Fix ALL the include guards.

Get rid of leading _CAPITAL identifiers.
A large number of these didn't actually match the filename.

R=thestig@chromium.org

Review URL: https://codereview.chromium.org/1160443004

90 files changed, 454 insertions, 315 deletions

diff --git a/core/include/fdrm/fx_crypt.h b/core/include/fdrm/fx_crypt.h
index adbdf8fa23..7bd69defdf 100644
--- a/core/include/fdrm/fx_crypt.h
+++ b/core/include/fdrm/fx_crypt.h
@@ -4,8 +4,8 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef FX_CRYPT_H_
-#define FX_CRYPT_H_
+#ifndef CORE_INCLUDE_FDRM_FX_CRYPT_H_
+#define CORE_INCLUDE_FDRM_FX_CRYPT_H_
 
 #include "../fxcrt/fx_basic.h"
 
@@ -46,4 +46,4 @@ void CRYPT_SetPubKeyDecryptor(FX_BOOL (*func)(FX_LPCBYTE pData, FX_DWORD size, F
 };
 #endif
 
-#endif  // FX_CRYPT_H_
+#endif  // CORE_INCLUDE_FDRM_FX_CRYPT_H_
diff --git a/core/include/fpdfapi/fpdf_module.h b/core/include/fpdfapi/fpdf_module.h
index 9b3a5bf7dc..6317cd0b18 100644
--- a/core/include/fpdfapi/fpdf_module.h
+++ b/core/include/fpdfapi/fpdf_module.h
@@ -4,11 +4,11 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FPDF_MODULE_
-#define _FPDF_MODULE_
-#ifndef _FXCRT_EXTENSION_
+#ifndef CORE_INCLUDE_FPDFAPI_FPDF_MODULE_H_
+#define CORE_INCLUDE_FPDFAPI_FPDF_MODULE_H_
+
 #include "../fxcrt/fx_ext.h"
-#endif
+
 class CPDF_ModuleMgr;
 class CPDF_PageModuleDef;
 class CPDF_RenderModuleDef;
@@ -193,4 +193,5 @@ public:
         return NULL;
     }
 };
-#endif
+
+#endif  // CORE_INCLUDE_FPDFAPI_FPDF_MODULE_H_
diff --git a/core/include/fpdfapi/fpdf_objects.h b/core/include/fpdfapi/fpdf_objects.h
index b3980a4f0f..69f344cf9c 100644
--- a/core/include/fpdfapi/fpdf_objects.h
+++ b/core/include/fpdfapi/fpdf_objects.h
@@ -4,11 +4,11 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FPDF_OBJECTS_
-#define _FPDF_OBJECTS_
-#ifndef _FXCRT_EXTENSION_
+#ifndef CORE_INCLUDE_FPDFAPI_FPDF_OBJECTS_H_
+#define CORE_INCLUDE_FPDFAPI_FPDF_OBJECTS_H_
+
 #include "../fxcrt/fx_ext.h"
-#endif
+
 class CPDF_Document;
 class CPDF_IndirectObjects;
 class CPDF_Null;
@@ -742,4 +742,5 @@ protected:
 
     FX_DWORD				m_LastObjNum;
 };
-#endif
+
+#endif  // CORE_INCLUDE_FPDFAPI_FPDF_OBJECTS_H_
diff --git a/core/include/fpdfapi/fpdf_page.h b/core/include/fpdfapi/fpdf_page.h
index 0bac0595c2..d549b7713a 100644
--- a/core/include/fpdfapi/fpdf_page.h
+++ b/core/include/fpdfapi/fpdf_page.h
@@ -4,17 +4,13 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FPDF_PAGE_
-#define _FPDF_PAGE_
-#ifndef _FPDF_PARSER_
+#ifndef CORE_INCLUDE_FPDFAPI_FPDF_PAGE_H_
+#define CORE_INCLUDE_FPDFAPI_FPDF_PAGE_H_
+
+#include "../fxge/fx_dib.h"
 #include "fpdf_parser.h"
-#endif
-#ifndef _FPDF_RESOURCE_
 #include "fpdf_resource.h"
-#endif
-#ifndef _FX_DIB_H_
-#include "../fxge/fx_dib.h"
-#endif
+
 class CPDF_PageObjects;
 class CPDF_Page;
 class CPDF_Form;
@@ -246,4 +242,5 @@ private:
     CPDF_Document*  m_pDocument;
     CFX_PtrArray    m_pageObjects;
 };
-#endif
+
+#endif  // CORE_INCLUDE_FPDFAPI_FPDF_PAGE_H_
diff --git a/core/include/fpdfapi/fpdf_pageobj.h b/core/include/fpdfapi/fpdf_pageobj.h
index e78c9bb8b2..1b53bdc859 100644
--- a/core/include/fpdfapi/fpdf_pageobj.h
+++ b/core/include/fpdfapi/fpdf_pageobj.h
@@ -4,14 +4,12 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FPDF_PAGEOBJ_H_
-#define _FPDF_PAGEOBJ_H_
-#ifndef _FPDF_RESOURCE_
-#include "fpdf_resource.h"
-#endif
-#ifndef _FX_GE_H_
+#ifndef CORE_INCLUDE_FPDFAPI_FPDF_PAGEOBJ_H_
+#define CORE_INCLUDE_FPDFAPI_FPDF_PAGEOBJ_H_
+
 #include "../fxge/fx_ge.h"
-#endif
+#include "fpdf_resource.h"
+
 class CPDF_Path;
 class CPDF_ClipPathData;
 class CPDF_ClipPath;
@@ -717,4 +715,5 @@ protected:
     virtual void		Transform(const CFX_AffineMatrix& matrix) {}
     virtual void		CopyData(const CPDF_PageObject* pSrcObjet) {}
 };
-#endif
+
+#endif  // CORE_INCLUDE_FPDFAPI_FPDF_PAGEOBJ_H_
diff --git a/core/include/fpdfapi/fpdf_parser.h b/core/include/fpdfapi/fpdf_parser.h
index 20766702e2..0dc9ca64a3 100644
--- a/core/include/fpdfapi/fpdf_parser.h
+++ b/core/include/fpdfapi/fpdf_parser.h
@@ -4,14 +4,12 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FPDF_PARSER_
-#define _FPDF_PARSER_
-#ifndef _FX_BASIC_H_
+#ifndef CORE_INCLUDE_FPDFAPI_FPDF_PARSER_H_
+#define CORE_INCLUDE_FPDFAPI_FPDF_PARSER_H_
+
 #include "../fxcrt/fx_ext.h"
-#endif
-#ifndef _FPDF_OBJECTS_
 #include "fpdf_objects.h"
-#endif
+
 class CPDF_Document;
 class IPDF_DocParser;
 class CPDF_Parser;
@@ -947,4 +945,5 @@ enum PDF_DATAAVAIL_STATUS {
     PDF_DATAAVAIL_LOADALLFILE,
     PDF_DATAAVAIL_TRAILER_APPEND
 };
-#endif
+
+#endif  // CORE_INCLUDE_FPDFAPI_FPDF_PARSER_H_
diff --git a/core/include/fpdfapi/fpdf_render.h b/core/include/fpdfapi/fpdf_render.h
index 2028550546..714fffba5c 100644
--- a/core/include/fpdfapi/fpdf_render.h
+++ b/core/include/fpdfapi/fpdf_render.h
@@ -4,14 +4,12 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FPDF_RENDER_
-#define _FPDF_RENDER_
-#ifndef _FPDF_PAGE_
-#include "fpdf_page.h"
-#endif
-#ifndef _FX_GE_H_
+#ifndef CORE_INCLUDE_FPDFAPI_FPDF_RENDER_H_
+#define CORE_INCLUDE_FPDFAPI_FPDF_RENDER_H_
+
 #include "../fxge/fx_ge.h"
-#endif
+#include "fpdf_page.h"
+
 class CPDF_RenderContext;
 class CPDF_RenderOptions;
 class CPDF_ImageCache;
@@ -315,4 +313,5 @@ public:
     int					m_HalftoneLimit;
     int					m_RenderStepLimit;
 };
-#endif
+
+#endif  // CORE_INCLUDE_FPDFAPI_FPDF_RENDER_H_
diff --git a/core/include/fpdfapi/fpdf_resource.h b/core/include/fpdfapi/fpdf_resource.h
index 4a85096900..f1ea6b5a23 100644
--- a/core/include/fpdfapi/fpdf_resource.h
+++ b/core/include/fpdfapi/fpdf_resource.h
@@ -4,14 +4,12 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FPDF_RESOURCE_
-#define _FPDF_RESOURCE_
-#ifndef _FPDF_PARSER_
-#include "fpdf_parser.h"
-#endif
-#ifndef _FX_FONT_H_
+#ifndef CORE_INCLUDE_FPDFAPI_FPDF_RESOURCE_H_
+#define CORE_INCLUDE_FPDFAPI_FPDF_RESOURCE_H_
+
 #include "../fxge/fx_font.h"
-#endif
+#include "fpdf_parser.h"
+
 class CPDF_Font;
 class CPDF_Type1Font;
 class CPDF_TrueTypeFont;
@@ -946,4 +944,5 @@ private:
     CPDF_Dictionary*		m_pOC;
     CPDF_Dictionary*	InitJPEG(FX_LPBYTE pData, FX_DWORD size);
 };
-#endif
+
+#endif  // CORE_INCLUDE_FPDFAPI_FPDF_RESOURCE_H_
diff --git a/core/include/fpdfapi/fpdf_serial.h b/core/include/fpdfapi/fpdf_serial.h
index 50e5fbc346..fc55fa08a9 100644
--- a/core/include/fpdfapi/fpdf_serial.h
+++ b/core/include/fpdfapi/fpdf_serial.h
@@ -4,14 +4,12 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FPDF_SERIAL_
-#define _FPDF_SERIAL_
-#ifndef _FPDF_PAGE_
+#ifndef CORE_INCLUDE_FPDFAPI_FPDF_SERIAL_H_
+#define CORE_INCLUDE_FPDFAPI_FPDF_SERIAL_H_
+
 #include "fpdf_page.h"
-#endif
-#ifndef _FPDF_PAGEOBJ_H_
 #include "fpdf_pageobj.h"
-#endif
+
 class CPDF_ObjectStream;
 class CPDF_XRefStream;
 CFX_ByteTextBuf& operator << (CFX_ByteTextBuf& buf, const CPDF_Object* pObj);
@@ -202,4 +200,5 @@ protected:
     friend class CPDF_ObjectStream;
     friend class CPDF_XRefStream;
 };
-#endif
+
+#endif  // CORE_INCLUDE_FPDFAPI_FPDF_SERIAL_H_
diff --git a/core/include/fpdfapi/fpdfapi.h b/core/include/fpdfapi/fpdfapi.h
index a2f715d71b..e432823c7a 100644
--- a/core/include/fpdfapi/fpdfapi.h
+++ b/core/include/fpdfapi/fpdfapi.h
@@ -4,8 +4,8 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef FPDFAPI_H_
-#define FPDFAPI_H_
+#ifndef CORE_INCLUDE_FPDFAPI_FPDFAPI_H_
+#define CORE_INCLUDE_FPDFAPI_FPDFAPI_H_
 
