3, 0xFDA1, 0xFDCB, 0x1741,
 };
 
-const FXCMAP_DWordCIDMap g_FXCMAP_CNS_EUC_V_0_DWord[261] = {
+const FXCMAP_DWordCIDMap kFXCMAP_CNS_EUC_V_0_DWord[261] = {
     {0x8EA1, 0xA1A1, 0xA1AB, 0x0063}, {0x8EA1, 0xA1AC, 0xA1AC, 0x354E},
     {0x8EA1, 0xA1AD, 0xA1BA, 0x006F}, {0x8EA1, 0xA1BB, 0xA1BB, 0x007C},
     {0x8EA1, 0xA1BC, 0xA1BC, 0x007E}, {0x8EA1, 0xA1BD, 0xA1BD, 0x007E},
diff --git a/core/fpdfapi/cmaps/CNS1/ETen-B5-H_0.cpp b/core/fpdfapi/cmaps/CNS1/ETen-B5-H_0.cpp
index 3138ae9..e790b7e 100644
--- a/core/fpdfapi/cmaps/CNS1/ETen-B5-H_0.cpp
+++ b/core/fpdfapi/cmaps/CNS1/ETen-B5-H_0.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/CNS1/cmaps_cns1.h"
 
-const uint16_t g_FXCMAP_ETen_B5_H_0[254 * 3] = {
+const uint16_t kFXCMAP_ETen_B5_H_0[254 * 3] = {
     0x0020, 0x007E, 0x3550, 0xA140, 0xA158, 0x0063, 0xA159, 0xA15C, 0x35AF,
     0xA15D, 0xA17E, 0x0080, 0xA1A1, 0xA1F5, 0x00A2, 0xA1F6, 0xA1F6, 0x00F8,
     0xA1F7, 0xA1F7, 0x00F7, 0xA1F8, 0xA1FE, 0x00F9, 0xA240, 0xA27E, 0x0100,
diff --git a/core/fpdfapi/cmaps/CNS1/ETen-B5-V_0.cpp b/core/fpdfapi/cmaps/CNS1/ETen-B5-V_0.cpp
index 622f2ff..61f9280 100644
--- a/core/fpdfapi/cmaps/CNS1/ETen-B5-V_0.cpp
+++ b/core/fpdfapi/cmaps/CNS1/ETen-B5-V_0.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/CNS1/cmaps_cns1.h"
 
-const uint16_t g_FXCMAP_ETen_B5_V_0[13 * 3] = {
+const uint16_t kFXCMAP_ETen_B5_V_0[13 * 3] = {
     0xA14B, 0xA14B, 0x354E, 0xA15A, 0xA15A, 0x35AF, 0xA15C, 0xA15C,
     0x35B1, 0xA15D, 0xA15E, 0x0082, 0xA161, 0xA162, 0x0086, 0xA165,
     0xA166, 0x008A, 0xA169, 0xA16A, 0x008E, 0xA16D, 0xA16E, 0x0092,
diff --git a/core/fpdfapi/cmaps/CNS1/ETenms-B5-H_0.cpp b/core/fpdfapi/cmaps/CNS1/ETenms-B5-H_0.cpp
index 3cc5573..f970f18 100644
--- a/core/fpdfapi/cmaps/CNS1/ETenms-B5-H_0.cpp
+++ b/core/fpdfapi/cmaps/CNS1/ETenms-B5-H_0.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/CNS1/cmaps_cns1.h"
 
-const uint16_t g_FXCMAP_ETenms_B5_H_0[1 * 3] = {
+const uint16_t kFXCMAP_ETenms_B5_H_0[1 * 3] = {
     0x0020,
     0x007E,
     0x0001,
diff --git a/core/fpdfapi/cmaps/CNS1/ETenms-B5-V_0.cpp b/core/fpdfapi/cmaps/CNS1/ETenms-B5-V_0.cpp
index de92249..6b33b03 100644
--- a/core/fpdfapi/cmaps/CNS1/ETenms-B5-V_0.cpp
+++ b/core/fpdfapi/cmaps/CNS1/ETenms-B5-V_0.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/CNS1/cmaps_cns1.h"
 
-const uint16_t g_FXCMAP_ETenms_B5_V_0[18 * 3] = {
+const uint16_t kFXCMAP_ETenms_B5_V_0[18 * 3] = {
     0xA14B, 0xA14B, 0x354E, 0xA14C, 0xA14C, 0x006D, 0xA156, 0xA156, 0x0138,
     0xA158, 0xA158, 0x007A, 0xA15A, 0xA15A, 0x35AF, 0xA15C, 0xA15C, 0x35B1,
     0xA15D, 0xA15E, 0x0082, 0xA161, 0xA162, 0x0086, 0xA165, 0xA166, 0x008A,
diff --git a/core/fpdfapi/cmaps/CNS1/HKscs-B5-H_5.cpp b/core/fpdfapi/cmaps/CNS1/HKscs-B5-H_5.cpp
index 47f7d6a..cd3e0e9 100644
--- a/core/fpdfapi/cmaps/CNS1/HKscs-B5-H_5.cpp
+++ b/core/fpdfapi/cmaps/CNS1/HKscs-B5-H_5.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/CNS1/cmaps_cns1.h"
 
-const uint16_t g_FXCMAP_HKscs_B5_H_5[1210 * 3] = {
+const uint16_t kFXCMAP_HKscs_B5_H_5[1210 * 3] = {
     0x0020, 0x007E, 0x0001, 0x8740, 0x8765, 0x4A15, 0x8767, 0x8779, 0x4A3B,
     0x8840, 0x8855, 0x44C9, 0x8856, 0x887E, 0x4961, 0x88A1, 0x88A8, 0x498A,
     0x88A9, 0x88AA, 0x499C, 0x8940, 0x8941, 0x4534, 0x8943, 0x8943, 0x4536,
diff --git a/core/fpdfapi/cmaps/CNS1/HKscs-B5-V_5.cpp b/core/fpdfapi/cmaps/CNS1/HKscs-B5-V_5.cpp
index a833497..6585604 100644
--- a/core/fpdfapi/cmaps/CNS1/HKscs-B5-V_5.cpp
+++ b/core/fpdfapi/cmaps/CNS1/HKscs-B5-V_5.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/CNS1/cmaps_cns1.h"
 
-const uint16_t g_FXCMAP_HKscs_B5_V_5[13 * 3] = {
+const uint16_t kFXCMAP_HKscs_B5_V_5[13 * 3] = {
     0xA14B, 0xA14B, 0x354E, 0xA15A, 0xA15A, 0x35AF, 0xA15C, 0xA15C,
     0x35B1, 0xA15D, 0xA15E, 0x0082, 0xA161, 0xA162, 0x0086, 0xA165,
     0xA166, 0x008A, 0xA169, 0xA16A, 0x008E, 0xA16D, 0xA16E, 0x0092,
diff --git a/core/fpdfapi/cmaps/CNS1/UniCNS-UCS2-H_3.cpp b/core/fpdfapi/cmaps/CNS1/UniCNS-UCS2-H_3.cpp
index bfe6a34..0d4d487 100644
--- a/core/fpdfapi/cmaps/CNS1/UniCNS-UCS2-H_3.cpp
+++ b/core/fpdfapi/cmaps/CNS1/UniCNS-UCS2-H_3.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/CNS1/cmaps_cns1.h"
 
-const uint16_t g_FXCMAP_UniCNS_UCS2_H_3[16418 * 3] = {
+const uint16_t kFXCMAP_UniCNS_UCS2_H_3[16418 * 3] = {
     0x0020, 0x007E, 0x0001, 0x00A2, 0x00A3, 0x0106, 0x00A5, 0x00A5, 0x0104,
     0x00A7, 0x00A7, 0x00B2, 0x00A8, 0x00A8, 0x35B3, 0x00AC, 0x00AC, 0x36E1,
     0x00B0, 0x00B0, 0x0118, 0x00B1, 0x00B1, 0x00D4, 0x00B7, 0x00B7, 0x0073,
diff --git a/core/fpdfapi/cmaps/CNS1/UniCNS-UCS2-V_3.cpp b/core/fpdfapi/cmaps/CNS1/UniCNS-UCS2-V_3.cpp
index dfa7b87..fb6317c 100644
--- a/core/fpdfapi/cmaps/CNS1/UniCNS-UCS2-V_3.cpp
+++ b/core/fpdfapi/cmaps/CNS1/UniCNS-UCS2-V_3.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/CNS1/cmaps_cns1.h"
 
-const uint16_t g_FXCMAP_UniCNS_UCS2_V_3[13 * 3] = {
+const uint16_t kFXCMAP_UniCNS_UCS2_V_3[13 * 3] = {
     0x2013, 0x2013, 0x0078, 0x2014, 0x2014, 0x007A, 0x2025, 0x2025,
     0x006D, 0x3008, 0x3009, 0x0096, 0x300A, 0x300B, 0x0092, 0x300C,
     0x300D, 0x009A, 0x300E, 0x300F, 0x009E, 0x3010, 0x3011, 0x008E,
diff --git a/core/fpdfapi/cmaps/CNS1/UniCNS-UTF16-H_0.cpp b/core/fpdfapi/cmaps/CNS1/UniCNS-UTF16-H_0.cpp
index a033c13..652a011 100644
--- a/core/fpdfapi/cmaps/CNS1/UniCNS-UTF16-H_0.cpp
+++ b/core/fpdfapi/cmaps/CNS1/UniCNS-UTF16-H_0.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/CNS1/cmaps_cns1.h"
 
-const uint16_t g_FXCMAP_UniCNS_UTF16_H_0[14557 * 2] = {
+const uint16_t kFXCMAP_UniCNS_UTF16_H_0[14557 * 2] = {
     0x0020, 0x0001, 0x0021, 0x0002, 0x0022, 0x0003, 0x0023, 0x0004, 0x0024,
     0x0005, 0x0025, 0x0006, 0x0026, 0x0007, 0x0027, 0x0008, 0x0028, 0x0009,
     0x0029, 0x000A, 0x002A, 0x000B, 0x002B, 0x000C, 0x002C, 0x000D, 0x002D,
diff --git a/core/fpdfapi/cmaps/CNS1/cmaps_cns1.cpp b/core/fpdfapi/cmaps/CNS1/cmaps_cns1.cpp
index 00f9571..65abefb 100644
--- a/core/fpdfapi/cmaps/CNS1/cmaps_cns1.cpp
+++ b/core/fpdfapi/cmaps/CNS1/cmaps_cns1.cpp
@@ -8,31 +8,31 @@
 
 #include "third_party/base/cxx17_backports.h"
 
