diff --git a/core/fpdfapi/edit/cpdf_creator_embeddertest.cpp b/core/fpdfapi/edit/cpdf_creator_embeddertest.cpp
index 9d849c1..e8bee8d 100644
--- a/core/fpdfapi/edit/cpdf_creator_embeddertest.cpp
+++ b/core/fpdfapi/edit/cpdf_creator_embeddertest.cpp
@@ -5,7 +5,6 @@
 #include <cstring>
 #include <memory>
 #include <string>
-#include <vector>
 
 #include "core/fxcrt/fx_system.h"
 #include "public/cpp/fpdf_scopers.h"
diff --git a/core/fpdfapi/font/cpdf_cmapparser.cpp b/core/fpdfapi/font/cpdf_cmapparser.cpp
index 97e4d85..236d429 100644
--- a/core/fpdfapi/font/cpdf_cmapparser.cpp
+++ b/core/fpdfapi/font/cpdf_cmapparser.cpp
@@ -6,8 +6,6 @@
 
 #include "core/fpdfapi/font/cpdf_cmapparser.h"
 
-#include <vector>
-
 #include "core/fpdfapi/cmaps/fpdf_cmaps.h"
 #include "core/fpdfapi/parser/cpdf_array.h"
 #include "core/fpdfapi/parser/cpdf_dictionary.h"
diff --git a/core/fpdfapi/parser/cpdf_cross_ref_avail.cpp b/core/fpdfapi/parser/cpdf_cross_ref_avail.cpp
index bf5f423..7011f8e 100644
--- a/core/fpdfapi/parser/cpdf_cross_ref_avail.cpp
+++ b/core/fpdfapi/parser/cpdf_cross_ref_avail.cpp
@@ -6,7 +6,6 @@
 
 #include <algorithm>
 #include <memory>
-#include <vector>
 
 #include "core/fpdfapi/parser/cpdf_dictionary.h"
 #include "core/fpdfapi/parser/cpdf_name.h"
diff --git a/core/fpdfapi/parser/cpdf_cross_ref_table.cpp b/core/fpdfapi/parser/cpdf_cross_ref_table.cpp
index d37259b..8014f3d 100644
--- a/core/fpdfapi/parser/cpdf_cross_ref_table.cpp
+++ b/core/fpdfapi/parser/cpdf_cross_ref_table.cpp
@@ -5,7 +5,6 @@
 #include "core/fpdfapi/parser/cpdf_cross_ref_table.h"
 
 #include <utility>
-#include <vector>
 
 #include "core/fpdfapi/parser/cpdf_dictionary.h"
 #include "core/fpdfapi/parser/cpdf_parser.h"
diff --git a/core/fpdfapi/parser/cpdf_indirect_object_holder.h b/core/fpdfapi/parser/cpdf_indirect_object_holder.h
index 90eef86..49a2051 100644
--- a/core/fpdfapi/parser/cpdf_indirect_object_holder.h
+++ b/core/fpdfapi/parser/cpdf_indirect_object_holder.h
@@ -11,7 +11,6 @@
 #include <memory>
 #include <type_traits>
 #include <utility>
-#include <vector>
 
 #include "core/fpdfapi/parser/cpdf_object.h"
 #include "core/fxcrt/fx_system.h"
diff --git a/core/fpdfapi/parser/cpdf_simple_parser_unittest.cpp b/core/fpdfapi/parser/cpdf_simple_parser_unittest.cpp
index 98dbe17..580668a 100644
--- a/core/fpdfapi/parser/cpdf_simple_parser_unittest.cpp
+++ b/core/fpdfapi/parser/cpdf_simple_parser_unittest.cpp
@@ -4,8 +4,6 @@
 
 #include "core/fpdfapi/parser/cpdf_simple_parser.h"
 
-#include <string>
-
 #include "core/fpdfapi/parser/fpdf_parser_utility.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/test_support.h"
diff --git a/core/fpdfapi/parser/cpdf_syntax_parser.cpp b/core/fpdfapi/parser/cpdf_syntax_parser.cpp
index d1d05f6..0e07c3d 100644
--- a/core/fpdfapi/parser/cpdf_syntax_parser.cpp
+++ b/core/fpdfapi/parser/cpdf_syntax_parser.cpp
@@ -9,7 +9,6 @@
 #include <algorithm>
 #include <sstream>
 #include <utility>
-#include <vector>
 