 #include "../fxcrt/fx_basic.h"
 #include "../fxge/fx_ge.h"
@@ -14,4 +14,4 @@
 #include "fpdf_render.h"
 #include "fpdf_serial.h"
 
-#endif  // FPDFAPI_H_
+#endif  // CORE_INCLUDE_FPDFAPI_FPDFAPI_H_
diff --git a/core/include/fpdfdoc/fpdf_ap.h b/core/include/fpdfdoc/fpdf_ap.h
index 02bbf249c4..39daf028ac 100644
--- a/core/include/fpdfdoc/fpdf_ap.h
+++ b/core/include/fpdfdoc/fpdf_ap.h
@@ -4,12 +4,13 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FPDF_AP_H_
-#define _FPDF_AP_H_
+#ifndef CORE_INCLUDE_FPDFDOC_FPDF_AP_H_
+#define CORE_INCLUDE_FPDFDOC_FPDF_AP_H_
 
 #include "../fxcrt/fx_basic.h"
 #include "../fpdfapi/fpdf_parser.h"
 #include "fpdf_vt.h"
+
 class IPVT_FontMap
 {
 public:
@@ -92,4 +93,4 @@ public:
     static CFX_ByteString					GenerateColorAP(const CPVT_Color & color, const FX_BOOL & bFillOrStroke);
 };
 
-#endif  // _FPDF_AP_H_
+#endif  // CORE_INCLUDE_FPDFDOC_FPDF_AP_H_
diff --git a/core/include/fpdfdoc/fpdf_doc.h b/core/include/fpdfdoc/fpdf_doc.h
index 31480f90bc..715b79ef42 100644
--- a/core/include/fpdfdoc/fpdf_doc.h
+++ b/core/include/fpdfdoc/fpdf_doc.h
@@ -4,14 +4,12 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FPDF_DOC_H_
-#define _FPDF_DOC_H_
-#ifndef _FPDF_PARSER_
+#ifndef CORE_INCLUDE_FPDFDOC_FPDF_DOC_H_
+#define CORE_INCLUDE_FPDFDOC_FPDF_DOC_H_
+
 #include "../fpdfapi/fpdf_parser.h"
-#endif
-#ifndef _FPDF_RENDER_
 #include "../fpdfapi/fpdf_render.h"
-#endif
+
 class CPDF_Action;
 class CPDF_Annot;
 class CPDF_AnnotList;
@@ -1751,4 +1749,5 @@ protected:
     CPDF_Stream*			GetIcon(FX_BSTR csEntry);
     friend class			CPDF_FormControl;
 };
-#endif
+
+#endif  // CORE_INCLUDE_FPDFDOC_FPDF_DOC_H_
diff --git a/core/include/fpdfdoc/fpdf_tagged.h b/core/include/fpdfdoc/fpdf_tagged.h
index a5862e0a8f..2c40ac176d 100644
--- a/core/include/fpdfdoc/fpdf_tagged.h
+++ b/core/include/fpdfdoc/fpdf_tagged.h
@@ -4,8 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FPDF_TAGGED_H_
-#define _FPDF_TAGGED_H_
+#ifndef CORE_INCLUDE_FPDFDOC_FPDF_TAGGED_H_
+#define CORE_INCLUDE_FPDFDOC_FPDF_TAGGED_H_
+
 class CPDF_StructTree;
 class CPDF_StructElement;
 struct CPDF_StructKid;
@@ -97,4 +98,5 @@ public:
     virtual int					GetInteger(FX_BSTR owner, FX_BSTR name, int default_value, FX_BOOL bInheritable = FALSE, int subindex = -1) = 0;
 
 };
-#endif
+
+#endif  // CORE_INCLUDE_FPDFDOC_FPDF_TAGGED_H_
diff --git a/core/include/fpdfdoc/fpdf_vt.h b/core/include/fpdfdoc/fpdf_vt.h
index 18ea709bcf..87ef02576b 100644
--- a/core/include/fpdfdoc/fpdf_vt.h
+++ b/core/include/fpdfdoc/fpdf_vt.h
@@ -4,8 +4,8 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FPDF_VT_H_
-#define _FPDF_VT_H_
+#ifndef CORE_INCLUDE_FPDFDOC_FPDF_VT_H_
+#define CORE_INCLUDE_FPDFDOC_FPDF_VT_H_
 
 #include "../fpdfapi/fpdf_parser.h"
 #include "../fxcrt/fx_basic.h"
@@ -448,4 +448,5 @@ public:
 protected:
     ~IPDF_VariableText() { }
 };
-#endif
+
+#endif  // CORE_INCLUDE_FPDFDOC_FPDF_VT_H_
diff --git a/core/include/fpdftext/fpdf_text.h b/core/include/fpdftext/fpdf_text.h
index 8673c1aac1..936e0f1722 100644
--- a/core/include/fpdftext/fpdf_text.h
+++ b/core/include/fpdftext/fpdf_text.h
@@ -4,17 +4,13 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FPDF_TEXT_H_
-#define _FPDF_TEXT_H_
-#ifndef _FPDF_PARSER_
-#include "../fpdfapi/fpdf_parser.h"
-#endif
-#ifndef _FPDF_PAGEOBJ_H_
-#include "../fpdfapi/fpdf_pageobj.h"
-#endif
-#ifndef _FPDF_PAGE_
+#ifndef CORE_INCLUDE_FPDFTEXT_FPDF_TEXT_H_
+#define CORE_INCLUDE_FPDFTEXT_FPDF_TEXT_H_
+
 #include "../fpdfapi/fpdf_page.h"
-#endif
+#include "../fpdfapi/fpdf_pageobj.h"
+#include "../fpdfapi/fpdf_parser.h"
+
 class CPDF_PageObjects;
 #define PDF2TXT_AUTO_ROTATE		1
 #define PDF2TXT_AUTO_WIDTH		2
@@ -170,4 +166,5 @@ public:
 