-const FXCMAP_CMap g_FXCMAP_CNS1_cmaps[] = {
-    {"B5pc-H", g_FXCMAP_B5pc_H_0, nullptr, 247, 0, FXCMAP_CMap::Range, 0},
-    {"B5pc-V", g_FXCMAP_B5pc_V_0, nullptr, 12, 0, FXCMAP_CMap::Range, -1},
-    {"HKscs-B5-H", g_FXCMAP_HKscs_B5_H_5, nullptr, 1210, 0, FXCMAP_CMap::Range,
+const FXCMAP_CMap kFXCMAP_CNS1_cmaps[] = {
+    {"B5pc-H", kFXCMAP_B5pc_H_0, nullptr, 247, 0, FXCMAP_CMap::Range, 0},
+    {"B5pc-V", kFXCMAP_B5pc_V_0, nullptr, 12, 0, FXCMAP_CMap::Range, -1},
+    {"HKscs-B5-H", kFXCMAP_HKscs_B5_H_5, nullptr, 1210, 0, FXCMAP_CMap::Range,
      0},
-    {"HKscs-B5-V", g_FXCMAP_HKscs_B5_V_5, nullptr, 13, 0, FXCMAP_CMap::Range,
+    {"HKscs-B5-V", kFXCMAP_HKscs_B5_V_5, nullptr, 13, 0, FXCMAP_CMap::Range,
      -1},
-    {"ETen-B5-H", g_FXCMAP_ETen_B5_H_0, nullptr, 254, 0, FXCMAP_CMap::Range, 0},
-    {"ETen-B5-V", g_FXCMAP_ETen_B5_V_0, nullptr, 13, 0, FXCMAP_CMap::Range, -1},
-    {"ETenms-B5-H", g_FXCMAP_ETenms_B5_H_0, nullptr, 1, 0, FXCMAP_CMap::Range,
+    {"ETen-B5-H", kFXCMAP_ETen_B5_H_0, nullptr, 254, 0, FXCMAP_CMap::Range, 0},
+    {"ETen-B5-V", kFXCMAP_ETen_B5_V_0, nullptr, 13, 0, FXCMAP_CMap::Range, -1},
+    {"ETenms-B5-H", kFXCMAP_ETenms_B5_H_0, nullptr, 1, 0, FXCMAP_CMap::Range,
      -2},
-    {"ETenms-B5-V", g_FXCMAP_ETenms_B5_V_0, nullptr, 18, 0, FXCMAP_CMap::Range,
+    {"ETenms-B5-V", kFXCMAP_ETenms_B5_V_0, nullptr, 18, 0, FXCMAP_CMap::Range,
      -1},
-    {"CNS-EUC-H", g_FXCMAP_CNS_EUC_H_0, g_FXCMAP_CNS_EUC_H_0_DWord, 157, 238,
+    {"CNS-EUC-H", kFXCMAP_CNS_EUC_H_0, kFXCMAP_CNS_EUC_H_0_DWord, 157, 238,
      FXCMAP_CMap::Range, 0},
-    {"CNS-EUC-V", g_FXCMAP_CNS_EUC_V_0, g_FXCMAP_CNS_EUC_V_0_DWord, 180, 261,
+    {"CNS-EUC-V", kFXCMAP_CNS_EUC_V_0, kFXCMAP_CNS_EUC_V_0_DWord, 180, 261,
      FXCMAP_CMap::Range, 0},
-    {"UniCNS-UCS2-H", g_FXCMAP_UniCNS_UCS2_H_3, nullptr, 16418, 0,
+    {"UniCNS-UCS2-H", kFXCMAP_UniCNS_UCS2_H_3, nullptr, 16418, 0,
      FXCMAP_CMap::Range, 0},
-    {"UniCNS-UCS2-V", g_FXCMAP_UniCNS_UCS2_V_3, nullptr, 13, 0,
+    {"UniCNS-UCS2-V", kFXCMAP_UniCNS_UCS2_V_3, nullptr, 13, 0,
      FXCMAP_CMap::Range, -1},
-    {"UniCNS-UTF16-H", g_FXCMAP_UniCNS_UTF16_H_0, nullptr, 14557, 0,
+    {"UniCNS-UTF16-H", kFXCMAP_UniCNS_UTF16_H_0, nullptr, 14557, 0,
      FXCMAP_CMap::Single, 0},
-    {"UniCNS-UTF16-V", g_FXCMAP_UniCNS_UCS2_V_3, nullptr, 13, 0,
+    {"UniCNS-UTF16-V", kFXCMAP_UniCNS_UCS2_V_3, nullptr, 13, 0,
      FXCMAP_CMap::Range, -1},
 };
 
-const size_t g_FXCMAP_CNS1_cmaps_size = pdfium::size(g_FXCMAP_CNS1_cmaps);
+const size_t kFXCMAP_CNS1_cmaps_size = pdfium::size(kFXCMAP_CNS1_cmaps);
diff --git a/core/fpdfapi/cmaps/CNS1/cmaps_cns1.h b/core/fpdfapi/cmaps/CNS1/cmaps_cns1.h
index 0660c76..aed55eb 100644
--- a/core/fpdfapi/cmaps/CNS1/cmaps_cns1.h
+++ b/core/fpdfapi/cmaps/CNS1/cmaps_cns1.h
@@ -11,23 +11,23 @@
 
 #include "core/fpdfapi/cmaps/fpdf_cmaps.h"
 
-extern const uint16_t g_FXCMAP_B5pc_H_0[];
-extern const uint16_t g_FXCMAP_B5pc_V_0[];
-extern const uint16_t g_FXCMAP_HKscs_B5_H_5[];
-extern const uint16_t g_FXCMAP_HKscs_B5_V_5[];
-extern const uint16_t g_FXCMAP_ETen_B5_H_0[];
-extern const uint16_t g_FXCMAP_ETen_B5_V_0[];
-extern const uint16_t g_FXCMAP_ETenms_B5_H_0[];
-extern const uint16_t g_FXCMAP_ETenms_B5_V_0[];
-extern const uint16_t g_FXCMAP_CNS_EUC_H_0[];
-extern const FXCMAP_DWordCIDMap g_FXCMAP_CNS_EUC_H_0_DWord[];
-extern const uint16_t g_FXCMAP_CNS_EUC_V_0[];
-extern const FXCMAP_DWordCIDMap g_FXCMAP_CNS_EUC_V_0_DWord[];
-extern const uint16_t g_FXCMAP_UniCNS_UCS2_H_3[];
-extern const uint16_t g_FXCMAP_UniCNS_UCS2_V_3[];
-extern const uint16_t g_FXCMAP_UniCNS_UTF16_H_0[];
-extern const uint16_t g_FXCMAP_CNS1CID2Unicode_5[19088];
-extern const FXCMAP_CMap g_FXCMAP_CNS1_cmaps[];
-extern const size_t g_FXCMAP_CNS1_cmaps_size;
+extern const uint16_t kFXCMAP_B5pc_H_0[];
+extern const uint16_t kFXCMAP_B5pc_V_0[];
+extern const uint16_t kFXCMAP_HKscs_B5_H_5[];
+extern const uint16_t kFXCMAP_HKscs_B5_V_5[];
+extern const uint16_t kFXCMAP_ETen_B5_H_0[];
+extern const uint16_t kFXCMAP_ETen_B5_V_0[];
+extern const uint16_t kFXCMAP_ETenms_B5_H_0[];
+extern const uint16_t kFXCMAP_ETenms_B5_V_0[];
+extern const uint16_t kFXCMAP_CNS_EUC_H_0[];
+extern const FXCMAP_DWordCIDMap kFXCMAP_CNS_EUC_H_0_DWord[];
+extern const uint16_t kFXCMAP_CNS_EUC_V_0[];
+extern const FXCMAP_DWordCIDMap kFXCMAP_CNS_EUC_V_0_DWord[];
+extern const uint16_t kFXCMAP_UniCNS_UCS2_H_3[];
+extern const uint16_t kFXCMAP_UniCNS_UCS2_V_3[];
+extern const uint16_t kFXCMAP_UniCNS_UTF16_H_0[];
+extern const uint16_t kFXCMAP_CNS1CID2Unicode_5[19088];
+extern const FXCMAP_CMap kFXCMAP_CNS1_cmaps[];
+extern const size_t kFXCMAP_CNS1_cmaps_size;
 
 #endif  // CORE_FPDFAPI_CMAPS_CNS1_CMAPS_CNS1_H_
diff --git a/core/fpdfapi/cmaps/GB1/Adobe-GB1-UCS2_5.cpp b/core/fpdfapi/cmaps/GB1/Adobe-GB1-UCS2_5.cpp
index 5a5ae04..09e1389 100644
--- a/core/fpdfapi/cmaps/GB1/Adobe-GB1-UCS2_5.cpp
+++ b/core/fpdfapi/cmaps/GB1/Adobe-GB1-UCS2_5.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/GB1/cmaps_gb1.h"
 
-const uint16_t g_FXCMAP_GB1CID2Unicode_5[30284] = {
+const uint16_t kFXCMAP_GB1CID2Unicode_5[30284] = {
     0xFFFD, 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027,
     0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F, 0x0030,
     0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, 0x0038, 0x0039,
diff --git a/core/fpdfapi/cmaps/GB1/GB-EUC-H_0.cpp b/core/fpdfapi/cmaps/GB1/GB-EUC-H_0.cpp
index 9bbfe32..749b47b 100644
--- a/core/fpdfapi/cmaps/GB1/GB-EUC-H_0.cpp
+++ b/core/fpdfapi/cmaps/GB1/GB-EUC-H_0.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/GB1/cmaps_gb1.h"
 
-const uint16_t g_FXCMAP_GB_EUC_H_0[90 * 3] = {
+const uint16_t kFXCMAP_GB_EUC_H_0[90 * 3] = {
     0x0020, 0x0020, 0x1E24, 0x0021, 0x007E, 0x032E, 0xA1A1, 0xA1FE, 0x0060,
     0xA2B1, 0xA2E2, 0x00BE, 0xA2E5, 0xA2EE, 0x00F0, 0xA2F1, 0xA2FC, 0x00FA,
     0xA3A1, 0xA3FE, 0x0106, 0xA4A1, 0xA4F3, 0x0164, 0xA5A1, 0xA5F6, 0x01B7,
diff --git a/core/fpdfapi/cmaps/GB1/GB-EUC-V_0.cpp b/core/fpdfapi/cmaps/GB1/GB-EUC-V_0.cpp
index 19bd418..388fd55 100644
--- a/core/fpdfapi/cmaps/GB1/GB-EUC-V_0.cpp
+++ b/core/fpdfapi/cmaps/GB1/GB-EUC-V_0.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/GB1/cmaps_gb1.h"
 
-const uint16_t g_FXCMAP_GB_EUC_V_0[20 * 3] = {
+const uint16_t kFXCMAP_GB_EUC_V_0[20 * 3] = {
     0xA1A2, 0xA1A2, 0x023F, 0xA1A3, 0xA1A3, 0x023E, 0xA1AA, 0xA1AA, 0x0256,
     0xA1AB, 0xA1AC, 0x1E18, 0xA1AD, 0xA1AD, 0x0257, 0xA1B2, 0xA1BF, 0x0246,
     0xA1FE, 0xA1FE, 0x1E1A, 0xA3A1, 0xA3A1, 0x0242, 0xA3A8, 0xA3A9, 0x0244,
diff --git a/core/fpdfapi/cmaps/GB1/GBK-EUC-H_2.cpp b/core/fpdfapi/cmaps/GB1/GBK-EUC-H_2.cpp
index 617f020..cde6713 100644
--- a/core/fpdfapi/cmaps/GB1/GBK-EUC-H_2.cpp
+++ b/core/fpdfapi/cmaps/GB1/GBK-EUC-H_2.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/GB1/cmaps_gb1.h"
 
-const uint16_t g_FXCMAP_GBK_EUC_H_2[4071 * 3] = {
+const uint16_t kFXCMAP_GBK_EUC_H_2[4071 * 3] = {
     0x0020, 0x0020, 0x1E24, 0x0021, 0x007E, 0x032E, 0x8140, 0x8178, 0x2758,
     0x8179, 0x8179, 0x2059, 0x817A, 0x817E, 0x2791, 0x8180, 0x8185, 0x2796,
     0x8186, 0x8186, 0x21F1, 0x8187, 0x81EC, 0x279C, 0x81ED, 0x81ED, 0x1FF2,
diff --git a/core/fpdfapi/cmaps/GB1/GBK-EUC-V_2.cpp b/core/fpdfapi/cmaps/GB1/GBK-EUC-V_2.cpp
index 87e53a7..fb98e17 100644
--- a/core/fpdfapi/cmaps/GB1/GBK-EUC-V_2.cpp
+++ b/core/fpdfapi/cmaps/GB1/GBK-EUC-V_2.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/GB1/cmaps_gb1.h"
 
-const uint16_t g_FXCMAP_GBK_EUC_V_2[20 * 3] = {
+const uint16_t kFXCMAP_GBK_EUC_V_2[20 * 3] = {
     0xA1A2, 0xA1A2, 0x023F, 0xA1A3, 0xA1A3, 0x023E, 0xA1AA, 0xA1AA, 0x0256,
     0xA1AB, 0xA1AC, 0x1E18, 0xA1AD, 0xA1AD, 0x0257, 0xA1B2, 0xA1BF, 0x0246,
     0xA1FE, 0xA1FE, 0x1E1A, 0xA3A1, 0xA3A1, 0x0242, 0xA3A8, 0xA3A9, 0x0244,
diff --git a/core/fpdfapi/cmaps/GB1/GBK2K-H_5.cpp b/core/fpdfapi/cmaps/GB1/GBK2K-H_5.cpp
index 7d7b48a..8066c5c 100644
--- a/core/fpdfapi/cmaps/GB1/GBK2K-H_5.cpp
+++ b/core/fpdfapi/cmaps/GB1/GBK2K-H_5.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/GB1/cmaps_gb1.h"
 