 #include "core/fpdfapi/parser/cpdf_array.h"
 #include "core/fpdfapi/parser/cpdf_boolean.h"
diff --git a/core/fpdfapi/parser/cpdf_syntax_parser_unittest.cpp b/core/fpdfapi/parser/cpdf_syntax_parser_unittest.cpp
index 53f0a17..361f3d1 100644
--- a/core/fpdfapi/parser/cpdf_syntax_parser_unittest.cpp
+++ b/core/fpdfapi/parser/cpdf_syntax_parser_unittest.cpp
@@ -3,7 +3,6 @@
 // found in the LICENSE file.
 
 #include <limits>
-#include <string>
 
 #include "core/fpdfapi/parser/cpdf_object.h"
 #include "core/fpdfapi/parser/cpdf_parser.h"
diff --git a/core/fpdfapi/parser/fpdf_parser_decode_embeddertest.cpp b/core/fpdfapi/parser/fpdf_parser_decode_embeddertest.cpp
index a538b24..3b1160e 100644
--- a/core/fpdfapi/parser/fpdf_parser_decode_embeddertest.cpp
+++ b/core/fpdfapi/parser/fpdf_parser_decode_embeddertest.cpp
@@ -4,7 +4,6 @@
 
 #include <cstring>
 #include <memory>
-#include <string>
 
 #include "build/build_config.h"
 #include "core/fpdfapi/parser/fpdf_parser_decode.h"
diff --git a/core/fpdfapi/render/cpdf_type3cache.cpp b/core/fpdfapi/render/cpdf_type3cache.cpp
index f5654e5..1ac5159 100644
--- a/core/fpdfapi/render/cpdf_type3cache.cpp
+++ b/core/fpdfapi/render/cpdf_type3cache.cpp
@@ -6,7 +6,6 @@
 
 #include "core/fpdfapi/render/cpdf_type3cache.h"
 
-#include <map>
 #include <memory>
 #include <utility>
 
diff --git a/core/fpdfapi/render/cpdf_type3glyphmap.cpp b/core/fpdfapi/render/cpdf_type3glyphmap.cpp
index fb9000f..ad81c0c 100644
--- a/core/fpdfapi/render/cpdf_type3glyphmap.cpp
+++ b/core/fpdfapi/render/cpdf_type3glyphmap.cpp
@@ -7,7 +7,6 @@
 #include "core/fpdfapi/render/cpdf_type3glyphmap.h"
 
 #include <algorithm>
-#include <map>
 #include <utility>
 
 #include "core/fxge/cfx_glyphbitmap.h"
diff --git a/core/fpdfdoc/cpdf_filespec.cpp b/core/fpdfdoc/cpdf_filespec.cpp
index f63ffe7..dd186a2 100644
--- a/core/fpdfdoc/cpdf_filespec.cpp
+++ b/core/fpdfdoc/cpdf_filespec.cpp
@@ -6,8 +6,6 @@
 
 #include "core/fpdfdoc/cpdf_filespec.h"
 
-#include <vector>
-
 #include "build/build_config.h"
 #include "constants/stream_dict_common.h"
 #include "core/fpdfapi/parser/cpdf_dictionary.h"
diff --git a/core/fxcodec/jbig2/JBig2_HuffmanTable.cpp b/core/fxcodec/jbig2/JBig2_HuffmanTable.cpp
index f440a46..f51ba3d 100644
--- a/core/fxcodec/jbig2/JBig2_HuffmanTable.cpp
+++ b/core/fxcodec/jbig2/JBig2_HuffmanTable.cpp
@@ -7,7 +7,6 @@
 #include "core/fxcodec/jbig2/JBig2_HuffmanTable.h"
 