     virtual void				GetRects(int index, CFX_RectArray& rects) const = 0;
 };
-#endif
+
+#endif  // CORE_INCLUDE_FPDFTEXT_FPDF_TEXT_H_
diff --git a/core/include/fxcodec/fx_codec.h b/core/include/fxcodec/fx_codec.h
index afa0627648..2d902c898b 100644
--- a/core/include/fxcodec/fx_codec.h
+++ b/core/include/fxcodec/fx_codec.h
@@ -4,13 +4,13 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FX_CODEC_H_
-#define _FX_CODEC_H_
-#ifndef _FXCRT_EXTENSION_
+#ifndef CORE_INCLUDE_FXCODEC_FX_CODEC_H_
+#define CORE_INCLUDE_FXCODEC_FX_CODEC_H_
+
 #include "../fxcrt/fx_ext.h"
-#endif
 #include "fx_codec_def.h"
 #include "fx_codec_provider.h"
+
 class CFX_DIBSource;
 class ICodec_ScanlineDecoder;
 class ICodec_BasicModule;
@@ -286,4 +286,5 @@ public:
 void AdobeCMYK_to_sRGB(FX_FLOAT c, FX_FLOAT m, FX_FLOAT y, FX_FLOAT k, FX_FLOAT& R, FX_FLOAT& G, FX_FLOAT& B);
 void AdobeCMYK_to_sRGB1(FX_BYTE c, FX_BYTE m, FX_BYTE y, FX_BYTE k, FX_BYTE& R, FX_BYTE& G, FX_BYTE& B);
 FX_BOOL MD5ComputeID(FX_LPCVOID buf, FX_DWORD dwSize, FX_BYTE ID[16]);
-#endif
+
+#endif  // CORE_INCLUDE_FXCODEC_FX_CODEC_H_
diff --git a/core/include/fxcodec/fx_codec_def.h b/core/include/fxcodec/fx_codec_def.h
index 497d4d8fa6..86c059b2e9 100644
--- a/core/include/fxcodec/fx_codec_def.h
+++ b/core/include/fxcodec/fx_codec_def.h
@@ -4,8 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FX_CODEC_DEF_H_
-#define _FX_CODEC_DEF_H_
+#ifndef CORE_INCLUDE_FXCODEC_FX_CODEC_DEF_H_
+#define CORE_INCLUDE_FXCODEC_FX_CODEC_DEF_H_
+
 enum FXCODEC_STATUS {
     FXCODEC_STATUS_ERROR = -1,
     FXCODEC_STATUS_FRAME_READY,
@@ -67,4 +68,5 @@ enum FXCODEC_STATUS {
 #define EXIFTAG_STRING_IAMGEDESCRIPTION		270
 #define EXIFTAG_STRING_DATETIME				306
 #define EXIFTAG_STRING_COPYRIGHT			33432
-#endif
+
+#endif  // CORE_INCLUDE_FXCODEC_FX_CODEC_DEF_H_
diff --git a/core/include/fxcodec/fx_codec_provider.h b/core/include/fxcodec/fx_codec_provider.h
index 53733e7b1d..6d15473ef7 100644
--- a/core/include/fxcodec/fx_codec_provider.h
+++ b/core/include/fxcodec/fx_codec_provider.h
@@ -4,8 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FX_CODEC_PROVIDER_H_
-#define _FX_CODEC_PROVIDER_H_
+#ifndef CORE_INCLUDE_FXCODEC_FX_CODEC_PROVIDER_H_
+#define CORE_INCLUDE_FXCODEC_FX_CODEC_PROVIDER_H_
+
 class IFX_JpegProvider
 {
 public:
@@ -52,4 +53,5 @@ public:
 protected:
     ~IFX_JpegProvider() { }
 };
-#endif
+
+#endif  // CORE_INCLUDE_FXCODEC_FX_CODEC_PROVIDER_H_
diff --git a/core/include/fxcrt/fx_arb.h b/core/include/fxcrt/fx_arb.h
index f173ee7f1f..ff86fa6cf7 100644
--- a/core/include/fxcrt/fx_arb.h
+++ b/core/include/fxcrt/fx_arb.h
@@ -4,8 +4,8 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FX_ARABIC_
-#define _FX_ARABIC_
+#ifndef CORE_INCLUDE_FXCRT_FX_ARB_H_
+#define CORE_INCLUDE_FXCRT_FX_ARB_H_
 
 #include "fx_system.h"
 
@@ -23,4 +23,5 @@ public:
 protected:
     ~IFX_BidiChar() { }
 };
-#endif
+
+#endif  // CORE_INCLUDE_FXCRT_FX_ARB_H_
diff --git a/core/include/fxcrt/fx_basic.h b/core/include/fxcrt/fx_basic.h
index f258029a11..0a5d4907b1 100644
--- a/core/include/fxcrt/fx_basic.h
+++ b/core/include/fxcrt/fx_basic.h
@@ -4,8 +4,8 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FX_BASIC_H_
-#define _FX_BASIC_H_
+#ifndef CORE_INCLUDE_FXCRT_FX_BASIC_H_
+#define CORE_INCLUDE_FXCRT_FX_BASIC_H_
 
 #include "fx_memory.h"
 #include "fx_stream.h"
@@ -1610,4 +1610,4 @@ public:
     FX_FLOAT i;
 };
 
-#endif
+#endif  // CORE_INCLUDE_FXCRT_FX_BASIC_H_
diff --git a/core/include/fxcrt/fx_coordinates.h b/core/include/fxcrt/fx_coordinates.h
index 758d33762e..076c0e6a2f 100644
--- a/core/include/fxcrt/fx_coordinates.h
+++ b/core/include/fxcrt/fx_coordinates.h
@@ -4,8 +4,8 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FXCRT_COORDINATES_
-#define _FXCRT_COORDINATES_
+#ifndef CORE_INCLUDE_FXCRT_FX_COORDINATES_H_
+#define CORE_INCLUDE_FXCRT_FX_COORDINATES_H_
 
 #include "fx_basic.h"
 
@@ -903,4 +903,5 @@ public:
     FX_FLOAT f;
 };
 #define CFX_AffineMatrix	CFX_Matrix
-#endif
+
+#endif  // CORE_INCLUDE_FXCRT_FX_COORDINATES_H_
diff --git a/core/include/fxcrt/fx_ext.h b/core/include/fxcrt/fx_ext.h
index 3db772a08e..3d0cdedf9e 100644
--- a/core/include/fxcrt/fx_ext.h
+++ b/core/include/fxcrt/fx_ext.h
@@ -4,8 +4,8 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FXCRT_EXTENSION_
-#define _FXCRT_EXTENSION_
+#ifndef CORE_INCLUDE_FXCRT_FX_EXT_H_
+#define CORE_INCLUDE_FXCRT_FX_EXT_H_
 
 #include "fx_arb.h"
 #include "fx_basic.h"
@@ -90,4 +90,5 @@ public:
         }
     }
 };
-#endif
+
+#endif  // CORE_INCLUDE_FXCRT_FX_EXT_H_
diff --git a/core/include/fxcrt/fx_memory.h b/core/include/fxcrt/fx_memory.h
index a75ff25818..c6a7d486f1 100644
--- a/core/include/fxcrt/fx_memory.h
+++ b/core/include/fxcrt/fx_memory.h
@@ -4,8 +4,8 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FX_MEMORY_H_
-#define _FX_MEMORY_H_
+#ifndef CORE_INCLUDE_FXCRT_FX_MEMORY_H_
+#define CORE_INCLUDE_FXCRT_FX_MEMORY_H_
 
 #include "fx_system.h"
 
@@ -115,5 +115,6 @@ private:
 
     void*	m_pFirstTrunk;
 };
-#endif  // __cplusplust
-#endif  // _FX_MEMORY_H_
+#endif  // __cplusplus
+
+#endif  // CORE_INCLUDE_FXCRT_FX_MEMORY_H_
diff --git a/core/include/fxcrt/fx_stream.h b/core/include/fxcrt/fx_stream.h
index 73bb8a72fe..7f36342160 100644
--- a/core/include/fxcrt/fx_stream.h
+++ b/core/include/fxcrt/fx_stream.h
@@ -4,8 +4,8 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FX_STREAM_H_
-#define _FX_STREAM_H_
+#ifndef CORE_INCLUDE_FXCRT_FX_STREAM_H_
+#define CORE_INCLUDE_FXCRT_FX_STREAM_H_
 
 #include "fx_memory.h"
 #include "fx_string.h"
@@ -200,4 +200,5 @@ public:
 
     virtual FX_FILESIZE		GetBlockOffset() = 0;
 };
-#endif
+
+#endif  // CORE_INCLUDE_FXCRT_FX_STREAM_H_
diff --git a/core/include/fxcrt/fx_string.h b/core/include/fxcrt/fx_string.h
index 3614cbe0ee..efbe80accb 100644
--- a/core/include/fxcrt/fx_string.h
+++ b/core/include/fxcrt/fx_string.h
@@ -4,8 +4,8 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FX_STRING_H_
-#define _FX_STRING_H_
+#ifndef CORE_INCLUDE_FXCRT_FX_STRING_H_
+#define CORE_INCLUDE_FXCRT_FX_STRING_H_
 