-const uint16_t g_FXCMAP_GBK2K_H_5[4071 * 3] = {
+const uint16_t kFXCMAP_GBK2K_H_5[4071 * 3] = {
     0x0020, 0x007E, 0x0001, 0x8140, 0x8178, 0x2758, 0x8179, 0x8179, 0x2059,
     0x817A, 0x817E, 0x2791, 0x8180, 0x8185, 0x2796, 0x8186, 0x8186, 0x21F1,
     0x8187, 0x81EC, 0x279C, 0x81ED, 0x81ED, 0x1FF2, 0x81EE, 0x81F5, 0x2802,
@@ -1366,7 +1366,7 @@
     0xFE40, 0xFE40, 0x1259, 0xFE41, 0xFE7E, 0x5610, 0xFE80, 0xFEA0, 0x564E,
 };
 
-const FXCMAP_DWordCIDMap g_FXCMAP_GBK2K_H_5_DWord[1017] = {
+const FXCMAP_DWordCIDMap kFXCMAP_GBK2K_H_5_DWord[1017] = {
     {0x8130, 0x8436, 0x8436, 0x5752}, {0x8138, 0xFD38, 0xFD39, 0x579C},
     {0x8138, 0xFE30, 0xFE39, 0x579E}, {0x8139, 0x8130, 0x8137, 0x57A8},
     {0x8139, 0x8139, 0x8139, 0x57B0}, {0x8139, 0x8230, 0x8239, 0x57B1},
diff --git a/core/fpdfapi/cmaps/GB1/GBK2K-V_5.cpp b/core/fpdfapi/cmaps/GB1/GBK2K-V_5.cpp
index 8efedd0..a8e7a9f 100644
--- a/core/fpdfapi/cmaps/GB1/GBK2K-V_5.cpp
+++ b/core/fpdfapi/cmaps/GB1/GBK2K-V_5.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/GB1/cmaps_gb1.h"
 
-const uint16_t g_FXCMAP_GBK2K_V_5[41 * 3] = {
+const uint16_t kFXCMAP_GBK2K_V_5[41 * 3] = {
     0xA1A2, 0xA1A2, 0x023F, 0xA1A3, 0xA1A3, 0x023E, 0xA1AA, 0xA1AA, 0x0256,
     0xA1AB, 0xA1AC, 0x1E18, 0xA1AD, 0xA1AD, 0x0257, 0xA1B2, 0xA1BF, 0x0246,
     0xA1FE, 0xA1FE, 0x1E1A, 0xA3A1, 0xA3A1, 0x0242, 0xA3A8, 0xA3A9, 0x0244,
diff --git a/core/fpdfapi/cmaps/GB1/GBKp-EUC-H_2.cpp b/core/fpdfapi/cmaps/GB1/GBKp-EUC-H_2.cpp
index 3145980..90981b7 100644
--- a/core/fpdfapi/cmaps/GB1/GBKp-EUC-H_2.cpp
+++ b/core/fpdfapi/cmaps/GB1/GBKp-EUC-H_2.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/GB1/cmaps_gb1.h"
 
-const uint16_t g_FXCMAP_GBKp_EUC_H_2[4070 * 3] = {
+const uint16_t kFXCMAP_GBKp_EUC_H_2[4070 * 3] = {
     0x0020, 0x007E, 0x0001, 0x8140, 0x8178, 0x2758, 0x8179, 0x8179, 0x2059,
     0x817A, 0x817E, 0x2791, 0x8180, 0x8185, 0x2796, 0x8186, 0x8186, 0x21F1,
     0x8187, 0x81EC, 0x279C, 0x81ED, 0x81ED, 0x1FF2, 0x81EE, 0x81F5, 0x2802,
diff --git a/core/fpdfapi/cmaps/GB1/GBKp-EUC-V_2.cpp b/core/fpdfapi/cmaps/GB1/GBKp-EUC-V_2.cpp
index 014ae70..4ae5788 100644
--- a/core/fpdfapi/cmaps/GB1/GBKp-EUC-V_2.cpp
+++ b/core/fpdfapi/cmaps/GB1/GBKp-EUC-V_2.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/GB1/cmaps_gb1.h"
 
-const uint16_t g_FXCMAP_GBKp_EUC_V_2[20 * 3] = {
+const uint16_t kFXCMAP_GBKp_EUC_V_2[20 * 3] = {
     0xA1A2, 0xA1A2, 0x023F, 0xA1A3, 0xA1A3, 0x023E, 0xA1AA, 0xA1AA, 0x0256,
     0xA1AB, 0xA1AC, 0x1E18, 0xA1AD, 0xA1AD, 0x0257, 0xA1B2, 0xA1BF, 0x0246,
     0xA1FE, 0xA1FE, 0x1E1A, 0xA3A1, 0xA3A1, 0x0242, 0xA3A8, 0xA3A9, 0x0244,
diff --git a/core/fpdfapi/cmaps/GB1/GBpc-EUC-H_0.cpp b/core/fpdfapi/cmaps/GB1/GBpc-EUC-H_0.cpp
index ff437d7..9a707a4 100644
--- a/core/fpdfapi/cmaps/GB1/GBpc-EUC-H_0.cpp
+++ b/core/fpdfapi/cmaps/GB1/GBpc-EUC-H_0.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/GB1/cmaps_gb1.h"
 
-const uint16_t g_FXCMAP_GBpc_EUC_H_0[91 * 3] = {
+const uint16_t kFXCMAP_GBpc_EUC_H_0[91 * 3] = {
     0x0020, 0x007E, 0x0001, 0x0080, 0x0080, 0x1E20, 0x00FD, 0x00FF, 0x1E21,
     0xA1A1, 0xA1FE, 0x0060, 0xA2B1, 0xA2E2, 0x00BE, 0xA2E5, 0xA2EE, 0x00F0,
     0xA2F1, 0xA2FC, 0x00FA, 0xA3A1, 0xA3FE, 0x0106, 0xA4A1, 0xA4F3, 0x0164,
diff --git a/core/fpdfapi/cmaps/GB1/GBpc-EUC-V_0.cpp b/core/fpdfapi/cmaps/GB1/GBpc-EUC-V_0.cpp
index a35858f..77f40c2 100644
--- a/core/fpdfapi/cmaps/GB1/GBpc-EUC-V_0.cpp
+++ b/core/fpdfapi/cmaps/GB1/GBpc-EUC-V_0.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/GB1/cmaps_gb1.h"
 
-const uint16_t g_FXCMAP_GBpc_EUC_V_0[20 * 3] = {
+const uint16_t kFXCMAP_GBpc_EUC_V_0[20 * 3] = {
     0xA1A2, 0xA1A2, 0x023F, 0xA1A3, 0xA1A3, 0x023E, 0xA1AA, 0xA1AA, 0x0256,
     0xA1AB, 0xA1AC, 0x1E18, 0xA1AD, 0xA1AD, 0x0257, 0xA1B2, 0xA1BF, 0x0246,
     0xA1FE, 0xA1FE, 0x1E1A, 0xA3A1, 0xA3A1, 0x0242, 0xA3A8, 0xA3A9, 0x0244,
diff --git a/core/fpdfapi/cmaps/GB1/UniGB-UCS2-H_4.cpp b/core/fpdfapi/cmaps/GB1/UniGB-UCS2-H_4.cpp
index e135f40..6d57b91 100644
--- a/core/fpdfapi/cmaps/GB1/UniGB-UCS2-H_4.cpp
+++ b/core/fpdfapi/cmaps/GB1/UniGB-UCS2-H_4.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/GB1/cmaps_gb1.h"
 
-const uint16_t g_FXCMAP_UniGB_UCS2_H_4[13825 * 3] = {
+const uint16_t kFXCMAP_UniGB_UCS2_H_4[13825 * 3] = {
     0x0020, 0x007E, 0x0001, 0x00A4, 0x00A4, 0x00A7, 0x00A5, 0x00A5, 0x5752,
     0x00A7, 0x00A7, 0x00AB, 0x00A8, 0x00A8, 0x0066, 0x00B0, 0x00B0, 0x00A2,
     0x00B1, 0x00B1, 0x007F, 0x00D7, 0x00D7, 0x0080, 0x00E0, 0x00E0, 0x029F,
diff --git a/core/fpdfapi/cmaps/GB1/UniGB-UCS2-V_4.cpp b/core/fpdfapi/cmaps/GB1/UniGB-UCS2-V_4.cpp
index 4ec5405..6898738 100644
--- a/core/fpdfapi/cmaps/GB1/UniGB-UCS2-V_4.cpp
+++ b/core/fpdfapi/cmaps/GB1/UniGB-UCS2-V_4.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/GB1/cmaps_gb1.h"
 
-const uint16_t g_FXCMAP_UniGB_UCS2_V_4[24 * 3] = {
+const uint16_t kFXCMAP_UniGB_UCS2_V_4[24 * 3] = {
     0x2014, 0x2014, 0x0256, 0x2026, 0x2026, 0x0257, 0x2225, 0x2225, 0x1E1C,
     0x3001, 0x3001, 0x023F, 0x3002, 0x3002, 0x023E, 0x3008, 0x300F, 0x0248,
     0x3010, 0x3011, 0x0252, 0x3013, 0x3013, 0x1E1A, 0x3014, 0x3015, 0x0246,
diff --git a/core/fpdfapi/cmaps/GB1/cmaps_gb1.cpp b/core/fpdfapi/cmaps/GB1/cmaps_gb1.cpp
index e7ea47e..62634ae 100644
--- a/core/fpdfapi/cmaps/GB1/cmaps_gb1.cpp
+++ b/core/fpdfapi/cmaps/GB1/cmaps_gb1.cpp
@@ -8,31 +8,29 @@
 
 #include "third_party/base/cxx17_backports.h"
 