 #include <limits>
-#include <vector>
 
 #include "core/fxcodec/jbig2/JBig2_BitStream.h"
 #include "core/fxcodec/jbig2/JBig2_Context.h"
diff --git a/core/fxcodec/jpx/cjpx_decoder.h b/core/fxcodec/jpx/cjpx_decoder.h
index 053de7b..fbbc3ac 100644
--- a/core/fxcodec/jpx/cjpx_decoder.h
+++ b/core/fxcodec/jpx/cjpx_decoder.h
@@ -8,7 +8,6 @@
 #define CORE_FXCODEC_JPX_CJPX_DECODER_H_
 
 #include <memory>
-#include <vector>
 
 #include "core/fxcrt/unowned_ptr.h"
 #include "third_party/base/span.h"
diff --git a/core/fxcrt/cfx_seekablestreamproxy_unittest.cpp b/core/fxcrt/cfx_seekablestreamproxy_unittest.cpp
index 2acb520..193258a 100644
--- a/core/fxcrt/cfx_seekablestreamproxy_unittest.cpp
+++ b/core/fxcrt/cfx_seekablestreamproxy_unittest.cpp
@@ -5,7 +5,6 @@
 #include "core/fxcrt/cfx_seekablestreamproxy.h"
 
 #include <memory>
-#include <vector>
 
 #include "core/fxcrt/cfx_readonlymemorystream.h"
 #include "core/fxcrt/retain_ptr.h"
diff --git a/core/fxcrt/fx_stream.cpp b/core/fxcrt/fx_stream.cpp
index 9373cd3..cf3b840 100644
--- a/core/fxcrt/fx_stream.cpp
+++ b/core/fxcrt/fx_stream.cpp
@@ -9,7 +9,6 @@
 #include <algorithm>
 #include <memory>
 #include <utility>
-#include <vector>
 
 #include "build/build_config.h"
 #include "core/fxcrt/fileaccess_iface.h"
diff --git a/core/fxcrt/fx_string.cpp b/core/fxcrt/fx_string.cpp
index 4ff16ea..7917733 100644
--- a/core/fxcrt/fx_string.cpp
+++ b/core/fxcrt/fx_string.cpp
@@ -7,7 +7,6 @@
 #include "core/fxcrt/fx_string.h"
 
 #include <limits>
-#include <vector>
 
 #include "core/fxcrt/cfx_utf8decoder.h"
 #include "core/fxcrt/cfx_utf8encoder.h"
diff --git a/core/fxcrt/unowned_ptr_unittest.cpp b/core/fxcrt/unowned_ptr_unittest.cpp
index 26fc542..e24a0b2 100644
--- a/core/fxcrt/unowned_ptr_unittest.cpp
+++ b/core/fxcrt/unowned_ptr_unittest.cpp
@@ -5,7 +5,6 @@
 #include "core/fxcrt/unowned_ptr.h"
 
 #include <utility>
-#include <vector>
 
 #include "testing/gtest/include/gtest/gtest.h"
 
diff --git a/core/fxge/cfx_glyphbitmap.h b/core/fxge/cfx_glyphbitmap.h
index 81a0547..cd7cf60 100644
--- a/core/fxge/cfx_glyphbitmap.h
+++ b/core/fxge/cfx_glyphbitmap.h
@@ -7,8 +7,6 @@
 #ifndef CORE_FXGE_CFX_GLYPHBITMAP_H_
 #define CORE_FXGE_CFX_GLYPHBITMAP_H_
 
-#include <vector>
-
 #include "core/fxcrt/retain_ptr.h"
 
 class CFX_DIBitmap;
diff --git a/fpdfsdk/cpdfsdk_interactiveform.cpp b/fpdfsdk/cpdfsdk_interactiveform.cpp
index 4bc4951..c9e9475 100644
--- a/fpdfsdk/cpdfsdk_interactiveform.cpp
+++ b/fpdfsdk/cpdfsdk_interactiveform.cpp
@@ -9,7 +9,6 @@
 #include <algorithm>
 #include <memory>
 #include <sstream>
-#include <string>
 #include <utility>
 #include <vector>
 
diff --git a/fpdfsdk/cpdfsdk_widgethandler.cpp b/fpdfsdk/cpdfsdk_widgethandler.cpp
index 8e1b0bd..c6f9e32 100644
--- a/fpdfsdk/cpdfsdk_widgethandler.cpp
+++ b/fpdfsdk/cpdfsdk_widgethandler.cpp
@@ -7,7 +7,6 @@
 #include "fpdfsdk/cpdfsdk_widgethandler.h"
 