 #include <stdint.h>  // For intptr_t.
 #include <algorithm>
@@ -902,4 +902,5 @@ inline CFX_ByteString	FX_UTF8Encode(const CFX_WideString &wsStr)
 {
     return FX_UTF8Encode(wsStr.c_str(), wsStr.GetLength());
 }
-#endif
+
+#endif  // CORE_INCLUDE_FXCRT_FX_STRING_H_
diff --git a/core/include/fxcrt/fx_system.h b/core/include/fxcrt/fx_system.h
index 96030ca551..76c6b59a52 100644
--- a/core/include/fxcrt/fx_system.h
+++ b/core/include/fxcrt/fx_system.h
@@ -4,8 +4,8 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FX_SYSTEM_H_
-#define _FX_SYSTEM_H_
+#ifndef CORE_INCLUDE_FXCRT_FX_SYSTEM_H_
+#define CORE_INCLUDE_FXCRT_FX_SYSTEM_H_
 
 #define _FX_WIN32_DESKTOP_		1
 #define _FX_LINUX_DESKTOP_		4
@@ -359,4 +359,4 @@ int			FXSYS_round(FX_FLOAT f);
 #define NEVER_INLINE __attribute__((__noinline__))
 #endif  // _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
 
-#endif  // _FX_SYSTEM_H_
+#endif  // CORE_INCLUDE_FXCRT_FX_SYSTEM_H_
diff --git a/core/include/fxcrt/fx_ucd.h b/core/include/fxcrt/fx_ucd.h
index abf953d68a..e764d9fd97 100644
--- a/core/include/fxcrt/fx_ucd.h
+++ b/core/include/fxcrt/fx_ucd.h
@@ -4,8 +4,8 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FX_UNICODE_
-#define _FX_UNICODE_
+#ifndef CORE_INCLUDE_FXCRT_FX_UCD_H_
+#define CORE_INCLUDE_FXCRT_FX_UCD_H_
 
 #include "fx_system.h"
 
@@ -98,4 +98,5 @@ FX_BOOL FX_IsCombinationChar(FX_WCHAR wch);
 FX_BOOL	FX_IsBidiChar(FX_WCHAR wch);
 FX_WCHAR FX_GetMirrorChar(FX_WCHAR wch, FX_BOOL bRTL, FX_BOOL bVertical);
 FX_WCHAR FX_GetMirrorChar(FX_WCHAR wch, FX_DWORD dwProps, FX_BOOL bRTL, FX_BOOL bVertical);
-#endif
+
+#endif  // CORE_INCLUDE_FXCRT_FX_UCD_H_
diff --git a/core/include/fxcrt/fx_xml.h b/core/include/fxcrt/fx_xml.h
index 7f3dbcc205..b2fb24c6df 100644
--- a/core/include/fxcrt/fx_xml.h
+++ b/core/include/fxcrt/fx_xml.h
@@ -4,8 +4,8 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FX_XML_H_
-#define _FX_XML_H_
+#ifndef CORE_INCLUDE_FXCRT_FX_XML_H_
+#define CORE_INCLUDE_FXCRT_FX_XML_H_
 
 #include "fx_basic.h"
 
@@ -176,4 +176,5 @@ protected:
     friend class CXML_Parser;
     friend class CXML_Composer;
 };
-#endif
+
+#endif  // CORE_INCLUDE_FXCRT_FX_XML_H_
diff --git a/core/include/fxge/fpf.h b/core/include/fxge/fpf.h
index 9fb38f8043..440c329439 100644
--- a/core/include/fxge/fpf.h
+++ b/core/include/fxge/fpf.h
@@ -4,8 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FX_PALTFORM_DEVICE_H_
-#define _FX_PALTFORM_DEVICE_H_
+#ifndef CORE_INCLUDE_FXGE_FPF_H_
+#define CORE_INCLUDE_FXGE_FPF_H_
+
 class IFPF_DeviceModule;
 class IFPF_FontMgr;
 class IFPF_Font;
@@ -59,4 +60,5 @@ public:
 
     virtual IFPF_Font*		CreateFont(FX_BSTR bsFamilyname, FX_BYTE charset, FX_DWORD dwStyle, FX_DWORD dwMatch = 0) = 0;
 };
-#endif
+
+#endif  // CORE_INCLUDE_FXGE_FPF_H_
diff --git a/core/include/fxge/fx_dib.h b/core/include/fxge/fx_dib.h
index d6e99b7f73..74738d0d0f 100644
--- a/core/include/fxge/fx_dib.h
+++ b/core/include/fxge/fx_dib.h
@@ -4,11 +4,11 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FPDF_DIB_H_
-#define _FPDF_DIB_H_
-#ifndef _FXCRT_EXTENSION_
+#ifndef CORE_INCLUDE_FXGE_FX_DIB_H_
+#define CORE_INCLUDE_FXGE_FX_DIB_H_
+
 #include "../fxcrt/fx_ext.h"
-#endif
+
 enum FXDIB_Format {
     FXDIB_Invalid = 0,
     FXDIB_1bppMask = 0x101,
@@ -602,4 +602,5 @@ protected:
     FX_BOOL				m_bRgbByteOrder;
     int					m_BlendType;
 };
-#endif
+
+#endif  // CORE_INCLUDE_FXGE_FX_DIB_H_
diff --git a/core/include/fxge/fx_font.h b/core/include/fxge/fx_font.h
index 7ae3c6d39d..aa985820c8 100644
--- a/core/include/fxge/fx_font.h
+++ b/core/include/fxge/fx_font.h
@@ -4,8 +4,8 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef FX_FONT_H_
-#define FX_FONT_H_
+#ifndef CORE_INCLUDE_FXGE_FX_FONT_H_
+#define CORE_INCLUDE_FXGE_FX_FONT_H_
 
 #include "../fxcrt/fx_ext.h"
 #include "fx_dib.h"
@@ -432,4 +432,4 @@ protected:
 };
 IFX_GSUBTable* FXGE_CreateGSUBTable(CFX_Font* pFont);
 
-#endif  // FX_FONT_H_
+#endif  // CORE_INCLUDE_FXGE_FX_FONT_H_
diff --git a/core/include/fxge/fx_freetype.h b/core/include/fxge/fx_freetype.h
index 4b49d5f6ea..6975ead298 100644
--- a/core/include/fxge/fx_freetype.h
+++ b/core/include/fxge/fx_freetype.h
@@ -4,6 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
+#ifndef CORE_INCLUDE_FXGE_FX_FREETYPE_H_
+#define CORE_INCLUDE_FXGE_FX_FREETYPE_H_
+
 #include <ft2build.h>
 #include <freetype.h>
 #include <ftglyph.h>
@@ -141,3 +144,5 @@ void FXFT_adobe_name_from_unicode(char* name, wchar_t unicode);
 #ifdef __cplusplus
 };
 #endif
+
+#endif  // CORE_INCLUDE_FXGE_FX_FREETYPE_H_
diff --git a/core/include/fxge/fx_ge.h b/core/include/fxge/fx_ge.h
index 147e24ce1f..60374eff45 100644
--- a/core/include/fxge/fx_ge.h
+++ b/core/include/fxge/fx_ge.h
@@ -4,14 +4,12 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FX_GE_H_
-#define _FX_GE_H_
-#ifndef _FX_DIB_H_
+#ifndef CORE_INCLUDE_FXGE_FX_GE_H_
+#define CORE_INCLUDE_FXGE_FX_GE_H_
+
 #include "fx_dib.h"
-#endif
-#ifndef _FX_FONT_H_
 #include "fx_font.h"
-#endif
+
 class CFX_ClipRgn;
 class CFX_PathData;
 class CFX_GraphStateData;
@@ -23,6 +21,7 @@ class CFX_RenderDevice;
 class IFX_RenderDeviceDriver;
 class CCodec_ModuleMgr;
 class IFXG_PaintModuleMgr;
+
 class CFX_GEModule 
 {
 public:
@@ -729,4 +728,5 @@ private:
 