-const FXCMAP_CMap g_FXCMAP_GB1_cmaps[] = {
-    {"GB-EUC-H", g_FXCMAP_GB_EUC_H_0, nullptr, 90, 0, FXCMAP_CMap::Range, 0},
-    {"GB-EUC-V", g_FXCMAP_GB_EUC_V_0, nullptr, 20, 0, FXCMAP_CMap::Range, -1},
-    {"GBpc-EUC-H", g_FXCMAP_GBpc_EUC_H_0, nullptr, 91, 0, FXCMAP_CMap::Range,
-     0},
-    {"GBpc-EUC-V", g_FXCMAP_GBpc_EUC_V_0, nullptr, 20, 0, FXCMAP_CMap::Range,
+const FXCMAP_CMap kFXCMAP_GB1_cmaps[] = {
+    {"GB-EUC-H", kFXCMAP_GB_EUC_H_0, nullptr, 90, 0, FXCMAP_CMap::Range, 0},
+    {"GB-EUC-V", kFXCMAP_GB_EUC_V_0, nullptr, 20, 0, FXCMAP_CMap::Range, -1},
+    {"GBpc-EUC-H", kFXCMAP_GBpc_EUC_H_0, nullptr, 91, 0, FXCMAP_CMap::Range, 0},
+    {"GBpc-EUC-V", kFXCMAP_GBpc_EUC_V_0, nullptr, 20, 0, FXCMAP_CMap::Range,
      -1},
-    {"GBK-EUC-H", g_FXCMAP_GBK_EUC_H_2, nullptr, 4071, 0, FXCMAP_CMap::Range,
-     0},
-    {"GBK-EUC-V", g_FXCMAP_GBK_EUC_V_2, nullptr, 20, 0, FXCMAP_CMap::Range, -1},
-    {"GBKp-EUC-H", g_FXCMAP_GBKp_EUC_H_2, nullptr, 4070, 0, FXCMAP_CMap::Range,
+    {"GBK-EUC-H", kFXCMAP_GBK_EUC_H_2, nullptr, 4071, 0, FXCMAP_CMap::Range, 0},
+    {"GBK-EUC-V", kFXCMAP_GBK_EUC_V_2, nullptr, 20, 0, FXCMAP_CMap::Range, -1},
+    {"GBKp-EUC-H", kFXCMAP_GBKp_EUC_H_2, nullptr, 4070, 0, FXCMAP_CMap::Range,
      -2},
-    {"GBKp-EUC-V", g_FXCMAP_GBKp_EUC_V_2, nullptr, 20, 0, FXCMAP_CMap::Range,
+    {"GBKp-EUC-V", kFXCMAP_GBKp_EUC_V_2, nullptr, 20, 0, FXCMAP_CMap::Range,
      -1},
-    {"GBK2K-H", g_FXCMAP_GBK2K_H_5, g_FXCMAP_GBK2K_H_5_DWord, 4071, 1017,
+    {"GBK2K-H", kFXCMAP_GBK2K_H_5, kFXCMAP_GBK2K_H_5_DWord, 4071, 1017,
      FXCMAP_CMap::Range, -4},
-    {"GBK2K-V", g_FXCMAP_GBK2K_V_5, nullptr, 41, 0, FXCMAP_CMap::Range, -1},
-    {"UniGB-UCS2-H", g_FXCMAP_UniGB_UCS2_H_4, nullptr, 13825, 0,
+    {"GBK2K-V", kFXCMAP_GBK2K_V_5, nullptr, 41, 0, FXCMAP_CMap::Range, -1},
+    {"UniGB-UCS2-H", kFXCMAP_UniGB_UCS2_H_4, nullptr, 13825, 0,
      FXCMAP_CMap::Range, 0},
-    {"UniGB-UCS2-V", g_FXCMAP_UniGB_UCS2_V_4, nullptr, 24, 0,
-     FXCMAP_CMap::Range, -1},
-    {"UniGB-UTF16-H", g_FXCMAP_UniGB_UCS2_H_4, nullptr, 13825, 0,
+    {"UniGB-UCS2-V", kFXCMAP_UniGB_UCS2_V_4, nullptr, 24, 0, FXCMAP_CMap::Range,
+     -1},
+    {"UniGB-UTF16-H", kFXCMAP_UniGB_UCS2_H_4, nullptr, 13825, 0,
      FXCMAP_CMap::Range, 0},
-    {"UniGB-UTF16-V", g_FXCMAP_UniGB_UCS2_V_4, nullptr, 24, 0,
+    {"UniGB-UTF16-V", kFXCMAP_UniGB_UCS2_V_4, nullptr, 24, 0,
      FXCMAP_CMap::Range, -1},
 };
 
-const size_t g_FXCMAP_GB1_cmaps_size = pdfium::size(g_FXCMAP_GB1_cmaps);
+const size_t kFXCMAP_GB1_cmaps_size = pdfium::size(kFXCMAP_GB1_cmaps);
diff --git a/core/fpdfapi/cmaps/GB1/cmaps_gb1.h b/core/fpdfapi/cmaps/GB1/cmaps_gb1.h
index 61b50c8..5483d3e 100644
--- a/core/fpdfapi/cmaps/GB1/cmaps_gb1.h
+++ b/core/fpdfapi/cmaps/GB1/cmaps_gb1.h
@@ -11,21 +11,21 @@
 
 #include "core/fpdfapi/cmaps/fpdf_cmaps.h"
 
-extern const uint16_t g_FXCMAP_GB_EUC_H_0[];
-extern const uint16_t g_FXCMAP_GB_EUC_V_0[];
-extern const uint16_t g_FXCMAP_GBpc_EUC_H_0[];
-extern const uint16_t g_FXCMAP_GBpc_EUC_V_0[];
-extern const uint16_t g_FXCMAP_GBK_EUC_H_2[];
-extern const uint16_t g_FXCMAP_GBK_EUC_V_2[];
-extern const uint16_t g_FXCMAP_GBKp_EUC_H_2[];
-extern const uint16_t g_FXCMAP_GBKp_EUC_V_2[];
-extern const uint16_t g_FXCMAP_GBK2K_H_5[];
-extern const FXCMAP_DWordCIDMap g_FXCMAP_GBK2K_H_5_DWord[];
-extern const uint16_t g_FXCMAP_GBK2K_V_5[];
-extern const uint16_t g_FXCMAP_UniGB_UCS2_H_4[];
-extern const uint16_t g_FXCMAP_UniGB_UCS2_V_4[];
-extern const uint16_t g_FXCMAP_GB1CID2Unicode_5[30284];
-extern const FXCMAP_CMap g_FXCMAP_GB1_cmaps[];
-extern const size_t g_FXCMAP_GB1_cmaps_size;
+extern const uint16_t kFXCMAP_GB_EUC_H_0[];
+extern const uint16_t kFXCMAP_GB_EUC_V_0[];
+extern const uint16_t kFXCMAP_GBpc_EUC_H_0[];
+extern const uint16_t kFXCMAP_GBpc_EUC_V_0[];
+extern const uint16_t kFXCMAP_GBK_EUC_H_2[];
+extern const uint16_t kFXCMAP_GBK_EUC_V_2[];
+extern const uint16_t kFXCMAP_GBKp_EUC_H_2[];
+extern const uint16_t kFXCMAP_GBKp_EUC_V_2[];
+extern const uint16_t kFXCMAP_GBK2K_H_5[];
+extern const FXCMAP_DWordCIDMap kFXCMAP_GBK2K_H_5_DWord[];
+extern const uint16_t kFXCMAP_GBK2K_V_5[];
+extern const uint16_t kFXCMAP_UniGB_UCS2_H_4[];
+extern const uint16_t kFXCMAP_UniGB_UCS2_V_4[];
+extern const uint16_t kFXCMAP_GB1CID2Unicode_5[30284];
+extern const FXCMAP_CMap kFXCMAP_GB1_cmaps[];
+extern const size_t kFXCMAP_GB1_cmaps_size;
 
 #endif  // CORE_FPDFAPI_CMAPS_GB1_CMAPS_GB1_H_
diff --git a/core/fpdfapi/cmaps/Japan1/83pv-RKSJ-H_1.cpp b/core/fpdfapi/cmaps/Japan1/83pv-RKSJ-H_1.cpp
index b3447af..dbe18cc 100644
--- a/core/fpdfapi/cmaps/Japan1/83pv-RKSJ-H_1.cpp
+++ b/core/fpdfapi/cmaps/Japan1/83pv-RKSJ-H_1.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Japan1/cmaps_japan1.h"
 
-const uint16_t g_FXCMAP_83pv_RKSJ_H_1[222 * 3] = {
+const uint16_t kFXCMAP_83pv_RKSJ_H_1[222 * 3] = {
     0x0020, 0x007E, 0x0001, 0x0080, 0x0080, 0x0061, 0x00A0, 0x00DF, 0x0146,
     0x00FD, 0x00FD, 0x0098, 0x00FE, 0x00FE, 0x00E4, 0x00FF, 0x00FF, 0x007C,
     0x8140, 0x817E, 0x0279, 0x8180, 0x81AC, 0x02B8, 0x81B8, 0x81BF, 0x02E5,
diff --git a/core/fpdfapi/cmaps/Japan1/90ms-RKSJ-H_2.cpp b/core/fpdfapi/cmaps/Japan1/90ms-RKSJ-H_2.cpp
index d5d29d6..a39d0bb 100644
--- a/core/fpdfapi/cmaps/Japan1/90ms-RKSJ-H_2.cpp
+++ b/core/fpdfapi/cmaps/Japan1/90ms-RKSJ-H_2.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Japan1/cmaps_japan1.h"
 
-const uint16_t g_FXCMAP_90ms_RKSJ_H_2[171 * 3] = {
+const uint16_t kFXCMAP_90ms_RKSJ_H_2[171 * 3] = {
     0x0020, 0x007D, 0x00E7, 0x007E, 0x007E, 0x0277, 0x00A0, 0x00DF, 0x0146,
     0x8140, 0x817E, 0x0279, 0x8180, 0x81AC, 0x02B8, 0x81B8, 0x81BF, 0x02E5,
     0x81C8, 0x81CE, 0x02ED, 0x81DA, 0x81E8, 0x02F4, 0x81F0, 0x81F7, 0x0303,
diff --git a/core/fpdfapi/cmaps/Japan1/90ms-RKSJ-V_2.cpp b/core/fpdfapi/cmaps/Japan1/90ms-RKSJ-V_2.cpp
index 1fb0c33..07a0bc6 100644
--- a/core/fpdfapi/cmaps/Japan1/90ms-RKSJ-V_2.cpp
+++ b/core/fpdfapi/cmaps/Japan1/90ms-RKSJ-V_2.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Japan1/cmaps_japan1.h"
 
-const uint16_t g_FXCMAP_90ms_RKSJ_V_2[78 * 3] = {
+const uint16_t kFXCMAP_90ms_RKSJ_V_2[78 * 3] = {
     0x8141, 0x8142, 0x1ECF, 0x8143, 0x8143, 0x204C, 0x8144, 0x8144, 0x2052,
     0x8150, 0x8151, 0x1ED1, 0x815B, 0x815D, 0x1ED3, 0x8160, 0x8164, 0x1ED6,
     0x8169, 0x817A, 0x1EDB, 0x8181, 0x8181, 0x1EED, 0x81A8, 0x81A8, 0x02E3,
diff --git a/core/fpdfapi/cmaps/Japan1/90msp-RKSJ-H_2.cpp b/core/fpdfapi/cmaps/Japan1/90msp-RKSJ-H_2.cpp
index 65081c8..fbd21f5 100644
--- a/core/fpdfapi/cmaps/Japan1/90msp-RKSJ-H_2.cpp
+++ b/core/fpdfapi/cmaps/Japan1/90msp-RKSJ-H_2.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Japan1/cmaps_japan1.h"
 
-const uint16_t g_FXCMAP_90msp_RKSJ_H_2[170 * 3] = {
+const uint16_t kFXCMAP_90msp_RKSJ_H_2[170 * 3] = {
     0x0020, 0x007E, 0x0001, 0x00A0, 0x00DF, 0x0146, 0x8140, 0x817E, 0x0279,
     0x8180, 0x81AC, 0x02B8, 0x81B8, 0x81BF, 0x02E5, 0x81C8, 0x81CE, 0x02ED,
     0x81DA, 0x81E8, 0x02F4, 0x81F0, 0x81F7, 0x0303, 0x81FC, 0x81FC, 0x030B,
diff --git a/core/fpdfapi/cmaps/Japan1/90msp-RKSJ-V_2.cpp b/core/fpdfapi/cmaps/Japan1/90msp-RKSJ-V_2.cpp
index 5a5e457..f0102bc 100644
--- a/core/fpdfapi/cmaps/Japan1/90msp-RKSJ-V_2.cpp
+++ b/core/fpdfapi/cmaps/Japan1/90msp-RKSJ-V_2.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Japan1/cmaps_japan1.h"
 
-const uint16_t g_FXCMAP_90msp_RKSJ_V_2[78 * 3] = {
+const uint16_t kFXCMAP_90msp_RKSJ_V_2[78 * 3] = {
     0x8141, 0x8142, 0x1ECF, 0x8143, 0x8143, 0x204C, 0x8144, 0x8144, 0x2052,
     0x8150, 0x8151, 0x1ED1, 0x815B, 0x815D, 0x1ED3, 0x8160, 0x8164, 0x1ED6,
     0x8169, 0x817A, 0x1EDB, 0x8181, 0x8181, 0x1EED, 0x81A8, 0x81A8, 0x02E3,
diff --git a/core/fpdfapi/cmaps/Japan1/90pv-RKSJ-H_1.cpp b/core/fpdfapi/cmaps/Japan1/90pv-RKSJ-H_1.cpp
index e41b839..71b08e3 100644
--- a/core/fpdfapi/cmaps/Japan1/90pv-RKSJ-H_1.cpp
+++ b/core/fpdfapi/cmaps/Japan1/90pv-RKSJ-H_1.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Japan1/cmaps_japan1.h"
 