 #include <memory>
-#include <vector>
 
 #include "constants/access_permissions.h"
 #include "constants/form_flags.h"
diff --git a/fpdfsdk/fpdf_doc_embeddertest.cpp b/fpdfsdk/fpdf_doc_embeddertest.cpp
index fc54344..55eb52f 100644
--- a/fpdfsdk/fpdf_doc_embeddertest.cpp
+++ b/fpdfsdk/fpdf_doc_embeddertest.cpp
@@ -4,7 +4,6 @@
 
 #include <memory>
 #include <set>
-#include <string>
 #include <vector>
 
 #include "core/fpdfapi/parser/cpdf_document.h"
diff --git a/fpdfsdk/fpdf_editpath.cpp b/fpdfsdk/fpdf_editpath.cpp
index b311869..7e3048b 100644
--- a/fpdfsdk/fpdf_editpath.cpp
+++ b/fpdfsdk/fpdf_editpath.cpp
@@ -6,7 +6,6 @@
 
 #include <memory>
 #include <utility>
-#include <vector>
 
 #include "core/fpdfapi/page/cpdf_path.h"
 #include "core/fpdfapi/page/cpdf_pathobject.h"
diff --git a/fpdfsdk/fpdf_formfill.cpp b/fpdfsdk/fpdf_formfill.cpp
index 7f10251..a1a74b9 100644
--- a/fpdfsdk/fpdf_formfill.cpp
+++ b/fpdfsdk/fpdf_formfill.cpp
@@ -8,7 +8,6 @@
 
 #include <memory>
 #include <utility>
-#include <vector>
 
 #include "core/fpdfapi/page/cpdf_annotcontext.h"
 #include "core/fpdfapi/page/cpdf_occontext.h"
diff --git a/fpdfsdk/fpdf_formfill_embeddertest.cpp b/fpdfsdk/fpdf_formfill_embeddertest.cpp
index 12c303b..eaadb27 100644
--- a/fpdfsdk/fpdf_formfill_embeddertest.cpp
+++ b/fpdfsdk/fpdf_formfill_embeddertest.cpp
@@ -3,7 +3,6 @@
 // found in the LICENSE file.
 
 #include <memory>
-#include <string>
 #include <vector>
 
 #include "build/build_config.h"
diff --git a/fpdfsdk/fpdf_javascript_embeddertest.cpp b/fpdfsdk/fpdf_javascript_embeddertest.cpp
index 35deb69..8ffc2d9 100644
--- a/fpdfsdk/fpdf_javascript_embeddertest.cpp
+++ b/fpdfsdk/fpdf_javascript_embeddertest.cpp
@@ -3,7 +3,6 @@
 // found in the LICENSE file.
 
 #include <memory>
-#include <string>
 #include <vector>
 
 #include "core/fxcrt/fx_memory.h"
diff --git a/fpdfsdk/fpdf_thumbnail.cpp b/fpdfsdk/fpdf_thumbnail.cpp
index 5c22c8c..df56f1f 100644
--- a/fpdfsdk/fpdf_thumbnail.cpp
+++ b/fpdfsdk/fpdf_thumbnail.cpp
@@ -4,8 +4,6 @@
 
 #include "public/fpdf_thumbnail.h"
 
-#include <vector>
-
 #include "core/fpdfapi/page/cpdf_dib.h"
 #include "core/fpdfapi/page/cpdf_page.h"
 #include "core/fpdfapi/parser/cpdf_dictionary.h"
diff --git a/fpdfsdk/fpdf_transformpage.cpp b/fpdfsdk/fpdf_transformpage.cpp
index 1d6712e..8e18086 100644
--- a/fpdfsdk/fpdf_transformpage.cpp
+++ b/fpdfsdk/fpdf_transformpage.cpp
@@ -8,7 +8,6 @@
 
