Remove unused code.

BUILD.gn

 # Copyright 2016 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build_overrides/v8.gni")
 import("//testing/test.gni")
 import("pdfium.gni")
 
 config("pdfium_common_config") {
   cflags = []
@@ skipping 494 matching lines @@
     "core/fxcodec/codec/codec_int.h",
     "core/fxcodec/codec/fx_codec.cpp",
     "core/fxcodec/codec/fx_codec_fax.cpp",
     "core/fxcodec/codec/fx_codec_flate.cpp",
     "core/fxcodec/codec/fx_codec_icc.cpp",
     "core/fxcodec/codec/fx_codec_jbig.cpp",
     "core/fxcodec/codec/fx_codec_jpeg.cpp",
     "core/fxcodec/codec/fx_codec_jpx_opj.cpp",
     "core/fxcodec/include/fx_codec.h",
     "core/fxcodec/include/fx_codec_def.h",
-    "core/fxcodec/include/fx_codec_flate.h",
     "core/fxcodec/jbig2/JBig2_ArithDecoder.cpp",
     "core/fxcodec/jbig2/JBig2_ArithDecoder.h",
     "core/fxcodec/jbig2/JBig2_ArithIntDecoder.cpp",
     "core/fxcodec/jbig2/JBig2_ArithIntDecoder.h",
     "core/fxcodec/jbig2/JBig2_BitStream.cpp",
     "core/fxcodec/jbig2/JBig2_BitStream.h",
     "core/fxcodec/jbig2/JBig2_Context.cpp",
     "core/fxcodec/jbig2/JBig2_Context.h",
     "core/fxcodec/jbig2/JBig2_Define.h",
     "core/fxcodec/jbig2/JBig2_GrdProc.cpp",
@@ skipping 232 matching lines @@
     "fpdfsdk/pdfwindow/PWL_ComboBox.cpp",
     "fpdfsdk/pdfwindow/PWL_ComboBox.h",
     "fpdfsdk/pdfwindow/PWL_Edit.cpp",
     "fpdfsdk/pdfwindow/PWL_Edit.h",
     "fpdfsdk/pdfwindow/PWL_EditCtrl.cpp",
     "fpdfsdk/pdfwindow/PWL_EditCtrl.h",
     "fpdfsdk/pdfwindow/PWL_FontMap.cpp",
     "fpdfsdk/pdfwindow/PWL_FontMap.h",
     "fpdfsdk/pdfwindow/PWL_Icon.cpp",
     "fpdfsdk/pdfwindow/PWL_Icon.h",
-    "fpdfsdk/pdfwindow/PWL_IconList.cpp",
-    "fpdfsdk/pdfwindow/PWL_IconList.h",
-    "fpdfsdk/pdfwindow/PWL_Label.cpp",
-    "fpdfsdk/pdfwindow/PWL_Label.h",
     "fpdfsdk/pdfwindow/PWL_ListBox.cpp",
     "fpdfsdk/pdfwindow/PWL_ListBox.h",
-    "fpdfsdk/pdfwindow/PWL_ListCtrl.cpp",
-    "fpdfsdk/pdfwindow/PWL_ListCtrl.h",
     "fpdfsdk/pdfwindow/PWL_ScrollBar.cpp",
     "fpdfsdk/pdfwindow/PWL_ScrollBar.h",
-    "fpdfsdk/pdfwindow/PWL_Signature.cpp",
-    "fpdfsdk/pdfwindow/PWL_Signature.h",
     "fpdfsdk/pdfwindow/PWL_SpecialButton.cpp",
     "fpdfsdk/pdfwindow/PWL_SpecialButton.h",
     "fpdfsdk/pdfwindow/PWL_Utils.cpp",
     "fpdfsdk/pdfwindow/PWL_Utils.h",
     "fpdfsdk/pdfwindow/PWL_Wnd.cpp",
     "fpdfsdk/pdfwindow/PWL_Wnd.h",
   ]
   configs += [ ":pdfium_core_config" ]
 }
 