-const uint16_t g_FXCMAP_90pv_RKSJ_H_1[263 * 3] = {
+const uint16_t kFXCMAP_90pv_RKSJ_H_1[263 * 3] = {
     0x0020, 0x007E, 0x0001, 0x0080, 0x0080, 0x0061, 0x00A0, 0x00DF, 0x0146,
     0x00FD, 0x00FD, 0x0098, 0x00FE, 0x00FE, 0x00E4, 0x00FF, 0x00FF, 0x007C,
     0x8140, 0x817E, 0x0279, 0x8180, 0x81AC, 0x02B8, 0x81B8, 0x81BF, 0x02E5,
diff --git a/core/fpdfapi/cmaps/Japan1/Add-RKSJ-H_1.cpp b/core/fpdfapi/cmaps/Japan1/Add-RKSJ-H_1.cpp
index 53dc754..ab5b4be 100644
--- a/core/fpdfapi/cmaps/Japan1/Add-RKSJ-H_1.cpp
+++ b/core/fpdfapi/cmaps/Japan1/Add-RKSJ-H_1.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Japan1/cmaps_japan1.h"
 
-const uint16_t g_FXCMAP_Add_RKSJ_H_1[635 * 3] = {
+const uint16_t kFXCMAP_Add_RKSJ_H_1[635 * 3] = {
     0x0020, 0x007E, 0x00E7, 0x00A0, 0x00DF, 0x0146, 0x8140, 0x817E, 0x0279,
     0x8180, 0x81AC, 0x02B8, 0x81B8, 0x81BF, 0x02E5, 0x81C8, 0x81CE, 0x02ED,
     0x81DA, 0x81E8, 0x02F4, 0x81F0, 0x81F7, 0x0303, 0x81FC, 0x81FC, 0x030B,
diff --git a/core/fpdfapi/cmaps/Japan1/Add-RKSJ-V_1.cpp b/core/fpdfapi/cmaps/Japan1/Add-RKSJ-V_1.cpp
index 47be931..55208d4 100644
--- a/core/fpdfapi/cmaps/Japan1/Add-RKSJ-V_1.cpp
+++ b/core/fpdfapi/cmaps/Japan1/Add-RKSJ-V_1.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Japan1/cmaps_japan1.h"
 
-const uint16_t g_FXCMAP_Add_RKSJ_V_1[57 * 3] = {
+const uint16_t kFXCMAP_Add_RKSJ_V_1[57 * 3] = {
     0x8141, 0x8142, 0x1ECF, 0x8143, 0x8143, 0x204C, 0x8144, 0x8144, 0x2052,
     0x8150, 0x8151, 0x1ED1, 0x815B, 0x815D, 0x1ED3, 0x8160, 0x8164, 0x1ED6,
     0x8165, 0x8165, 0x205A, 0x8166, 0x8166, 0x2053, 0x8167, 0x8167, 0x2058,
diff --git a/core/fpdfapi/cmaps/Japan1/Adobe-Japan1-UCS2_4.cpp b/core/fpdfapi/cmaps/Japan1/Adobe-Japan1-UCS2_4.cpp
index fbef3f1..de94717 100644
--- a/core/fpdfapi/cmaps/Japan1/Adobe-Japan1-UCS2_4.cpp
+++ b/core/fpdfapi/cmaps/Japan1/Adobe-Japan1-UCS2_4.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Japan1/cmaps_japan1.h"
 
-const uint16_t g_FXCMAP_Japan1CID2Unicode_4[15444] = {
+const uint16_t kFXCMAP_Japan1CID2Unicode_4[15444] = {
     0xFFFD, 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027,
     0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F, 0x0030,
     0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, 0x0038, 0x0039,
diff --git a/core/fpdfapi/cmaps/Japan1/EUC-H_1.cpp b/core/fpdfapi/cmaps/Japan1/EUC-H_1.cpp
index ddb1bcf..6ea5456 100644
--- a/core/fpdfapi/cmaps/Japan1/EUC-H_1.cpp
+++ b/core/fpdfapi/cmaps/Japan1/EUC-H_1.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Japan1/cmaps_japan1.h"
 
-const uint16_t g_FXCMAP_EUC_H_1[120 * 3] = {
+const uint16_t kFXCMAP_EUC_H_1[120 * 3] = {
     0x0020, 0x007E, 0x00E7, 0x8EA0, 0x8EDF, 0x0146, 0xA1A1, 0xA1FE, 0x0279,
     0xA2A1, 0xA2AE, 0x02D7, 0xA2BA, 0xA2C1, 0x02E5, 0xA2CA, 0xA2D0, 0x02ED,
     0xA2DC, 0xA2EA, 0x02F4, 0xA2F2, 0xA2F9, 0x0303, 0xA2FE, 0xA2FE, 0x030B,
diff --git a/core/fpdfapi/cmaps/Japan1/EUC-V_1.cpp b/core/fpdfapi/cmaps/Japan1/EUC-V_1.cpp
index d5a70c6..1c7d6de 100644
--- a/core/fpdfapi/cmaps/Japan1/EUC-V_1.cpp
+++ b/core/fpdfapi/cmaps/Japan1/EUC-V_1.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Japan1/cmaps_japan1.h"
 
-const uint16_t g_FXCMAP_EUC_V_1[27 * 3] = {
+const uint16_t kFXCMAP_EUC_V_1[27 * 3] = {
     0xA1A2, 0xA1A3, 0x1ECF, 0xA1B1, 0xA1B2, 0x1ED1, 0xA1BC, 0xA1BE, 0x1ED3,
     0xA1C1, 0xA1C5, 0x1ED6, 0xA1CA, 0xA1DB, 0x1EDB, 0xA1E1, 0xA1E1, 0x1EED,
     0xA4A1, 0xA4A1, 0x1EEE, 0xA4A3, 0xA4A3, 0x1EEF, 0xA4A5, 0xA4A5, 0x1EF0,
diff --git a/core/fpdfapi/cmaps/Japan1/Ext-RKSJ-H_2.cpp b/core/fpdfapi/cmaps/Japan1/Ext-RKSJ-H_2.cpp
index b251c5d..b53c098 100644
--- a/core/fpdfapi/cmaps/Japan1/Ext-RKSJ-H_2.cpp
+++ b/core/fpdfapi/cmaps/Japan1/Ext-RKSJ-H_2.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Japan1/cmaps_japan1.h"
 
-const uint16_t g_FXCMAP_Ext_RKSJ_H_2[665 * 3] = {
+const uint16_t kFXCMAP_Ext_RKSJ_H_2[665 * 3] = {
     0x0020, 0x007E, 0x00E7, 0x00A0, 0x00DF, 0x0146, 0x8140, 0x817E, 0x0279,
     0x8180, 0x8188, 0x02B8, 0x8189, 0x8189, 0x1D36, 0x818A, 0x81AC, 0x02C2,
     0x824F, 0x8258, 0x030C, 0x8260, 0x8279, 0x0316, 0x8281, 0x829A, 0x0330,
diff --git a/core/fpdfapi/cmaps/Japan1/Ext-RKSJ-V_2.cpp b/core/fpdfapi/cmaps/Japan1/Ext-RKSJ-V_2.cpp
index b62e5a5..19e733c 100644
--- a/core/fpdfapi/cmaps/Japan1/Ext-RKSJ-V_2.cpp
+++ b/core/fpdfapi/cmaps/Japan1/Ext-RKSJ-V_2.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Japan1/cmaps_japan1.h"
 
-const uint16_t g_FXCMAP_Ext_RKSJ_V_2[39 * 3] = {
+const uint16_t kFXCMAP_Ext_RKSJ_V_2[39 * 3] = {
     0x8141, 0x8142, 0x1ECF, 0x8143, 0x8143, 0x204C, 0x8144, 0x8144, 0x2052,
     0x814A, 0x814A, 0x2050, 0x814B, 0x814B, 0x204F, 0x815B, 0x815D, 0x1ED3,
     0x8160, 0x8164, 0x1ED6, 0x8165, 0x8165, 0x2059, 0x8166, 0x8166, 0x2054,
diff --git a/core/fpdfapi/cmaps/Japan1/H_1.cpp b/core/fpdfapi/cmaps/Japan1/H_1.cpp
index be32b5c..87e400c 100644
--- a/core/fpdfapi/cmaps/Japan1/H_1.cpp
+++ b/core/fpdfapi/cmaps/Japan1/H_1.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Japan1/cmaps_japan1.h"
 
-const uint16_t g_FXCMAP_H_1[118 * 3] = {
+const uint16_t kFXCMAP_H_1[118 * 3] = {
     0x2121, 0x217E, 0x0279, 0x2221, 0x222E, 0x02D7, 0x223A, 0x2241, 0x02E5,
     0x224A, 0x2250, 0x02ED, 0x225C, 0x226A, 0x02F4, 0x2272, 0x2279, 0x0303,
     0x227E, 0x227E, 0x030B, 0x2330, 0x2339, 0x030C, 0x2341, 0x235A, 0x0316,
diff --git a/core/fpdfapi/cmaps/Japan1/UniJIS-UCS2-HW-H_4.cpp b/core/fpdfapi/cmaps/Japan1/UniJIS-UCS2-HW-H_4.cpp
index e03c139..07f2a07 100644
--- a/core/fpdfapi/cmaps/Japan1/UniJIS-UCS2-HW-H_4.cpp
+++ b/core/fpdfapi/cmaps/Japan1/UniJIS-UCS2-HW-H_4.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Japan1/cmaps_japan1.h"
 
-const uint16_t g_FXCMAP_UniJIS_UCS2_HW_H_4[4 * 3] = {
+const uint16_t kFXCMAP_UniJIS_UCS2_HW_H_4[4 * 3] = {
     0x0020, 0x005B, 0x00E7, 0x005C, 0x005C, 0x220F,
     0x005D, 0x007E, 0x0124, 0x00A5, 0x00A5, 0x0123,
 };
diff --git a/core/fpdfapi/cmaps/Japan1/UniJIS-UCS2-HW-V_4.cpp b/core/fpdfapi/cmaps/Japan1/UniJIS-UCS2-HW-V_4.cpp
index 3f3a2a4..ed295e7 100644
--- a/core/fpdfapi/cmaps/Japan1/UniJIS-UCS2-HW-V_4.cpp
+++ b/core/fpdfapi/cmaps/Japan1/UniJIS-UCS2-HW-V_4.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Japan1/cmaps_japan1.h"
 
-const uint16_t g_FXCMAP_UniJIS_UCS2_HW_V_4[199 * 3] = {
+const uint16_t kFXCMAP_UniJIS_UCS2_HW_V_4[199 * 3] = {
     0x0020, 0x005B, 0x00E7, 0x005C, 0x005C, 0x220F, 0x005D, 0x007E, 0x0124,
     0x00A5, 0x00A5, 0x0123, 0x00B0, 0x00B0, 0x204D, 0x2010, 0x2010, 0x1ED5,
     0x2015, 0x2015, 0x1ED4, 0x2016, 0x2016, 0x1ED7, 0x2018, 0x2019, 0x2059,
diff --git a/core/fpdfapi/cmaps/Japan1/UniJIS-UCS2-H_4.cpp b/core/fpdfapi/cmaps/Japan1/UniJIS-UCS2-H_4.cpp
index a8c8461..494951b 100644
--- a/core/fpdfapi/cmaps/Japan1/UniJIS-UCS2-H_4.cpp
+++ b/core/fpdfapi/cmaps/Japan1/UniJIS-UCS2-H_4.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Japan1/cmaps_japan1.h"
 