 #include <memory>
 #include <sstream>
-#include <vector>
 
 #include "constants/page_object.h"
 #include "core/fpdfapi/edit/cpdf_contentstream_write_utils.h"
diff --git a/fpdfsdk/pwl/cpwl_edit.cpp b/fpdfsdk/pwl/cpwl_edit.cpp
index 9c24875..3d8e61d 100644
--- a/fpdfsdk/pwl/cpwl_edit.cpp
+++ b/fpdfsdk/pwl/cpwl_edit.cpp
@@ -10,7 +10,6 @@
 #include <memory>
 #include <sstream>
 #include <utility>
-#include <vector>
 
 #include "core/fpdfapi/font/cpdf_font.h"
 #include "core/fpdfdoc/cpvt_word.h"
diff --git a/fpdfsdk/pwl/cpwl_wnd.cpp b/fpdfsdk/pwl/cpwl_wnd.cpp
index 1b808dd..28bade8 100644
--- a/fpdfsdk/pwl/cpwl_wnd.cpp
+++ b/fpdfsdk/pwl/cpwl_wnd.cpp
@@ -6,7 +6,6 @@
 
 #include "fpdfsdk/pwl/cpwl_wnd.h"
 
-#include <map>
 #include <sstream>
 #include <utility>
 #include <vector>
diff --git a/fxbarcode/datamatrix/BC_HighLevelEncoder.h b/fxbarcode/datamatrix/BC_HighLevelEncoder.h
index 14f64e2..219146f 100644
--- a/fxbarcode/datamatrix/BC_HighLevelEncoder.h
+++ b/fxbarcode/datamatrix/BC_HighLevelEncoder.h
@@ -7,8 +7,6 @@
 #ifndef FXBARCODE_DATAMATRIX_BC_HIGHLEVELENCODER_H_
 #define FXBARCODE_DATAMATRIX_BC_HIGHLEVELENCODER_H_
 
-#include <vector>
-
 #include "core/fxcrt/widestring.h"
 
 class CBC_HighLevelEncoder {
diff --git a/fxjs/cfxjs_engine.cpp b/fxjs/cfxjs_engine.cpp
index b1528cd..cb0cede 100644
--- a/fxjs/cfxjs_engine.cpp
+++ b/fxjs/cfxjs_engine.cpp
@@ -8,7 +8,6 @@
 
 #include <memory>
 #include <utility>
-#include <vector>
 
 #include "core/fxcrt/unowned_ptr.h"
 #include "fxjs/cjs_object.h"
diff --git a/fxjs/cjs_global.cpp b/fxjs/cjs_global.cpp
index 85b8b8f..a45ccea 100644
--- a/fxjs/cjs_global.cpp
+++ b/fxjs/cjs_global.cpp
@@ -6,7 +6,6 @@
 
 #include "fxjs/cjs_global.h"
 
-#include <map>
 #include <memory>
 #include <utility>
 #include <vector>
diff --git a/fxjs/xfa/cfxjse_formcalc_context.cpp b/fxjs/xfa/cfxjse_formcalc_context.cpp
index 0c0cf38..d93f3b7 100644
--- a/fxjs/xfa/cfxjse_formcalc_context.cpp
+++ b/fxjs/xfa/cfxjse_formcalc_context.cpp
@@ -8,7 +8,6 @@
 
 #include <algorithm>
 #include <cstdlib>
-#include <string>
 #include <utility>
 
 #include "core/fxcrt/cfx_widetextbuf.h"
diff --git a/testing/embedder_test.cpp b/testing/embedder_test.cpp
index 9dd001f..c3e7192 100644
--- a/testing/embedder_test.cpp
+++ b/testing/embedder_test.cpp
@@ -6,8 +6,6 @@
 
 #include <limits.h>
 
-#include <list>
-#include <map>
 #include <memory>
 #include <string>
 #include <utility>
diff --git a/testing/fake_file_access.cpp b/testing/fake_file_access.cpp
index 26422ed..068448d 100644
--- a/testing/fake_file_access.cpp
+++ b/testing/fake_file_access.cpp
@@ -7,7 +7,6 @@
 #include <algorithm>
 #include <set>
 #include <utility>
-#include <vector>
 
