Use kConstant naming in fxbarcode.

-- Namespace one extern constant while at it, since it was a short name.

Change-Id: Ia2c06b6f662bf73235b69c58f2d8189fdb7fdd06
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/83791
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
diff --git a/fxbarcode/pdf417/BC_PDF417.cpp b/fxbarcode/pdf417/BC_PDF417.cpp
index ef91627..7effff7 100644
--- a/fxbarcode/pdf417/BC_PDF417.cpp
+++ b/fxbarcode/pdf417/BC_PDF417.cpp
@@ -31,7 +31,7 @@
 
 namespace {
 
-const uint16_t g_CodewordTable[3][929] = {
+const uint16_t kCodewordTable[3][929] = {
     {0xd5c0, 0xeaf0, 0xf57c, 0xd4e0, 0xea78, 0xf53e, 0xa8c0, 0xd470, 0xa860,
      0x5040, 0xa830, 0x5020, 0xadc0, 0xd6f0, 0xeb7c, 0xace0, 0xd678, 0xeb3e,
      0x58c0, 0xac70, 0x5860, 0x5dc0, 0xaef0, 0xd77c, 0x5ce0, 0xae78, 0xd73e,
@@ -346,7 +346,7 @@
      0x0fb2, 0xc7ea}};
 
 int32_t Get17BitCodeword(int i, int j) {
-  return (0x10000 | g_CodewordTable[i][j]);
+  return (0x10000 | kCodewordTable[i][j]);
 }
 
 }  // namespace
diff --git a/fxbarcode/qrcode/BC_QRCoderECBlocksData.cpp b/fxbarcode/qrcode/BC_QRCoderECBlocksData.cpp
index 26ff748..dbe3659 100644
--- a/fxbarcode/qrcode/BC_QRCoderECBlocksData.cpp
+++ b/fxbarcode/qrcode/BC_QRCoderECBlocksData.cpp
@@ -22,7 +22,9 @@
 
 #include "fxbarcode/qrcode/BC_QRCoderECBlocksData.h"
 
-const CBC_QRCoderECBlockData g_ECBData[40][4] = {
+namespace fxbarcode {
+
+const CBC_QRCoderECBlockData kECBData[40][4] = {
     {{7, 1, 19, 0, 0}, {10, 1, 16, 0, 0}, {13, 1, 13, 0, 0}, {17, 1, 9, 0, 0}},
     {{10, 1, 34, 0, 0},
      {16, 1, 28, 0, 0},
@@ -178,3 +180,5 @@
      {30, 34, 24, 34, 25},
      {30, 20, 15, 61, 16}},
 };
+
+}  // namespace fxbarcode
diff --git a/fxbarcode/qrcode/BC_QRCoderECBlocksData.h b/fxbarcode/qrcode/BC_QRCoderECBlocksData.h
index 7ed4ca4..b017cd0 100644
--- a/fxbarcode/qrcode/BC_QRCoderECBlocksData.h
+++ b/fxbarcode/qrcode/BC_QRCoderECBlocksData.h
@@ -17,6 +17,10 @@
   uint8_t dataCodeWords2;
 };
 
-extern const CBC_QRCoderECBlockData g_ECBData[40][4];
+namespace fxbarcode {
+
+extern const CBC_QRCoderECBlockData kECBData[40][4];
+
+}  // namespace fxbarcode
 
 #endif  // FXBARCODE_QRCODE_BC_QRCODERECBLOCKSDATA_H_
diff --git a/fxbarcode/qrcode/BC_QRCoderEncoder.cpp b/fxbarcode/qrcode/BC_QRCoderEncoder.cpp
index 5873107..9428b5e 100644
--- a/fxbarcode/qrcode/BC_QRCoderEncoder.cpp
+++ b/fxbarcode/qrcode/BC_QRCoderEncoder.cpp
@@ -55,7 +55,7 @@
 };
 
 // This is a mapping for an ASCII table, starting at an index of 32.
-const int8_t g_alphaNumericTable[] = {
+const int8_t kAlphaNumericTable[] = {
     36, -1, -1, -1, 37, 38, -1, -1, -1, -1, 39, 40, -1, 41, 42, 43,  // 32-47
     0,  1,  2,  3,  4,  5,  6,  7,  8,  9,  44, -1, -1, -1, -1, -1,  // 48-63
     -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,  // 64-79
@@ -65,9 +65,9 @@
   if (code < 32)
     return -1;
   size_t code_index = static_cast<size_t>(code - 32);
-  if (code_index >= pdfium::size(g_alphaNumericTable))
+  if (code_index >= pdfium::size(kAlphaNumericTable))
     return -1;
-  return g_alphaNumericTable[code_index];
+  return kAlphaNumericTable[code_index];
 }
 
 bool AppendNumericBytes(const ByteString& content, CBC_QRCoderBitVector* bits) {
diff --git a/fxbarcode/qrcode/BC_QRCoderVersion.cpp b/fxbarcode/qrcode/BC_QRCoderVersion.cpp
index f0074d2..0928b28 100644
--- a/fxbarcode/qrcode/BC_QRCoderVersion.cpp
+++ b/fxbarcode/qrcode/BC_QRCoderVersion.cpp
@@ -65,7 +65,7 @@
   if (g_VERSION->empty()) {
     for (int i = 0; i < kMaxVersion; ++i) {
       g_VERSION->push_back(
-          std::make_unique<CBC_QRCoderVersion>(i + 1, g_ECBData[i]));
+          std::make_unique<CBC_QRCoderVersion>(i + 1, fxbarcode::kECBData[i]));
     }
   }
   if (versionNumber < 1 || versionNumber > kMaxVersion)