-const uint16_t g_FXCMAP_UniJIS_UCS2_H_4[9772 * 2] = {
+const uint16_t kFXCMAP_UniJIS_UCS2_H_4[9772 * 2] = {
     0x0020, 0x0001, 0x0021, 0x0002, 0x0022, 0x0003, 0x0023, 0x0004, 0x0024,
     0x0005, 0x0025, 0x0006, 0x0026, 0x0007, 0x0027, 0x0008, 0x0028, 0x0009,
     0x0029, 0x000A, 0x002A, 0x000B, 0x002B, 0x000C, 0x002C, 0x000D, 0x002D,
diff --git a/core/fpdfapi/cmaps/Japan1/UniJIS-UCS2-V_4.cpp b/core/fpdfapi/cmaps/Japan1/UniJIS-UCS2-V_4.cpp
index 0e6b215..dc58e62 100644
--- a/core/fpdfapi/cmaps/Japan1/UniJIS-UCS2-V_4.cpp
+++ b/core/fpdfapi/cmaps/Japan1/UniJIS-UCS2-V_4.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Japan1/cmaps_japan1.h"
 
-const uint16_t g_FXCMAP_UniJIS_UCS2_V_4[251 * 2] = {
+const uint16_t kFXCMAP_UniJIS_UCS2_V_4[251 * 2] = {
     0x00B0, 0x204D, 0x2010, 0x1ED5, 0x2015, 0x1ED4, 0x2016, 0x1ED7, 0x2018,
     0x2059, 0x2019, 0x205A, 0x201C, 0x2057, 0x201D, 0x2058, 0x2025, 0x1EDA,
     0x2026, 0x1ED9, 0x2032, 0x2051, 0x2033, 0x205B, 0x2190, 0x02E2, 0x2191,
diff --git a/core/fpdfapi/cmaps/Japan1/V_1.cpp b/core/fpdfapi/cmaps/Japan1/V_1.cpp
index 645e1ef..6c36e67 100644
--- a/core/fpdfapi/cmaps/Japan1/V_1.cpp
+++ b/core/fpdfapi/cmaps/Japan1/V_1.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Japan1/cmaps_japan1.h"
 
-const uint16_t g_FXCMAP_V_1[27 * 3] = {
+const uint16_t kFXCMAP_V_1[27 * 3] = {
     0x2122, 0x2123, 0x1ECF, 0x2131, 0x2132, 0x1ED1, 0x213C, 0x213E, 0x1ED3,
     0x2141, 0x2145, 0x1ED6, 0x214A, 0x215B, 0x1EDB, 0x2161, 0x2161, 0x1EED,
     0x2421, 0x2421, 0x1EEE, 0x2423, 0x2423, 0x1EEF, 0x2425, 0x2425, 0x1EF0,
diff --git a/core/fpdfapi/cmaps/Japan1/cmaps_japan1.cpp b/core/fpdfapi/cmaps/Japan1/cmaps_japan1.cpp
index 03673a4..0e6828e 100644
--- a/core/fpdfapi/cmaps/Japan1/cmaps_japan1.cpp
+++ b/core/fpdfapi/cmaps/Japan1/cmaps_japan1.cpp
@@ -8,43 +8,43 @@
 
 #include "third_party/base/cxx17_backports.h"
 
-const FXCMAP_CMap g_FXCMAP_Japan1_cmaps[] = {
-    {"83pv-RKSJ-H", g_FXCMAP_83pv_RKSJ_H_1, nullptr, 222, 0, FXCMAP_CMap::Range,
+const FXCMAP_CMap kFXCMAP_Japan1_cmaps[] = {
+    {"83pv-RKSJ-H", kFXCMAP_83pv_RKSJ_H_1, nullptr, 222, 0, FXCMAP_CMap::Range,
      0},
-    {"90ms-RKSJ-H", g_FXCMAP_90ms_RKSJ_H_2, nullptr, 171, 0, FXCMAP_CMap::Range,
+    {"90ms-RKSJ-H", kFXCMAP_90ms_RKSJ_H_2, nullptr, 171, 0, FXCMAP_CMap::Range,
      0},
-    {"90ms-RKSJ-V", g_FXCMAP_90ms_RKSJ_V_2, nullptr, 78, 0, FXCMAP_CMap::Range,
+    {"90ms-RKSJ-V", kFXCMAP_90ms_RKSJ_V_2, nullptr, 78, 0, FXCMAP_CMap::Range,
      -1},
-    {"90msp-RKSJ-H", g_FXCMAP_90msp_RKSJ_H_2, nullptr, 170, 0,
+    {"90msp-RKSJ-H", kFXCMAP_90msp_RKSJ_H_2, nullptr, 170, 0,
      FXCMAP_CMap::Range, -2},
-    {"90msp-RKSJ-V", g_FXCMAP_90msp_RKSJ_V_2, nullptr, 78, 0,
-     FXCMAP_CMap::Range, -1},
-    {"90pv-RKSJ-H", g_FXCMAP_90pv_RKSJ_H_1, nullptr, 263, 0, FXCMAP_CMap::Range,
-     0},
-    {"Add-RKSJ-H", g_FXCMAP_Add_RKSJ_H_1, nullptr, 635, 0, FXCMAP_CMap::Range,
-     0},
-    {"Add-RKSJ-V", g_FXCMAP_Add_RKSJ_V_1, nullptr, 57, 0, FXCMAP_CMap::Range,
+    {"90msp-RKSJ-V", kFXCMAP_90msp_RKSJ_V_2, nullptr, 78, 0, FXCMAP_CMap::Range,
      -1},
-    {"EUC-H", g_FXCMAP_EUC_H_1, nullptr, 120, 0, FXCMAP_CMap::Range, 0},
-    {"EUC-V", g_FXCMAP_EUC_V_1, nullptr, 27, 0, FXCMAP_CMap::Range, -1},
-    {"Ext-RKSJ-H", g_FXCMAP_Ext_RKSJ_H_2, nullptr, 665, 0, FXCMAP_CMap::Range,
+    {"90pv-RKSJ-H", kFXCMAP_90pv_RKSJ_H_1, nullptr, 263, 0, FXCMAP_CMap::Range,
+     0},
+    {"Add-RKSJ-H", kFXCMAP_Add_RKSJ_H_1, nullptr, 635, 0, FXCMAP_CMap::Range,
+     0},
+    {"Add-RKSJ-V", kFXCMAP_Add_RKSJ_V_1, nullptr, 57, 0, FXCMAP_CMap::Range,
+     -1},
+    {"EUC-H", kFXCMAP_EUC_H_1, nullptr, 120, 0, FXCMAP_CMap::Range, 0},
+    {"EUC-V", kFXCMAP_EUC_V_1, nullptr, 27, 0, FXCMAP_CMap::Range, -1},
+    {"Ext-RKSJ-H", kFXCMAP_Ext_RKSJ_H_2, nullptr, 665, 0, FXCMAP_CMap::Range,
      -4},
-    {"Ext-RKSJ-V", g_FXCMAP_Ext_RKSJ_V_2, nullptr, 39, 0, FXCMAP_CMap::Range,
+    {"Ext-RKSJ-V", kFXCMAP_Ext_RKSJ_V_2, nullptr, 39, 0, FXCMAP_CMap::Range,
      -1},
-    {"H", g_FXCMAP_H_1, nullptr, 118, 0, FXCMAP_CMap::Range, 0},
-    {"V", g_FXCMAP_V_1, nullptr, 27, 0, FXCMAP_CMap::Range, -1},
-    {"UniJIS-UCS2-H", g_FXCMAP_UniJIS_UCS2_H_4, nullptr, 9772, 0,
+    {"H", kFXCMAP_H_1, nullptr, 118, 0, FXCMAP_CMap::Range, 0},
+    {"V", kFXCMAP_V_1, nullptr, 27, 0, FXCMAP_CMap::Range, -1},
+    {"UniJIS-UCS2-H", kFXCMAP_UniJIS_UCS2_H_4, nullptr, 9772, 0,
      FXCMAP_CMap::Single, 0},
-    {"UniJIS-UCS2-V", g_FXCMAP_UniJIS_UCS2_V_4, nullptr, 251, 0,
+    {"UniJIS-UCS2-V", kFXCMAP_UniJIS_UCS2_V_4, nullptr, 251, 0,
      FXCMAP_CMap::Single, -1},
-    {"UniJIS-UCS2-HW-H", g_FXCMAP_UniJIS_UCS2_HW_H_4, nullptr, 4, 0,
+    {"UniJIS-UCS2-HW-H", kFXCMAP_UniJIS_UCS2_HW_H_4, nullptr, 4, 0,
      FXCMAP_CMap::Range, -2},
-    {"UniJIS-UCS2-HW-V", g_FXCMAP_UniJIS_UCS2_HW_V_4, nullptr, 199, 0,
+    {"UniJIS-UCS2-HW-V", kFXCMAP_UniJIS_UCS2_HW_V_4, nullptr, 199, 0,
      FXCMAP_CMap::Range, -1},
-    {"UniJIS-UTF16-H", g_FXCMAP_UniJIS_UCS2_H_4, nullptr, 9772, 0,
+    {"UniJIS-UTF16-H", kFXCMAP_UniJIS_UCS2_H_4, nullptr, 9772, 0,
      FXCMAP_CMap::Single, 0},
-    {"UniJIS-UTF16-V", g_FXCMAP_UniJIS_UCS2_V_4, nullptr, 251, 0,
+    {"UniJIS-UTF16-V", kFXCMAP_UniJIS_UCS2_V_4, nullptr, 251, 0,
      FXCMAP_CMap::Single, -1},
 };
 
-const size_t g_FXCMAP_Japan1_cmaps_size = pdfium::size(g_FXCMAP_Japan1_cmaps);
+const size_t kFXCMAP_Japan1_cmaps_size = pdfium::size(kFXCMAP_Japan1_cmaps);
diff --git a/core/fpdfapi/cmaps/Japan1/cmaps_japan1.h b/core/fpdfapi/cmaps/Japan1/cmaps_japan1.h
index f0b3014..8486d96 100644
--- a/core/fpdfapi/cmaps/Japan1/cmaps_japan1.h
+++ b/core/fpdfapi/cmaps/Japan1/cmaps_japan1.h
@@ -11,29 +11,29 @@
 
 #include "core/fpdfapi/cmaps/fpdf_cmaps.h"
 
-extern const uint16_t g_FXCMAP_83pv_RKSJ_H_1[];
-extern const uint16_t g_FXCMAP_90ms_RKSJ_H_2[];
-extern const uint16_t g_FXCMAP_90ms_RKSJ_V_2[];
-extern const uint16_t g_FXCMAP_90msp_RKSJ_H_2[];
-extern const uint16_t g_FXCMAP_90msp_RKSJ_V_2[];
-extern const uint16_t g_FXCMAP_90pv_RKSJ_H_1[];
-extern const uint16_t g_FXCMAP_Add_RKSJ_H_1[];
-extern const uint16_t g_FXCMAP_Add_RKSJ_V_1[];
-extern const uint16_t g_FXCMAP_EUC_H_1[];
-extern const uint16_t g_FXCMAP_EUC_V_1[];
-extern const uint16_t g_FXCMAP_Ext_RKSJ_H_2[];
-extern const uint16_t g_FXCMAP_Ext_RKSJ_V_2[];
-extern const uint16_t g_FXCMAP_H_1[];
-extern const uint16_t g_FXCMAP_V_1[];
-extern const uint16_t g_FXCMAP_UniJIS_UCS2_H_4[];
-extern const uint16_t g_FXCMAP_UniJIS_UCS2_V_4[];
-extern const uint16_t g_FXCMAP_UniJIS_UCS2_HW_H_4[];
-extern const uint16_t g_FXCMAP_UniJIS_UCS2_HW_V_4[];
-extern const uint16_t g_FXCMAP_UniJIS_UTF16_H_0[];
-extern const uint16_t g_FXCMAP_UniJIS_UTF16_H_0_DWord[];
-extern const uint16_t g_FXCMAP_UniJIS_UTF16_V_0[];
-extern const uint16_t g_FXCMAP_Japan1CID2Unicode_4[15444];
-extern const FXCMAP_CMap g_FXCMAP_Japan1_cmaps[];
-extern const size_t g_FXCMAP_Japan1_cmaps_size;
+extern const uint16_t kFXCMAP_83pv_RKSJ_H_1[];
+extern const uint16_t kFXCMAP_90ms_RKSJ_H_2[];
+extern const uint16_t kFXCMAP_90ms_RKSJ_V_2[];
+extern const uint16_t kFXCMAP_90msp_RKSJ_H_2[];
+extern const uint16_t kFXCMAP_90msp_RKSJ_V_2[];
+extern const uint16_t kFXCMAP_90pv_RKSJ_H_1[];
+extern const uint16_t kFXCMAP_Add_RKSJ_H_1[];
+extern const uint16_t kFXCMAP_Add_RKSJ_V_1[];
+extern const uint16_t kFXCMAP_EUC_H_1[];
+extern const uint16_t kFXCMAP_EUC_V_1[];
+extern const uint16_t kFXCMAP_Ext_RKSJ_H_2[];
+extern const uint16_t kFXCMAP_Ext_RKSJ_V_2[];
+extern const uint16_t kFXCMAP_H_1[];
+extern const uint16_t kFXCMAP_V_1[];
+extern const uint16_t kFXCMAP_UniJIS_UCS2_H_4[];
+extern const uint16_t kFXCMAP_UniJIS_UCS2_V_4[];
+extern const uint16_t kFXCMAP_UniJIS_UCS2_HW_H_4[];
+extern const uint16_t kFXCMAP_UniJIS_UCS2_HW_V_4[];
+extern const uint16_t kFXCMAP_UniJIS_UTF16_H_0[];
+extern const uint16_t kFXCMAP_UniJIS_UTF16_H_0_DWord[];
+extern const uint16_t kFXCMAP_UniJIS_UTF16_V_0[];
+extern const uint16_t kFXCMAP_Japan1CID2Unicode_4[15444];
+extern const FXCMAP_CMap kFXCMAP_Japan1_cmaps[];
+extern const size_t kFXCMAP_Japan1_cmaps_size;
 