 #include "core/fxcrt/fx_system.h"
 
diff --git a/testing/fuzzers/pdf_fx_date_helpers_fuzzer.cc b/testing/fuzzers/pdf_fx_date_helpers_fuzzer.cc
index e31decc..3739f4e 100644
--- a/testing/fuzzers/pdf_fx_date_helpers_fuzzer.cc
+++ b/testing/fuzzers/pdf_fx_date_helpers_fuzzer.cc
@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include <string>
-
 #include "core/fxcrt/widestring.h"
 #include "fxjs/fx_date_helpers.h"
 
diff --git a/testing/fuzzers/pdf_jpx_fuzzer.cc b/testing/fuzzers/pdf_jpx_fuzzer.cc
index 7053de8..e880802 100644
--- a/testing/fuzzers/pdf_jpx_fuzzer.cc
+++ b/testing/fuzzers/pdf_jpx_fuzzer.cc
@@ -4,7 +4,6 @@
 
 #include <cstdint>
 #include <memory>
-#include <vector>
 
 #include "core/fpdfapi/page/cpdf_colorspace.h"
 #include "core/fxcodec/jpx/cjpx_decoder.h"
diff --git a/xfa/fgas/layout/fx_arabic.cpp b/xfa/fgas/layout/fx_arabic.cpp
index af0bd69..715f168 100644
--- a/xfa/fgas/layout/fx_arabic.cpp
+++ b/xfa/fgas/layout/fx_arabic.cpp
@@ -7,7 +7,6 @@
 #include "xfa/fgas/layout/fx_arabic.h"
 
 #include <algorithm>
-#include <vector>
 
 #include "core/fxcrt/fx_unicode.h"
 #include "third_party/base/stl_util.h"
diff --git a/xfa/fwl/cfwl_checkbox.cpp b/xfa/fwl/cfwl_checkbox.cpp
index f434add..c31cb4d 100644
--- a/xfa/fwl/cfwl_checkbox.cpp
+++ b/xfa/fwl/cfwl_checkbox.cpp
@@ -9,7 +9,6 @@
 #include <algorithm>
 #include <memory>
 #include <utility>
-#include <vector>
 
 #include "xfa/fde/cfde_textout.h"
 #include "xfa/fwl/cfwl_app.h"
diff --git a/xfa/fwl/cfwl_notedriver.h b/xfa/fwl/cfwl_notedriver.h
index 1de761b..a519d19 100644
--- a/xfa/fwl/cfwl_notedriver.h
+++ b/xfa/fwl/cfwl_notedriver.h
@@ -9,7 +9,6 @@
 
 #include <map>
 #include <memory>
-#include <vector>
 
 #include "core/fxcrt/unowned_ptr.h"
 #include "xfa/fwl/cfwl_event.h"
diff --git a/xfa/fwl/cfwl_widgetmgr.h b/xfa/fwl/cfwl_widgetmgr.h
index a401e22..bc3b113 100644
--- a/xfa/fwl/cfwl_widgetmgr.h
+++ b/xfa/fwl/cfwl_widgetmgr.h
@@ -9,7 +9,6 @@
 
 #include <map>
 #include <memory>
-#include <vector>
 
 #include "core/fxcrt/fx_system.h"
 #include "xfa/fxgraphics/cxfa_graphics.h"
diff --git a/xfa/fxfa/cxfa_ffapp.cpp b/xfa/fxfa/cxfa_ffapp.cpp
index a9fe4e0..b5d9daa 100644
--- a/xfa/fxfa/cxfa_ffapp.cpp
+++ b/xfa/fxfa/cxfa_ffapp.cpp
@@ -9,7 +9,6 @@
 #include <algorithm>
 #include <memory>
 #include <utility>
-#include <vector>
 
 #include "xfa/fgas/font/cfgas_fontmgr.h"
 #include "xfa/fwl/cfwl_notedriver.h"
diff --git a/xfa/fxfa/cxfa_ffdoc.cpp b/xfa/fxfa/cxfa_ffdoc.cpp
index 631bfee..78c6d20 100644
--- a/xfa/fxfa/cxfa_ffdoc.cpp
+++ b/xfa/fxfa/cxfa_ffdoc.cpp
@@ -8,7 +8,6 @@
 