     void			WritePSBinary(FX_LPCBYTE data, int len);
 };
-#endif
+
+#endif  // CORE_INCLUDE_FXGE_FX_GE_H_
diff --git a/core/include/fxge/fx_ge_apple.h b/core/include/fxge/fx_ge_apple.h
index 44bf2a028a..90cd03455b 100644
--- a/core/include/fxge/fx_ge_apple.h
+++ b/core/include/fxge/fx_ge_apple.h
@@ -4,8 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FX_GE_APPLE_H_
-#define _FX_GE_APPLE_H_
+#ifndef CORE_INCLUDE_FXGE_FX_GE_APPLE_H_
+#define CORE_INCLUDE_FXGE_FX_GE_APPLE_H_
+
 #if _FXM_PLATFORM_  == _FXM_PLATFORM_APPLE_
 class CFX_QuartzDevice : public CFX_RenderDevice
 {
@@ -23,4 +24,5 @@ protected:
     FX_BOOL m_bOwnedBitmap;
 };
 #endif
-#endif
+
+#endif  // CORE_INCLUDE_FXGE_FX_GE_APPLE_H_
diff --git a/core/include/fxge/fx_ge_win32.h b/core/include/fxge/fx_ge_win32.h
index d39a8071e3..c9cb2a35a9 100644
--- a/core/include/fxge/fx_ge_win32.h
+++ b/core/include/fxge/fx_ge_win32.h
@@ -4,8 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FX_GE_WIN32_H_
-#define _FX_GE_WIN32_H_
+#ifndef CORE_INCLUDE_FXGE_FX_GE_WIN32_H_
+#define CORE_INCLUDE_FXGE_FX_GE_WIN32_H_
+
 #ifdef _WIN32
 #ifndef _WINDOWS_
 #include <windows.h>
@@ -102,4 +103,5 @@ protected:
     HDC		m_hDC;
 };
 #endif
-#endif
+
+#endif  // CORE_INCLUDE_FXGE_FX_GE_WIN32_H_
diff --git a/core/include/reflow/fpdf_layout.h b/core/include/reflow/fpdf_layout.h
index fc01ba30c8..ebd879c764 100644
--- a/core/include/reflow/fpdf_layout.h
+++ b/core/include/reflow/fpdf_layout.h
@@ -4,8 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FPDFAPI_LAYOUT_H_
-#define _FPDFAPI_LAYOUT_H_
+#ifndef CORE_INCLUDE_REFLOW_FPDF_LAYOUT_H_
+#define CORE_INCLUDE_REFLOW_FPDF_LAYOUT_H_
+
 class IPDF_LayoutElement;
 class IPDF_LayoutProcessor;
 class IPDF_LayoutProvider;
@@ -277,4 +278,4 @@ public:
 
     virtual IPDF_LayoutElement* GetRoot() = 0;
 };
-#endif
+#endif  // CORE_INCLUDE_REFLOW_FPDF_LAYOUT_H_
diff --git a/core/include/reflow/reflowengine.h b/core/include/reflow/reflowengine.h
index e6a5265db3..af3c943e97 100644
--- a/core/include/reflow/reflowengine.h
+++ b/core/include/reflow/reflowengine.h
@@ -4,13 +4,15 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _REFLOW_ENGINE_H
-#define _REFLOW_ENGINE_H
+#ifndef CORE_INCLUDE_REFLOW_REFLOWENGINE_H_
+#define CORE_INCLUDE_REFLOW_REFLOWENGINE_H_
+
+#include "../fpdfapi/fpdf_pageobj.h"
 #include "../fpdfapi/fpdf_render.h"
+#include "../fpdfdoc/fpdf_tagged.h"
 #include "../fpdftext/fpdf_text.h"
 #include "fpdf_layout.h"
-#include "../fpdfapi/fpdf_pageobj.h"
-#include "../fpdfdoc/fpdf_tagged.h"
+
 class IPDF_ReflowedPage
 {
 public:
@@ -73,4 +75,5 @@ public:
 IPDF_ReflowedPage* Create_ReflowPage();
 IPDF_ProgressiveReflowPageParser* Create_ReflowPageParser();
 IPDF_ProgressiveReflowPageRender* Create_ReflowPageRender();
-#endif
+
+#endif  // CORE_INCLUDE_REFLOW_REFLOWENGINE_H_
diff --git a/core/src/fpdfapi/fpdf_cmaps/cmap_int.h b/core/src/fpdfapi/fpdf_cmaps/cmap_int.h
index c7dcfc9bf1..1d3ed144e6 100644
--- a/core/src/fpdfapi/fpdf_cmaps/cmap_int.h
+++ b/core/src/fpdfapi/fpdf_cmaps/cmap_int.h
@@ -4,8 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FPDFAPI_CMAP_INT_H_
-#define _FPDFAPI_CMAP_INT_H_
+#ifndef CORE_SRC_FPDFAPI_FPDF_CMAPS_CMAP_INT_H_
+#define CORE_SRC_FPDFAPI_FPDF_CMAPS_CMAP_INT_H_
+
 struct FXCMAP_CMap {
     typedef enum { None, Single, Range, Reverse } MapType;
     const char*		m_Name;
@@ -17,4 +18,5 @@ struct FXCMAP_CMap {
     int				m_DWordCount;
     int				m_UseOffset;
 };
-#endif
+
+#endif  // CORE_SRC_FPDFAPI_FPDF_CMAPS_CMAP_INT_H_
diff --git a/core/src/fpdfapi/fpdf_edit/editint.h b/core/src/fpdfapi/fpdf_edit/editint.h
index 73b28e3735..faa23f929d 100644
--- a/core/src/fpdfapi/fpdf_edit/editint.h
+++ b/core/src/fpdfapi/fpdf_edit/editint.h
@@ -4,8 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FPDF_EDITINT_
-#define _FPDF_EDITINT_
+#ifndef CORE_SRC_FPDFAPI_FPDF_EDIT_EDITINT_H_
+#define CORE_SRC_FPDFAPI_FPDF_EDIT_EDITINT_H_
+
 class CPDF_ObjectStream 
 {
 public:
@@ -56,4 +57,5 @@ protected:
     CPDF_ObjectStream	m_ObjStream;
     CFX_ByteTextBuf		m_Buffer;
 };
-#endif
+
+#endif  // CORE_SRC_FPDFAPI_FPDF_EDIT_EDITINT_H_
diff --git a/core/src/fpdfapi/fpdf_font/common.h b/core/src/fpdfapi/fpdf_font/common.h
index 4b37a44ccc..923a394662 100644
--- a/core/src/fpdfapi/fpdf_font/common.h
+++ b/core/src/fpdfapi/fpdf_font/common.h
@@ -4,8 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef COMMON_H
-#define COMMON_H
+#ifndef CORE_SRC_FPDFAPI_FPDF_FONT_COMMON_H_
+#define CORE_SRC_FPDFAPI_FPDF_FONT_COMMON_H_
+
 typedef signed char TT_int8_t;
 typedef unsigned char TT_uint8_t;
 typedef signed short TT_int16_t;
@@ -14,4 +15,5 @@ typedef FX_INT32 TT_int32_t;
 typedef FX_DWORD TT_uint32_t;
 typedef FX_INT64 TT_int64_t;
 typedef FX_UINT64 TT_uint64_t;
-#endif
+
+#endif  // CORE_SRC_FPDFAPI_FPDF_FONT_COMMON_H_
diff --git a/core/src/fpdfapi/fpdf_font/font_int.h b/core/src/fpdfapi/fpdf_font/font_int.h
index 56454286df..697ccffafd 100644
--- a/core/src/fpdfapi/fpdf_font/font_int.h
+++ b/core/src/fpdfapi/fpdf_font/font_int.h
@@ -3,6 +3,8 @@
 // found in the LICENSE file.
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+#ifndef CORE_SRC_FPDFAPI_FPDF_FONT_FONT_INT_H_
+#define CORE_SRC_FPDFAPI_FPDF_FONT_FONT_INT_H_
 
 typedef void* FXFT_Library;
 class CPDF_CMapManager 
@@ -170,3 +172,5 @@ public:
     CPDF_FontCharMap(CPDF_Font* pFont);
     CPDF_Font*		m_pFont;
 };
+
+#endif  // CORE_SRC_FPDFAPI_FPDF_FONT_FONT_INT_H_
diff --git a/core/src/fpdfapi/fpdf_font/ttgsubtable.h b/core/src/fpdfapi/fpdf_font/ttgsubtable.h
index d231c13ca2..adfff6756a 100644
--- a/core/src/fpdfapi/fpdf_font/ttgsubtable.h
+++ b/core/src/fpdfapi/fpdf_font/ttgsubtable.h
@@ -4,11 +4,13 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef TTGSUBTable_H
-#define TTGSUBTable_H
+#ifndef CORE_SRC_FPDFAPI_FPDF_FONT_TTGSUBTABLE_H_
+#define CORE_SRC_FPDFAPI_FPDF_FONT_TTGSUBTABLE_H_
+
 #include "../../../include/fxge/fx_freetype.h"
 #include "../../../include/fxcrt/fx_basic.h"
 #include "common.h"
+
 class CFX_GlyphMap
 {
 public:
@@ -420,5 +422,5 @@ public:
 private:
     ~CFX_GSUBTable() { }
 };
-#endif
 
+#endif  // CORE_SRC_FPDFAPI_FPDF_FONT_TTGSUBTABLE_H_
diff --git a/core/src/fpdfapi/fpdf_page/pageint.h b/core/src/fpdfapi/fpdf_page/pageint.h
index df98312824..8b3c5171c8 100644
--- a/core/src/fpdfapi/fpdf_page/pageint.h
+++ b/core/src/fpdfapi/fpdf_page/pageint.h
@@ -4,10 +4,11 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _PAGEINT_H_
-#define _PAGEINT_H_
+#ifndef CORE_SRC_FPDFAPI_FPDF_PAGE_PAGEINT_H_
+#define CORE_SRC_FPDFAPI_FPDF_PAGE_PAGEINT_H_
 
 #include "../../../include/fpdfapi/fpdf_pageobj.h"
+
 #define PARSE_STEP_LIMIT		100
 #define STREAM_PARSE_BUFSIZE	20480
 class CPDF_QuickFontCache;
@@ -465,4 +466,4 @@ protected:
     CFX_MapByteStringToPtr	m_NamingCache;
 };
 