 #endif  // CORE_FPDFAPI_CMAPS_JAPAN1_CMAPS_JAPAN1_H_
diff --git a/core/fpdfapi/cmaps/Korea1/Adobe-Korea1-UCS2_2.cpp b/core/fpdfapi/cmaps/Korea1/Adobe-Korea1-UCS2_2.cpp
index 3f81ff9..fb2afcb 100644
--- a/core/fpdfapi/cmaps/Korea1/Adobe-Korea1-UCS2_2.cpp
+++ b/core/fpdfapi/cmaps/Korea1/Adobe-Korea1-UCS2_2.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Korea1/cmaps_korea1.h"
 
-const uint16_t g_FXCMAP_Korea1CID2Unicode_2[18352] = {
+const uint16_t kFXCMAP_Korea1CID2Unicode_2[18352] = {
     0xFFFD, 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027,
     0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F, 0x0030,
     0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, 0x0038, 0x0039,
diff --git a/core/fpdfapi/cmaps/Korea1/KSC-EUC-H_0.cpp b/core/fpdfapi/cmaps/Korea1/KSC-EUC-H_0.cpp
index cce7899..582f8cb 100644
--- a/core/fpdfapi/cmaps/Korea1/KSC-EUC-H_0.cpp
+++ b/core/fpdfapi/cmaps/Korea1/KSC-EUC-H_0.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Korea1/cmaps_korea1.h"
 
-const uint16_t g_FXCMAP_KSC_EUC_H_0[467 * 3] = {
+const uint16_t kFXCMAP_KSC_EUC_H_0[467 * 3] = {
     0x0020, 0x007E, 0x1F9E, 0xA1A1, 0xA1FE, 0x0065, 0xA2A1, 0xA2E5, 0x00C3,
     0xA3A1, 0xA3FE, 0x0108, 0xA4A1, 0xA4D3, 0x0166, 0xA4D5, 0xA4FE, 0x0199,
     0xA5A1, 0xA5AA, 0x01C3, 0xA5B0, 0xA5B9, 0x01CD, 0xA5C1, 0xA5D8, 0x01D7,
diff --git a/core/fpdfapi/cmaps/Korea1/KSC-EUC-V_0.cpp b/core/fpdfapi/cmaps/Korea1/KSC-EUC-V_0.cpp
index 7408f9e..80c83bd 100644
--- a/core/fpdfapi/cmaps/Korea1/KSC-EUC-V_0.cpp
+++ b/core/fpdfapi/cmaps/Korea1/KSC-EUC-V_0.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Korea1/cmaps_korea1.h"
 
-const uint16_t g_FXCMAP_KSC_EUC_V_0[16 * 3] = {
+const uint16_t kFXCMAP_KSC_EUC_V_0[16 * 3] = {
     0xA1A2, 0xA1A3, 0x1F78, 0xA1A5, 0xA1A5, 0x1F7A, 0xA1A6, 0xA1A6,
     0x2080, 0xA1A9, 0xA1AB, 0x1F7B, 0xA1AD, 0xA1AD, 0x1F7E, 0xA1B2,
     0xA1BD, 0x1F7F, 0xA1EB, 0xA1EB, 0x1F8B, 0xA3A1, 0xA3A1, 0x1F8C,
diff --git a/core/fpdfapi/cmaps/Korea1/KSCms-UHC-HW-H_1.cpp b/core/fpdfapi/cmaps/Korea1/KSCms-UHC-HW-H_1.cpp
index fbbdee8..793e829 100644
--- a/core/fpdfapi/cmaps/Korea1/KSCms-UHC-HW-H_1.cpp
+++ b/core/fpdfapi/cmaps/Korea1/KSCms-UHC-HW-H_1.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Korea1/cmaps_korea1.h"
 
-const uint16_t g_FXCMAP_KSCms_UHC_HW_H_1[675 * 3] = {
+const uint16_t kFXCMAP_KSCms_UHC_HW_H_1[675 * 3] = {
     0x0020, 0x007E, 0x1F9E, 0x8141, 0x815A, 0x2475, 0x8161, 0x817A, 0x248F,
     0x8181, 0x81FE, 0x24A9, 0x8241, 0x825A, 0x2527, 0x8261, 0x827A, 0x2541,
     0x8281, 0x82FE, 0x255B, 0x8341, 0x835A, 0x25D9, 0x8361, 0x837A, 0x25F3,
diff --git a/core/fpdfapi/cmaps/Korea1/KSCms-UHC-HW-V_1.cpp b/core/fpdfapi/cmaps/Korea1/KSCms-UHC-HW-V_1.cpp
index 16ddafa..1eeb60e 100644
--- a/core/fpdfapi/cmaps/Korea1/KSCms-UHC-HW-V_1.cpp
+++ b/core/fpdfapi/cmaps/Korea1/KSCms-UHC-HW-V_1.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Korea1/cmaps_korea1.h"
 
-const uint16_t g_FXCMAP_KSCms_UHC_HW_V_1[16 * 3] = {
+const uint16_t kFXCMAP_KSCms_UHC_HW_V_1[16 * 3] = {
     0xA1A2, 0xA1A3, 0x1F78, 0xA1A5, 0xA1A5, 0x1F7A, 0xA1A6, 0xA1A6,
     0x2080, 0xA1A9, 0xA1AB, 0x1F7B, 0xA1AD, 0xA1AD, 0x1F7E, 0xA1B2,
     0xA1BD, 0x1F7F, 0xA1EB, 0xA1EB, 0x1F8B, 0xA3A1, 0xA3A1, 0x1F8C,
diff --git a/core/fpdfapi/cmaps/Korea1/KSCms-UHC-H_1.cpp b/core/fpdfapi/cmaps/Korea1/KSCms-UHC-H_1.cpp
index 986c879..0d384c6 100644
--- a/core/fpdfapi/cmaps/Korea1/KSCms-UHC-H_1.cpp
+++ b/core/fpdfapi/cmaps/Korea1/KSCms-UHC-H_1.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Korea1/cmaps_korea1.h"
 
-const uint16_t g_FXCMAP_KSCms_UHC_H_1[675 * 3] = {
+const uint16_t kFXCMAP_KSCms_UHC_H_1[675 * 3] = {
     0x0020, 0x007E, 0x0001, 0x8141, 0x815A, 0x2475, 0x8161, 0x817A, 0x248F,
     0x8181, 0x81FE, 0x24A9, 0x8241, 0x825A, 0x2527, 0x8261, 0x827A, 0x2541,
     0x8281, 0x82FE, 0x255B, 0x8341, 0x835A, 0x25D9, 0x8361, 0x837A, 0x25F3,
diff --git a/core/fpdfapi/cmaps/Korea1/KSCms-UHC-V_1.cpp b/core/fpdfapi/cmaps/Korea1/KSCms-UHC-V_1.cpp
index e040444..76c79f8 100644
--- a/core/fpdfapi/cmaps/Korea1/KSCms-UHC-V_1.cpp
+++ b/core/fpdfapi/cmaps/Korea1/KSCms-UHC-V_1.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Korea1/cmaps_korea1.h"
 
-const uint16_t g_FXCMAP_KSCms_UHC_V_1[16 * 3] = {
+const uint16_t kFXCMAP_KSCms_UHC_V_1[16 * 3] = {
     0xA1A2, 0xA1A3, 0x1F78, 0xA1A5, 0xA1A5, 0x1F7A, 0xA1A6, 0xA1A6,
     0x2080, 0xA1A9, 0xA1AB, 0x1F7B, 0xA1AD, 0xA1AD, 0x1F7E, 0xA1B2,
     0xA1BD, 0x1F7F, 0xA1EB, 0xA1EB, 0x1F8B, 0xA3A1, 0xA3A1, 0x1F8C,
diff --git a/core/fpdfapi/cmaps/Korea1/KSCpc-EUC-H_0.cpp b/core/fpdfapi/cmaps/Korea1/KSCpc-EUC-H_0.cpp
index 12fa16d..8f1cf89 100644
--- a/core/fpdfapi/cmaps/Korea1/KSCpc-EUC-H_0.cpp
+++ b/core/fpdfapi/cmaps/Korea1/KSCpc-EUC-H_0.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Korea1/cmaps_korea1.h"
 
-const uint16_t g_FXCMAP_KSCpc_EUC_H_0[509 * 3] = {
+const uint16_t kFXCMAP_KSCpc_EUC_H_0[509 * 3] = {
     0x0020, 0x007E, 0x0001, 0x0081, 0x0083, 0x0060, 0x00FE, 0x00FF, 0x0063,
     0xA141, 0xA17D, 0x1FFF, 0xA181, 0xA19A, 0x203C, 0xA19C, 0xA1A0, 0x2056,
     0xA1A1, 0xA1A1, 0x0065, 0xA1A2, 0xA1A3, 0x205B, 0xA1A4, 0xA1FE, 0x0068,
diff --git a/core/fpdfapi/cmaps/Korea1/UniKS-UCS2-H_1.cpp b/core/fpdfapi/cmaps/Korea1/UniKS-UCS2-H_1.cpp
index 8ed9fbe..c3e200b 100644
--- a/core/fpdfapi/cmaps/Korea1/UniKS-UCS2-H_1.cpp
+++ b/core/fpdfapi/cmaps/Korea1/UniKS-UCS2-H_1.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Korea1/cmaps_korea1.h"
 
-const uint16_t g_FXCMAP_UniKS_UCS2_H_1[8394 * 3] = {
+const uint16_t kFXCMAP_UniKS_UCS2_H_1[8394 * 3] = {
     0x0020, 0x007E, 0x0001, 0x00A1, 0x00A1, 0x00D0, 0x00A4, 0x00A4, 0x00D6,
     0x00A7, 0x00A7, 0x009B, 0x00A8, 0x00A8, 0x006B, 0x00AA, 0x00AA, 0x029C,
     0x00AB, 0x00AB, 0x00B0, 0x00B0, 0x00B0, 0x008A, 0x00B1, 0x00B1, 0x0082,
diff --git a/core/fpdfapi/cmaps/Korea1/UniKS-UCS2-V_1.cpp b/core/fpdfapi/cmaps/Korea1/UniKS-UCS2-V_1.cpp
index 46759c5..0556b93 100644
--- a/core/fpdfapi/cmaps/Korea1/UniKS-UCS2-V_1.cpp
+++ b/core/fpdfapi/cmaps/Korea1/UniKS-UCS2-V_1.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Korea1/cmaps_korea1.h"
 