@@ skipping 281 matching lines @@
       "xfa/fwl/lightwidget/cfwl_datetimepicker.cpp",
       "xfa/fwl/lightwidget/cfwl_datetimepicker.h",
       "xfa/fwl/lightwidget/cfwl_edit.cpp",
       "xfa/fwl/lightwidget/cfwl_edit.h",
       "xfa/fwl/lightwidget/cfwl_listbox.cpp",
       "xfa/fwl/lightwidget/cfwl_listbox.h",
       "xfa/fwl/lightwidget/cfwl_picturebox.cpp",
       "xfa/fwl/lightwidget/cfwl_picturebox.h",
       "xfa/fwl/lightwidget/cfwl_pushbutton.cpp",
       "xfa/fwl/lightwidget/cfwl_pushbutton.h",
-      "xfa/fwl/lightwidget/cfwl_scrollbar.cpp",
-      "xfa/fwl/lightwidget/cfwl_scrollbar.h",
-      "xfa/fwl/lightwidget/cfwl_theme.cpp",
-      "xfa/fwl/lightwidget/cfwl_theme.h",
-      "xfa/fwl/lightwidget/cfwl_tooltip.cpp",
-      "xfa/fwl/lightwidget/cfwl_tooltip.h",
       "xfa/fwl/lightwidget/cfwl_widget.cpp",
       "xfa/fwl/lightwidget/cfwl_widget.h",
-      "xfa/fwl/lightwidget/cfwl_widgetdelegate.cpp",
-      "xfa/fwl/lightwidget/cfwl_widgetdelegate.h",
       "xfa/fwl/lightwidget/cfwl_widgetproperties.cpp",
       "xfa/fwl/lightwidget/cfwl_widgetproperties.h",
       "xfa/fwl/theme/cfwl_barcodetp.cpp",
       "xfa/fwl/theme/cfwl_barcodetp.h",
       "xfa/fwl/theme/cfwl_carettp.cpp",
       "xfa/fwl/theme/cfwl_carettp.h",
       "xfa/fwl/theme/cfwl_checkboxtp.cpp",
       "xfa/fwl/theme/cfwl_checkboxtp.h",
       "xfa/fwl/theme/cfwl_comboboxtp.cpp",
       "xfa/fwl/theme/cfwl_comboboxtp.h",
       "xfa/fwl/theme/cfwl_datetimepickedtp.cpp",
       "xfa/fwl/theme/cfwl_datetimepickertp.h",
       "xfa/fwl/theme/cfwl_edittp.cpp",
       "xfa/fwl/theme/cfwl_edittp.h",
-      "xfa/fwl/theme/cfwl_formtp.cpp",
-      "xfa/fwl/theme/cfwl_formtp.h",
       "xfa/fwl/theme/cfwl_listboxtp.cpp",
       "xfa/fwl/theme/cfwl_listboxtp.h",
       "xfa/fwl/theme/cfwl_monthcalendartp.cpp",
       "xfa/fwl/theme/cfwl_monthcalendartp.h",
       "xfa/fwl/theme/cfwl_pictureboxtp.cpp",
       "xfa/fwl/theme/cfwl_pictureboxtp.h",
       "xfa/fwl/theme/cfwl_pushbuttontp.cpp",
       "xfa/fwl/theme/cfwl_pushbuttontp.h",
       "xfa/fwl/theme/cfwl_scrollbartp.cpp",
       "xfa/fwl/theme/cfwl_scrollbartp.h",
       "xfa/fwl/theme/cfwl_utils.h",
       "xfa/fwl/theme/cfwl_widgettp.cpp",
       "xfa/fwl/theme/cfwl_widgettp.h",
       "xfa/fxbarcode/BC_Dimension.cpp",
       "xfa/fxbarcode/BC_Dimension.h",
       "xfa/fxbarcode/BC_Library.cpp",
-      "xfa/fxbarcode/BC_ResultPoint.cpp",
-      "xfa/fxbarcode/BC_ResultPoint.h",
       "xfa/fxbarcode/BC_TwoDimWriter.cpp",
       "xfa/fxbarcode/BC_TwoDimWriter.h",
       "xfa/fxbarcode/BC_UtilCodingConvert.cpp",
       "xfa/fxbarcode/BC_UtilCodingConvert.h",
       "xfa/fxbarcode/BC_Utils.cpp",
       "xfa/fxbarcode/BC_Writer.cpp",
       "xfa/fxbarcode/BC_Writer.h",
       "xfa/fxbarcode/cbc_codabar.cpp",
       "xfa/fxbarcode/cbc_codabar.h",
       "xfa/fxbarcode/cbc_code128.cpp",