 #include <algorithm>
 #include <memory>
-#include <vector>
 
 #include "core/fpdfapi/parser/cpdf_dictionary.h"
 #include "core/fpdfapi/parser/cpdf_document.h"
diff --git a/xfa/fxfa/cxfa_ffwidget.cpp b/xfa/fxfa/cxfa_ffwidget.cpp
index a868f6f..9f578e9 100644
--- a/xfa/fxfa/cxfa_ffwidget.cpp
+++ b/xfa/fxfa/cxfa_ffwidget.cpp
@@ -10,7 +10,6 @@
 #include <cmath>
 #include <memory>
 #include <utility>
-#include <vector>
 
 #include "core/fxcodec/fx_codec.h"
 #include "core/fxcodec/progressive_decoder.h"
diff --git a/xfa/fxfa/cxfa_ffwidgethandler.cpp b/xfa/fxfa/cxfa_ffwidgethandler.cpp
index 79015a2..998f8d2 100644
--- a/xfa/fxfa/cxfa_ffwidgethandler.cpp
+++ b/xfa/fxfa/cxfa_ffwidgethandler.cpp
@@ -6,8 +6,6 @@
 
 #include "xfa/fxfa/cxfa_ffwidgethandler.h"
 
-#include <vector>
-
 #include "fxjs/xfa/cjx_object.h"
 #include "xfa/fxfa/cxfa_ffdoc.h"
 #include "xfa/fxfa/cxfa_ffdocview.h"
diff --git a/xfa/fxfa/cxfa_textparser.cpp b/xfa/fxfa/cxfa_textparser.cpp
index fd3bfe6..9ba21cc 100644
--- a/xfa/fxfa/cxfa_textparser.cpp
+++ b/xfa/fxfa/cxfa_textparser.cpp
@@ -8,7 +8,6 @@
 
 #include <algorithm>
 #include <utility>
-#include <vector>
 
 #include "core/fxcrt/css/cfx_css.h"
 #include "core/fxcrt/css/cfx_csscomputedstyle.h"
diff --git a/xfa/fxfa/cxfa_textprovider.cpp b/xfa/fxfa/cxfa_textprovider.cpp
index 7a17037..97523de 100644
--- a/xfa/fxfa/cxfa_textprovider.cpp
+++ b/xfa/fxfa/cxfa_textprovider.cpp
@@ -8,7 +8,6 @@
 
 #include <algorithm>
 #include <memory>
-#include <vector>
 
 #include "core/fxcrt/xml/cfx_xmlelement.h"
 #include "core/fxcrt/xml/cfx_xmlnode.h"
diff --git a/xfa/fxfa/fm2js/cxfa_fmparser_unittest.cpp b/xfa/fxfa/fm2js/cxfa_fmparser_unittest.cpp
index 526a5da..50fa577 100644
--- a/xfa/fxfa/fm2js/cxfa_fmparser_unittest.cpp
+++ b/xfa/fxfa/fm2js/cxfa_fmparser_unittest.cpp
@@ -4,8 +4,6 @@
 
 #include "xfa/fxfa/fm2js/cxfa_fmparser.h"
 
-#include <vector>
-
 #include "core/fxcrt/cfx_widetextbuf.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "xfa/fxfa/fm2js/cxfa_fmtojavascriptdepth.h"
diff --git a/xfa/fxfa/parser/cxfa_nodehelper.h b/xfa/fxfa/parser/cxfa_nodehelper.h
index 66e7e66..27407f9 100644
--- a/xfa/fxfa/parser/cxfa_nodehelper.h
+++ b/xfa/fxfa/parser/cxfa_nodehelper.h
@@ -7,8 +7,6 @@
 #ifndef XFA_FXFA_PARSER_CXFA_NODEHELPER_H_
 #define XFA_FXFA_PARSER_CXFA_NODEHELPER_H_
 
-#include <vector>
-
 #include "core/fxcrt/fx_string.h"
 #include "xfa/fxfa/fxfa_basic.h"
 #include "xfa/fxfa/parser/xfa_resolvenode_rs.h"