-#endif  // _PAGEINT_H_
+#endif  // CORE_SRC_FPDFAPI_FPDF_PAGE_PAGEINT_H_
diff --git a/core/src/fpdfapi/fpdf_parser/filters_int.h b/core/src/fpdfapi/fpdf_parser/filters_int.h
index d1dedc482c..1139371fda 100644
--- a/core/src/fpdfapi/fpdf_parser/filters_int.h
+++ b/core/src/fpdfapi/fpdf_parser/filters_int.h
@@ -4,6 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
+#ifndef CORE_SRC_FPDFAPI_FPDF_PARSER_FILTERS_INT_H_
+#define CORE_SRC_FPDFAPI_FPDF_PARSER_FILTERS_INT_H_
+
 class CPDF_DecryptFilter : public CFX_DataFilter
 {
 public:
@@ -117,3 +120,5 @@ public:
                                 CFX_BinaryBuf& dest_buf);
     FX_BOOL			ReadLine(FX_LPCBYTE src_buf, int bitsize, int& bitpos);
 };
+
+#endif  // CORE_SRC_FPDFAPI_FPDF_PARSER_FILTERS_INT_H_
diff --git a/core/src/fpdfapi/fpdf_render/render_int.h b/core/src/fpdfapi/fpdf_render/render_int.h
index 086a1c24b2..cf2074f5bd 100644
--- a/core/src/fpdfapi/fpdf_render/render_int.h
+++ b/core/src/fpdfapi/fpdf_render/render_int.h
@@ -4,9 +4,11 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FPDF_PAGEOBJ_H_
+#ifndef CORE_SRC_FPDFAPI_FPDF_RENDER_RENDER_INT_H_
+#define CORE_SRC_FPDFAPI_FPDF_RENDER_RENDER_INT_H_
+
 #include "../../../include/fpdfapi/fpdf_pageobj.h"
-#endif
+
 class CPDF_QuickStretcher;
 #define TYPE3_MAX_BLUES		16
 class CPDF_Type3Glyphs 
@@ -465,3 +467,5 @@ struct _CPDF_UniqueKeyGen {
     FX_CHAR		m_Key[128];
     int			m_KeyLen;
 };
+
+#endif  // CORE_SRC_FPDFAPI_FPDF_RENDER_RENDER_INT_H_
diff --git a/core/src/fpdfdoc/pdf_vt.h b/core/src/fpdfdoc/pdf_vt.h
index 19c75479ea..4062bf979d 100644
--- a/core/src/fpdfdoc/pdf_vt.h
+++ b/core/src/fpdfdoc/pdf_vt.h
@@ -4,8 +4,8 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _PDF_VT_H_
-#define _PDF_VT_H_
+#ifndef CORE_SRC_FPDFDOC_PDF_VT_H_
+#define CORE_SRC_FPDFDOC_PDF_VT_H_
 
 class CPVT_Size;
 class CPVT_FloatRect;
@@ -635,4 +635,4 @@ private:
     CPDF_VariableText *						m_pVT;
 };
 
-#endif  // _PDF_VT_H_
+#endif  // CORE_SRC_FPDFDOC_PDF_VT_H_
diff --git a/core/src/fpdfdoc/tagged_int.h b/core/src/fpdfdoc/tagged_int.h
index 7efd682887..75004e51fa 100644
--- a/core/src/fpdfdoc/tagged_int.h
+++ b/core/src/fpdfdoc/tagged_int.h
@@ -4,8 +4,8 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FPDF_TAGGED_INT_H_
-#define _FPDF_TAGGED_INT_H_
+#ifndef CORE_SRC_FPDFDOC_TAGGED_INT_H_
+#define CORE_SRC_FPDFDOC_TAGGED_INT_H_
 
 #include "../../include/fpdfdoc/fpdf_tagged.h"
 
@@ -91,4 +91,5 @@ protected:
 
     friend class CPDF_StructTreeImpl;
 };
-#endif
+
+#endif  // CORE_SRC_FPDFDOC_TAGGED_INT_H_
diff --git a/core/src/fpdftext/text_int.h b/core/src/fpdftext/text_int.h
index 0dc17a85c8..01d10236fc 100644
--- a/core/src/fpdftext/text_int.h
+++ b/core/src/fpdftext/text_int.h
@@ -4,8 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _PDF_TEXT_INT_H_
-#define _PDF_TEXT_INT_H_
+#ifndef CORE_SRC_FPDFTEXT_TEXT_INT_H_
+#define CORE_SRC_FPDFTEXT_TEXT_INT_H_
+
 class CPDF_TextParseOptions 
 {
 public:
@@ -217,4 +218,5 @@ private:
 FX_STRSIZE FX_Unicode_GetNormalization(FX_WCHAR wch, FX_LPWSTR pDst);
 void NormalizeString(CFX_WideString& str);
 void NormalizeCompositeChar(FX_WCHAR wChar, CFX_WideString& sDest);
-#endif
+
+#endif  // CORE_SRC_FPDFTEXT_TEXT_INT_H_
diff --git a/core/src/fpdftext/txtproc.h b/core/src/fpdftext/txtproc.h
index abbe105305..e1e6bf7099 100644
--- a/core/src/fpdftext/txtproc.h
+++ b/core/src/fpdftext/txtproc.h
@@ -4,8 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _PDF_TXTPROC_H_
-#define _PDF_TXTPROC_H_
+#ifndef CORE_SRC_FPDFTEXT_TXTPROC_H_
+#define CORE_SRC_FPDFTEXT_TXTPROC_H_
+
 class CTextColumn 
 {
 public:
@@ -67,4 +68,5 @@ private:
     CTextColumn*	FindColumn(FX_FLOAT xpos);
     void	BreakSpace(CPDF_TextObject* pTextObj);
 };
-#endif
+
+#endif  // CORE_SRC_FPDFTEXT_TXTPROC_H_
diff --git a/core/src/fx_jpeglib.h b/core/src/fx_jpeglib.h
index 028a5ee8b9..b098008e6c 100644
--- a/core/src/fx_jpeglib.h
+++ b/core/src/fx_jpeglib.h
@@ -4,7 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FX_SRC_JPEGLIB_H_
-#define _FX_SRC_JPEGLIB_H_
-#include "./fxcodec/libjpeg/jpeglib.h"
-#endif
+#ifndef CORE_SRC_FX_JPEGLIB_H_
+#define CORE_SRC_FX_JPEGLIB_H_
+
+#include "fxcodec/libjpeg/jpeglib.h"
+
+#endif  // CORE_SRC_FX_JPEGLIB_H_
diff --git a/core/src/fx_zlib.h b/core/src/fx_zlib.h
index cc5560bf05..8ce27748a2 100644
--- a/core/src/fx_zlib.h
+++ b/core/src/fx_zlib.h
@@ -4,7 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FX_SRC_ZLIB_H_
-#define _FX_SRC_ZLIB_H_
-#include "./fxcodec/fx_zlib/zlib_v128/zlib.h"
-#endif
+#ifndef CORE_SRC_FX_ZLIB_H_
+#define CORE_SRC_FX_ZLIB_H_
+
+#include "fxcodec/fx_zlib/zlib_v128/zlib.h"
+
+#endif  // CORE_SRC_FX_ZLIB_H_
diff --git a/core/src/fxcodec/fx_libopenjpeg/include/fx_openjpeg.h b/core/src/fxcodec/fx_libopenjpeg/include/fx_openjpeg.h
index da480f22a0..5725a57e75 100644
--- a/core/src/fxcodec/fx_libopenjpeg/include/fx_openjpeg.h
+++ b/core/src/fxcodec/fx_libopenjpeg/include/fx_openjpeg.h
@@ -4,10 +4,13 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FX_OPENJPEG_H_
-#define _FX_OPENJPEG_H_
+#ifndef CORE_SRC_FXCODEC_FX_LIBOPENJPEG_INCLUDE_FX_OPENJPEG_H_
+#define CORE_SRC_FXCODEC_FX_LIBOPENJPEG_INCLUDE_FX_OPENJPEG_H_
+
 #ifdef _MSC_VER
 #define _CRT_SECURE_NO_WARNINGS
 #endif
+
 #include "../libopenjpeg20/openjpeg.h"
-#endif
+
+#endif  // CORE_SRC_FXCODEC_FX_LIBOPENJPEG_INCLUDE_FX_OPENJPEG_H_
diff --git a/core/src/fxcodec/fx_zlib/include/fx_zlib.h b/core/src/fxcodec/fx_zlib/include/fx_zlib.h
index 955481ce7b..54a674db44 100644
--- a/core/src/fxcodec/fx_zlib/include/fx_zlib.h
+++ b/core/src/fxcodec/fx_zlib/include/fx_zlib.h
@@ -4,7 +4,12 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
+#ifndef CORE_SRC_FXCODEC_FX_ZLIB_INCLUDE_FX_ZLIB_H_
+#define CORE_SRC_FXCODEC_FX_ZLIB_INCLUDE_FX_ZLIB_H_
+
 #ifdef _MSC_VER
 #define _CRT_SECURE_NO_WARNINGS
 #endif
 #include "../zlib_v128/zlib.h"
+
+#endif  // CORE_SRC_FXCODEC_FX_ZLIB_INCLUDE_FX_ZLIB_H_
diff --git a/core/src/fxcodec/lcms2/include/fx_lcms2.h b/core/src/fxcodec/lcms2/include/fx_lcms2.h
index e6413188d8..ca1ed2a2b2 100644
--- a/core/src/fxcodec/lcms2/include/fx_lcms2.h
+++ b/core/src/fxcodec/lcms2/include/fx_lcms2.h
@@ -4,7 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FX_LCMS2_H_
-#define _FX_LCMS2_H_
+#ifndef CORE_SRC_FXCODEC_LCMS2_INCLUDE_FX_LCMS2_H_
+#define CORE_SRC_FXCODEC_LCMS2_INCLUDE_FX_LCMS2_H_
+
 #include "../lcms2-2.6/include/lcms2.h"
-#endif
+
+#endif  // CORE_SRC_FXCODEC_LCMS2_INCLUDE_FX_LCMS2_H_
diff --git a/core/src/fxcodec/lcms2/include/fx_lcms2_plugin.h b/core/src/fxcodec/lcms2/include/fx_lcms2_plugin.h
index 4ab5775718..92fd8a6362 100644
--- a/core/src/fxcodec/lcms2/include/fx_lcms2_plugin.h
+++ b/core/src/fxcodec/lcms2/include/fx_lcms2_plugin.h
@@ -4,7 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FX_LCMS2_H_
-#define _FX_LCMS2_H_
+#ifndef CORE_SRC_FXCODEC_LCMS2_INCLUDE_FX_LCMS2_PLUGIN_H_
+#define CORE_SRC_FXCODEC_LCMS2_INCLUDE_FX_LCMS2_PLUGIN_H_
+
 #include "../lcms2-2.6/include/lcms2_plugin.h"
-#endif
+
+#endif  // CORE_SRC_FXCODEC_LCMS2_INCLUDE_FX_LCMS2_PLUGIN_H_
diff --git a/core/src/fxcrt/extension.h b/core/src/fxcrt/extension.h
index c459bdcf99..e678cbbe2b 100644
--- a/core/src/fxcrt/extension.h
+++ b/core/src/fxcrt/extension.h
@@ -4,8 +4,8 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FXCRT_EXTENSION_IMP_
-#define _FXCRT_EXTENSION_IMP_
+#ifndef CORE_SRC_FXCRT_EXTENSION_H_
+#define CORE_SRC_FXCRT_EXTENSION_H_
 