@@ skipping 13 matching lines @@
       "xfa/fxbarcode/cbc_pdf417i.cpp",
       "xfa/fxbarcode/cbc_pdf417i.h",
       "xfa/fxbarcode/cbc_qrcode.cpp",
       "xfa/fxbarcode/cbc_qrcode.h",
       "xfa/fxbarcode/cbc_upca.cpp",
       "xfa/fxbarcode/cbc_upca.h",
       "xfa/fxbarcode/common/BC_CommonBitArray.cpp",
       "xfa/fxbarcode/common/BC_CommonBitArray.h",
       "xfa/fxbarcode/common/BC_CommonBitMatrix.cpp",
       "xfa/fxbarcode/common/BC_CommonBitMatrix.h",
-      "xfa/fxbarcode/common/BC_CommonBitSource.cpp",
-      "xfa/fxbarcode/common/BC_CommonBitSource.h",
       "xfa/fxbarcode/common/BC_CommonByteArray.cpp",
       "xfa/fxbarcode/common/BC_CommonByteArray.h",
       "xfa/fxbarcode/common/BC_CommonByteMatrix.cpp",
       "xfa/fxbarcode/common/BC_CommonByteMatrix.h",
-      "xfa/fxbarcode/common/BC_CommonPerspectiveTransform.cpp",
-      "xfa/fxbarcode/common/BC_CommonPerspectiveTransform.h",
       "xfa/fxbarcode/common/reedsolomon/BC_ReedSolomon.cpp",
       "xfa/fxbarcode/common/reedsolomon/BC_ReedSolomon.h",
       "xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.cpp",
       "xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h",
       "xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256Poly.cpp",
       "xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256Poly.h",
       "xfa/fxbarcode/datamatrix/BC_ASCIIEncoder.cpp",
       "xfa/fxbarcode/datamatrix/BC_ASCIIEncoder.h",
       "xfa/fxbarcode/datamatrix/BC_Base256Encoder.cpp",
       "xfa/fxbarcode/datamatrix/BC_Base256Encoder.h",
@@ skipping 37 matching lines @@
       "xfa/fxbarcode/oned/BC_OnedEAN8Writer.cpp",
       "xfa/fxbarcode/oned/BC_OnedEAN8Writer.h",
       "xfa/fxbarcode/oned/BC_OnedUPCAWriter.cpp",
       "xfa/fxbarcode/oned/BC_OnedUPCAWriter.h",
       "xfa/fxbarcode/pdf417/BC_PDF417.cpp",
       "xfa/fxbarcode/pdf417/BC_PDF417.h",
       "xfa/fxbarcode/pdf417/BC_PDF417BarcodeMatrix.cpp",
       "xfa/fxbarcode/pdf417/BC_PDF417BarcodeMatrix.h",
       "xfa/fxbarcode/pdf417/BC_PDF417BarcodeRow.cpp",
       "xfa/fxbarcode/pdf417/BC_PDF417BarcodeRow.h",
-      "xfa/fxbarcode/pdf417/BC_PDF417Codeword.cpp",
-      "xfa/fxbarcode/pdf417/BC_PDF417Codeword.h",
       "xfa/fxbarcode/pdf417/BC_PDF417Compaction.cpp",
       "xfa/fxbarcode/pdf417/BC_PDF417Compaction.h",
       "xfa/fxbarcode/pdf417/BC_PDF417ErrorCorrection.cpp",
       "xfa/fxbarcode/pdf417/BC_PDF417ErrorCorrection.h",
       "xfa/fxbarcode/pdf417/BC_PDF417HighLevelEncoder.cpp",
       "xfa/fxbarcode/pdf417/BC_PDF417HighLevelEncoder.h",
       "xfa/fxbarcode/pdf417/BC_PDF417Writer.cpp",
       "xfa/fxbarcode/pdf417/BC_PDF417Writer.h",
       "xfa/fxbarcode/qrcode/BC_QRCodeWriter.cpp",
       "xfa/fxbarcode/qrcode/BC_QRCodeWriter.h",
@@ skipping 352 matching lines @@
 }
 
 if (pdf_is_standalone) {
   source_set("samples") {
     testonly = true
     deps = [
       "//samples",
     ]
   }
 }