-const uint16_t g_FXCMAP_UniKS_UCS2_V_1[18 * 3] = {
+const uint16_t kFXCMAP_UniKS_UCS2_V_1[18 * 3] = {
     0x2013, 0x2014, 0x1F7B, 0x2016, 0x2016, 0x1F7D, 0x2025, 0x2025, 0x1F7A,
     0x3001, 0x3002, 0x1F78, 0x3008, 0x3011, 0x1F81, 0x3013, 0x3013, 0x1F8B,
     0x3014, 0x3015, 0x1F7F, 0xFF01, 0xFF01, 0x1F8C, 0xFF08, 0xFF09, 0x1F8D,
diff --git a/core/fpdfapi/cmaps/Korea1/UniKS-UTF16-H_0.cpp b/core/fpdfapi/cmaps/Korea1/UniKS-UTF16-H_0.cpp
index 2101805..e939e70 100644
--- a/core/fpdfapi/cmaps/Korea1/UniKS-UTF16-H_0.cpp
+++ b/core/fpdfapi/cmaps/Korea1/UniKS-UTF16-H_0.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fpdfapi/cmaps/Korea1/cmaps_korea1.h"
 
-const uint16_t g_FXCMAP_UniKS_UTF16_H_0[158 * 2] = {
+const uint16_t kFXCMAP_UniKS_UTF16_H_0[158 * 2] = {
     0x00A9, 0x0062, 0x2010, 0x0061, 0x20A9, 0x0060, 0x2F00, 0x193C, 0x2F04,
     0x18EC, 0x2F06, 0x190D, 0x2F08, 0x192B, 0x2F0A, 0x194D, 0x2F0B, 0x1D4B,
     0x2F11, 0x10AE, 0x2F12, 0x116A, 0x2F14, 0x143F, 0x2F17, 0x168C, 0x2F18,
diff --git a/core/fpdfapi/cmaps/Korea1/cmaps_korea1.cpp b/core/fpdfapi/cmaps/Korea1/cmaps_korea1.cpp
index 8eff8cb..2fefb3e 100644
--- a/core/fpdfapi/cmaps/Korea1/cmaps_korea1.cpp
+++ b/core/fpdfapi/cmaps/Korea1/cmaps_korea1.cpp
@@ -8,27 +8,27 @@
 
 #include "third_party/base/cxx17_backports.h"
 
-const FXCMAP_CMap g_FXCMAP_Korea1_cmaps[] = {
-    {"KSC-EUC-H", g_FXCMAP_KSC_EUC_H_0, nullptr, 467, 0, FXCMAP_CMap::Range, 0},
-    {"KSC-EUC-V", g_FXCMAP_KSC_EUC_V_0, nullptr, 16, 0, FXCMAP_CMap::Range, -1},
-    {"KSCms-UHC-H", g_FXCMAP_KSCms_UHC_H_1, nullptr, 675, 0, FXCMAP_CMap::Range,
+const FXCMAP_CMap kFXCMAP_Korea1_cmaps[] = {
+    {"KSC-EUC-H", kFXCMAP_KSC_EUC_H_0, nullptr, 467, 0, FXCMAP_CMap::Range, 0},
+    {"KSC-EUC-V", kFXCMAP_KSC_EUC_V_0, nullptr, 16, 0, FXCMAP_CMap::Range, -1},
+    {"KSCms-UHC-H", kFXCMAP_KSCms_UHC_H_1, nullptr, 675, 0, FXCMAP_CMap::Range,
      -2},
-    {"KSCms-UHC-V", g_FXCMAP_KSCms_UHC_V_1, nullptr, 16, 0, FXCMAP_CMap::Range,
+    {"KSCms-UHC-V", kFXCMAP_KSCms_UHC_V_1, nullptr, 16, 0, FXCMAP_CMap::Range,
      -1},
-    {"KSCms-UHC-HW-H", g_FXCMAP_KSCms_UHC_HW_H_1, nullptr, 675, 0,
+    {"KSCms-UHC-HW-H", kFXCMAP_KSCms_UHC_HW_H_1, nullptr, 675, 0,
      FXCMAP_CMap::Range, 0},
-    {"KSCms-UHC-HW-V", g_FXCMAP_KSCms_UHC_HW_V_1, nullptr, 16, 0,
+    {"KSCms-UHC-HW-V", kFXCMAP_KSCms_UHC_HW_V_1, nullptr, 16, 0,
      FXCMAP_CMap::Range, -1},
-    {"KSCpc-EUC-H", g_FXCMAP_KSCpc_EUC_H_0, nullptr, 509, 0, FXCMAP_CMap::Range,
+    {"KSCpc-EUC-H", kFXCMAP_KSCpc_EUC_H_0, nullptr, 509, 0, FXCMAP_CMap::Range,
      -6},
-    {"UniKS-UCS2-H", g_FXCMAP_UniKS_UCS2_H_1, nullptr, 8394, 0,
+    {"UniKS-UCS2-H", kFXCMAP_UniKS_UCS2_H_1, nullptr, 8394, 0,
      FXCMAP_CMap::Range, 0},
-    {"UniKS-UCS2-V", g_FXCMAP_UniKS_UCS2_V_1, nullptr, 18, 0,
-     FXCMAP_CMap::Range, -1},
-    {"UniKS-UTF16-H", g_FXCMAP_UniKS_UTF16_H_0, nullptr, 158, 0,
+    {"UniKS-UCS2-V", kFXCMAP_UniKS_UCS2_V_1, nullptr, 18, 0, FXCMAP_CMap::Range,
+     -1},
+    {"UniKS-UTF16-H", kFXCMAP_UniKS_UTF16_H_0, nullptr, 158, 0,
      FXCMAP_CMap::Single, -2},
-    {"UniKS-UTF16-V", g_FXCMAP_UniKS_UCS2_V_1, nullptr, 18, 0,
+    {"UniKS-UTF16-V", kFXCMAP_UniKS_UCS2_V_1, nullptr, 18, 0,
      FXCMAP_CMap::Range, -1},
 };
 
-const size_t g_FXCMAP_Korea1_cmaps_size = pdfium::size(g_FXCMAP_Korea1_cmaps);
+const size_t kFXCMAP_Korea1_cmaps_size = pdfium::size(kFXCMAP_Korea1_cmaps);
diff --git a/core/fpdfapi/cmaps/Korea1/cmaps_korea1.h b/core/fpdfapi/cmaps/Korea1/cmaps_korea1.h
index f132824..9696146 100644
--- a/core/fpdfapi/cmaps/Korea1/cmaps_korea1.h
+++ b/core/fpdfapi/cmaps/Korea1/cmaps_korea1.h
@@ -11,18 +11,18 @@
 
 #include "core/fpdfapi/cmaps/fpdf_cmaps.h"
 
-extern const uint16_t g_FXCMAP_KSC_EUC_H_0[];
-extern const uint16_t g_FXCMAP_KSC_EUC_V_0[];
-extern const uint16_t g_FXCMAP_KSCms_UHC_H_1[];
-extern const uint16_t g_FXCMAP_KSCms_UHC_V_1[];
-extern const uint16_t g_FXCMAP_KSCms_UHC_HW_H_1[];
-extern const uint16_t g_FXCMAP_KSCms_UHC_HW_V_1[];
-extern const uint16_t g_FXCMAP_KSCpc_EUC_H_0[];
-extern const uint16_t g_FXCMAP_UniKS_UCS2_H_1[];
-extern const uint16_t g_FXCMAP_UniKS_UCS2_V_1[];
-extern const uint16_t g_FXCMAP_UniKS_UTF16_H_0[];
-extern const uint16_t g_FXCMAP_Korea1CID2Unicode_2[18352];
-extern const FXCMAP_CMap g_FXCMAP_Korea1_cmaps[];
-extern const size_t g_FXCMAP_Korea1_cmaps_size;
+extern const uint16_t kFXCMAP_KSC_EUC_H_0[];
+extern const uint16_t kFXCMAP_KSC_EUC_V_0[];
+extern const uint16_t kFXCMAP_KSCms_UHC_H_1[];
+extern const uint16_t kFXCMAP_KSCms_UHC_V_1[];
+extern const uint16_t kFXCMAP_KSCms_UHC_HW_H_1[];
+extern const uint16_t kFXCMAP_KSCms_UHC_HW_V_1[];
+extern const uint16_t kFXCMAP_KSCpc_EUC_H_0[];
+extern const uint16_t kFXCMAP_UniKS_UCS2_H_1[];
+extern const uint16_t kFXCMAP_UniKS_UCS2_V_1[];
+extern const uint16_t kFXCMAP_UniKS_UTF16_H_0[];
+extern const uint16_t kFXCMAP_Korea1CID2Unicode_2[18352];
+extern const FXCMAP_CMap kFXCMAP_Korea1_cmaps[];
+extern const size_t kFXCMAP_Korea1_cmaps_size;
 
 #endif  // CORE_FPDFAPI_CMAPS_KOREA1_CMAPS_KOREA1_H_
diff --git a/core/fpdfapi/font/cpdf_fontglobals.cpp b/core/fpdfapi/font/cpdf_fontglobals.cpp
index 1b86444..c3065b9 100644
--- a/core/fpdfapi/font/cpdf_fontglobals.cpp
+++ b/core/fpdfapi/font/cpdf_fontglobals.cpp
@@ -77,27 +77,27 @@
 }
 
 void CPDF_FontGlobals::LoadEmbeddedGB1CMaps() {
-  SetEmbeddedCharset(CIDSET_GB1, pdfium::make_span(g_FXCMAP_GB1_cmaps,
-                                                   g_FXCMAP_GB1_cmaps_size));
-  SetEmbeddedToUnicode(CIDSET_GB1, g_FXCMAP_GB1CID2Unicode_5);
+  SetEmbeddedCharset(
+      CIDSET_GB1, pdfium::make_span(kFXCMAP_GB1_cmaps, kFXCMAP_GB1_cmaps_size));
+  SetEmbeddedToUnicode(CIDSET_GB1, kFXCMAP_GB1CID2Unicode_5);
 }
 
 void CPDF_FontGlobals::LoadEmbeddedCNS1CMaps() {
-  SetEmbeddedCharset(CIDSET_CNS1, pdfium::make_span(g_FXCMAP_CNS1_cmaps,
-                                                    g_FXCMAP_CNS1_cmaps_size));
-  SetEmbeddedToUnicode(CIDSET_CNS1, g_FXCMAP_CNS1CID2Unicode_5);
+  SetEmbeddedCharset(CIDSET_CNS1, pdfium::make_span(kFXCMAP_CNS1_cmaps,
+                                                    kFXCMAP_CNS1_cmaps_size));
+  SetEmbeddedToUnicode(CIDSET_CNS1, kFXCMAP_CNS1CID2Unicode_5);
 }
 
 void CPDF_FontGlobals::LoadEmbeddedJapan1CMaps() {
   SetEmbeddedCharset(
       CIDSET_JAPAN1,
-      pdfium::make_span(g_FXCMAP_Japan1_cmaps, g_FXCMAP_Japan1_cmaps_size));
-  SetEmbeddedToUnicode(CIDSET_JAPAN1, g_FXCMAP_Japan1CID2Unicode_4);
+      pdfium::make_span(kFXCMAP_Japan1_cmaps, kFXCMAP_Japan1_cmaps_size));
+  SetEmbeddedToUnicode(CIDSET_JAPAN1, kFXCMAP_Japan1CID2Unicode_4);
 }
 
 void CPDF_FontGlobals::LoadEmbeddedKorea1CMaps() {
   SetEmbeddedCharset(
       CIDSET_KOREA1,
-      pdfium::make_span(g_FXCMAP_Korea1_cmaps, g_FXCMAP_Korea1_cmaps_size));
-  SetEmbeddedToUnicode(CIDSET_KOREA1, g_FXCMAP_Korea1CID2Unicode_2);
+      pdfium::make_span(kFXCMAP_Korea1_cmaps, kFXCMAP_Korea1_cmaps_size));
+  SetEmbeddedToUnicode(CIDSET_KOREA1, kFXCMAP_Korea1CID2Unicode_2);
 }