 #include "fx_safe_types.h"
 
@@ -436,4 +436,5 @@ FX_BOOL FX_GenerateCryptoRandom(FX_LPDWORD pBuffer, FX_INT32 iCount);
 #ifdef __cplusplus
 }
 #endif
-#endif
+
+#endif  // CORE_SRC_FXCRT_EXTENSION_H_
diff --git a/core/src/fxcrt/fx_arabic.h b/core/src/fxcrt/fx_arabic.h
index b3e906a70f..dda26e6d1f 100644
--- a/core/src/fxcrt/fx_arabic.h
+++ b/core/src/fxcrt/fx_arabic.h
@@ -4,8 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FX_ARABIC_IMP
-#define _FX_ARABIC_IMP
+#ifndef CORE_SRC_FXCRT_FX_ARABIC_H_
+#define CORE_SRC_FXCRT_FX_ARABIC_H_
+
 class CFX_BidiChar FX_FINAL : public IFX_BidiChar
 {
 public:
@@ -33,4 +34,5 @@ private:
     FX_INT32	m_iLastStart;
     FX_INT32	m_iLastCount;
 };
-#endif
+
+#endif  // CORE_SRC_FXCRT_FX_ARABIC_H_
diff --git a/core/src/fxcrt/fx_safe_types.h b/core/src/fxcrt/fx_safe_types.h
index 5772fd0e3c..35a906cf27 100644
--- a/core/src/fxcrt/fx_safe_types.h
+++ b/core/src/fxcrt/fx_safe_types.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef FX_SAFE_TYPES_H_
-#define FX_SAFE_TYPES_H_
+#ifndef CORE_SRC_FXCRT_FX_SAFE_TYPES_H_
+#define CORE_SRC_FXCRT_FX_SAFE_TYPES_H_
 
 #include <stdlib.h>  // For size_t.
 
@@ -14,4 +14,4 @@ typedef pdfium::base::CheckedNumeric<FX_INT32> FX_SAFE_INT32;
 typedef pdfium::base::CheckedNumeric<size_t> FX_SAFE_SIZE_T;
 typedef pdfium::base::CheckedNumeric<FX_FILESIZE> FX_SAFE_FILESIZE;
 
-#endif  // FX_SAFE_TYPES_H_
+#endif  // CORE_SRC_FXCRT_FX_SAFE_TYPES_H_
diff --git a/core/src/fxcrt/fxcrt_platforms.h b/core/src/fxcrt/fxcrt_platforms.h
index dbfa58be1a..be51724352 100644
--- a/core/src/fxcrt/fxcrt_platforms.h
+++ b/core/src/fxcrt/fxcrt_platforms.h
@@ -4,9 +4,11 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FXCRT_PLATFORMS_
-#define _FXCRT_PLATFORMS_
+#ifndef CORE_SRC_FXCRT_FXCRT_PLATFORMS_H_
+#define CORE_SRC_FXCRT_FXCRT_PLATFORMS_H_
+
 #include "extension.h"
+
 #if _FX_OS_ == _FX_ANDROID_
 void	FXCRT_GetFileModeString(FX_DWORD dwModes, CFX_ByteString &bsMode);
 void	FXCRT_GetFileModeString(FX_DWORD dwModes, CFX_WideString &wsMode);
@@ -32,4 +34,5 @@ protected:
     FXSYS_FILE*	m_hFile;
 };
 #endif
-#endif
+
+#endif  // CORE_SRC_FXCRT_FXCRT_PLATFORMS_H_
diff --git a/core/src/fxcrt/fxcrt_posix.h b/core/src/fxcrt/fxcrt_posix.h
index 89162cd037..8c716cd6d6 100644
--- a/core/src/fxcrt/fxcrt_posix.h
+++ b/core/src/fxcrt/fxcrt_posix.h
@@ -4,9 +4,11 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FXCRT_LINUX_
-#define _FXCRT_LINUX_
+#ifndef CORE_SRC_FXCRT_FXCRT_POSIX_H_
+#define CORE_SRC_FXCRT_FXCRT_POSIX_H_
+
 #include "extension.h"
+
 #if _FXM_PLATFORM_ == _FXM_PLATFORM_LINUX_ || _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ || _FXM_PLATFORM_ == _FXM_PLATFORM_ANDROID_
 class CFXCRT_FileAccess_Posix : public IFXCRT_FileAccess
 {
@@ -30,4 +32,5 @@ protected:
     FX_INT32	m_nFD;
 };
 #endif
-#endif
+
+#endif  // CORE_SRC_FXCRT_FXCRT_POSIX_H_
diff --git a/core/src/fxcrt/fxcrt_windows.h b/core/src/fxcrt/fxcrt_windows.h
index 92646b2757..1919f3e4d7 100644
--- a/core/src/fxcrt/fxcrt_windows.h
+++ b/core/src/fxcrt/fxcrt_windows.h
@@ -4,9 +4,11 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FXCRT_WINDOWS_
-#define _FXCRT_WINDOWS_
+#ifndef CORE_SRC_FXCRT_FXCRT_WINDOWS_H_
+#define CORE_SRC_FXCRT_FXCRT_WINDOWS_H_
+
 #include "extension.h"
+
 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
 class CFXCRT_FileAccess_Win64 : public IFXCRT_FileAccess
 {
@@ -30,4 +32,5 @@ protected:
     FX_LPVOID	m_hFile;
 };
 #endif
-#endif
+
+#endif  // CORE_SRC_FXCRT_FXCRT_WINDOWS_H_
diff --git a/core/src/fxcrt/plex.h b/core/src/fxcrt/plex.h
index f8f01948e5..a4ac4f7c48 100644
--- a/core/src/fxcrt/plex.h
+++ b/core/src/fxcrt/plex.h
@@ -3,6 +3,8 @@
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+#ifndef CORE_SRC_FXCRT_PLEX_H_
+#define CORE_SRC_FXCRT_PLEX_H_
 
 struct CFX_Plex {
     CFX_Plex* pNext;
@@ -13,3 +15,5 @@ struct CFX_Plex {
     static CFX_Plex* Create(CFX_Plex*& head, FX_DWORD nMax, FX_DWORD cbElement);
     void FreeDataChain();
 };
+
+#endif  // CORE_SRC_FXCRT_PLEX_H_
diff --git a/core/src/fxcrt/xml_int.h b/core/src/fxcrt/xml_int.h
index f0a2485163..7cfeec95f7 100644
--- a/core/src/fxcrt/xml_int.h
+++ b/core/src/fxcrt/xml_int.h
@@ -4,8 +4,9 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FXCRT_XML_INT_
-#define _FXCRT_XML_INT_
+#ifndef CORE_SRC_FXCRT_XML_INT_H_
+#define CORE_SRC_FXCRT_XML_INT_H_
+
 class CXML_DataBufAcc : public IFX_BufferRead
 {
 public:
@@ -158,4 +159,5 @@ public:
     void			InsertCDATASegment(CFX_UTF8Decoder& decoder, CXML_Element* pElement);
 };
 void FX_XML_SplitQualifiedName(FX_BSTR bsFullName, CFX_ByteStringC &bsSpace, CFX_ByteStringC &bsName);
-#endif
+
+#endif  // CORE_SRC_FXCRT_XML_INT_H_
diff --git a/core/src/fxge/agg/include/fx_agg_driver.h b/core/src/fxge/agg/include/fx_agg_driver.h
index c87fc246be..f4b9368eff 100644
--- a/core/src/fxge/agg/include/fx_agg_driver.h
+++ b/core/src/fxge/agg/include/fx_agg_driver.h
@@ -4,10 +4,12 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FX_AGG_DEVICE_DRIVER_
-#define _FX_AGG_DEVICE_DRIVER_
+#ifndef FX_AGG_DRIVER_H_
+#define FX_AGG_DRIVER_H_
+
 #include "fxfx_agg_path_storage.h"
 #include "fxfx_agg_rasterizer_scanline_aa.h"
+
 class CAgg_PathData 
 {
 public:
@@ -118,4 +120,5 @@ public:
     CFX_DIBitmap*       m_pOriDevice;
     FX_BOOL             m_bGroupKnockout;
 };
-#endif
+
+#endif  // FX_AGG_DRIVER_H_
diff --git a/core/src/fxge/agg/include/fxfx_agg_basics.h b/core/src/fxge/agg/include/fxfx_agg_basics.h
index 57fbd2ebb9..e27a843bba 100644
--- a/core/src/fxge/agg/include/fxfx_agg_basics.h
+++ b/core/src/fxge/agg/include/fxfx_agg_basics.h
@@ -4,7 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FXFX_AGG_BASICS_H_
-#define _FXFX_AGG_BASICS_H_
+#ifndef FXFX_AGG_BASICS_H_
+#define FXFX_AGG_BASICS_H_
+
 #include "../agg23/agg_basics.h"
-#endif
+
+#endif  // FXFX_AGG_BASICS_H_
diff --git a/core/src/fxge/agg/include/fxfx_agg_clip_liang_barsky.h b/core/src/fxge/agg/include/fxfx_agg_clip_liang_barsky.h
index 948b619355..2b64bf900a 100644
--- a/core/src/fxge/agg/include/fxfx_agg_clip_liang_barsky.h
+++ b/core/src/fxge/agg/include/fxfx_agg_clip_liang_barsky.h
@@ -4,7 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FXFX_AGG_CLIP_LIANG_BARSKY_H_
-#define _FXFX_AGG_CLIP_LIANG_BARSKY_H_
+#ifndef FXFX_AGG_CLIP_LIANG_BARSKY_H_
+#define FXFX_AGG_CLIP_LIANG_BARSKY_H_
+
 #include "../agg23/agg_clip_liang_barsky.h"
-#endif
+
+#endif  // FXFX_AGG_CLIP_LIANG_BARSKY_H_
diff --git a/core/src/fxge/agg/include/fxfx_agg_conv_dash.h b/core/src/fxge/agg/include/fxfx_agg_conv_dash.h
index 5f80a06e19..fb1e42dae9 100644
--- a/core/src/fxge/agg/include/fxfx_agg_conv_dash.h
+++ b/core/src/fxge/agg/include/fxfx_agg_conv_dash.h
@@ -4,7 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FXFX_AGG_CONV_DASH_H_
-#define _FXFX_AGG_CONV_DASH_H_
+#ifndef FXFX_AGG_CONV_DASH_H_
+#define FXFX_AGG_CONV_DASH_H_
+
 #include "../agg23/agg_conv_dash.h"
-#endif
+
+#endif  // FXFX_AGG_CONV_DASH_H_
diff --git a/core/src/fxge/agg/include/fxfx_agg_conv_stroke.h b/core/src/fxge/agg/include/fxfx_agg_conv_stroke.h
index de38386ea2..531df5012e 100644
--- a/core/src/fxge/agg/include/fxfx_agg_conv_stroke.h
+++ b/core/src/fxge/agg/include/fxfx_agg_conv_stroke.h
@@ -4,7 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FXFX_AGG_CONV_STROKE_H_
-#define _FXFX_AGG_CONV_STROKE_H_
+#ifndef FXFX_AGG_CONV_STROKE_H_
+#define FXFX_AGG_CONV_STROKE_H_
+
 #include "../agg23/agg_conv_stroke.h"
-#endif
+
+#endif  // FXFX_AGG_CONV_STROKE_H_
diff --git a/core/src/fxge/agg/include/fxfx_agg_curves.h b/core/src/fxge/agg/include/fxfx_agg_curves.h
index 54efaa2b26..1879958eca 100644
--- a/core/src/fxge/agg/include/fxfx_agg_curves.h
+++ b/core/src/fxge/agg/include/fxfx_agg_curves.h
@@ -4,7 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FXFX_AGG_CURVERS_H_
-#define _FXFX_AGG_CURVERS_H_
+#ifndef FXFX_AGG_CURVES_H_
+#define FXFX_AGG_CURVES_H_
+
 #include "../agg23/agg_curves.h"
-#endif
+
+#endif  // FXFX_AGG_CURVES_H_
diff --git a/core/src/fxge/agg/include/fxfx_agg_path_storage.h b/core/src/fxge/agg/include/fxfx_agg_path_storage.h
index 9168eb26a8..ab7a85bca5 100644
--- a/core/src/fxge/agg/include/fxfx_agg_path_storage.h
+++ b/core/src/fxge/agg/include/fxfx_agg_path_storage.h
@@ -4,7 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FXFX_AGG_PATH_STORAGE_H_
-#define _FXFX_AGG_PATH_STORAGE_H_
+#ifndef FXFX_AGG_PATH_STORAGE_H_
+#define FXFX_AGG_PATH_STORAGE_H_
+
 #include "../agg23/agg_path_storage.h"
-#endif
+
+#endif  // FXFX_AGG_PATH_STORAGE_H_
diff --git a/core/src/fxge/agg/include/fxfx_agg_rasterizer_scanline_aa.h b/core/src/fxge/agg/include/fxfx_agg_rasterizer_scanline_aa.h
index 3f61cec51a..a445298f81 100644
--- a/core/src/fxge/agg/include/fxfx_agg_rasterizer_scanline_aa.h
+++ b/core/src/fxge/agg/include/fxfx_agg_rasterizer_scanline_aa.h
@@ -4,7 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FXFX_AGG_RASTERIZER_SCANLINE_AA_H_
-#define _FXFX_AGG_RASTERIZER_SCANLINE_AA_H_
+#ifndef FXFX_AGG_RASTERIZER_SCANLINE_AA_H_
+#define FXFX_AGG_RASTERIZER_SCANLINE_AA_H_
+
 #include "../agg23/agg_rasterizer_scanline_aa.h"
-#endif
+
+#endif  // FXFX_AGG_RASTERIZER_SCANLINE_AA_H_
diff --git a/core/src/fxge/agg/include/fxfx_agg_renderer_scanline.h b/core/src/fxge/agg/include/fxfx_agg_renderer_scanline.h
index 11d8cbb0a8..1775dabe3e 100644
--- a/core/src/fxge/agg/include/fxfx_agg_renderer_scanline.h
+++ b/core/src/fxge/agg/include/fxfx_agg_renderer_scanline.h
@@ -4,7 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FXFX_AGG_RENDER_SCANLINE_H_
-#define _FXFX_AGG_RENDER_SCANLINE_H_
+#ifndef FXFX_AGG_RENDER_SCANLINE_H_
+#define FXFX_AGG_RENDER_SCANLINE_H_
+
 #include "../agg23/agg_renderer_scanline.h"
-#endif
+
+#endif  // FXFX_AGG_RENDER_SCANLINE_H_
diff --git a/core/src/fxge/agg/include/fxfx_agg_rendering_buffer.h b/core/src/fxge/agg/include/fxfx_agg_rendering_buffer.h
index eb6886e8de..0eb48b84c0 100644
--- a/core/src/fxge/agg/include/fxfx_agg_rendering_buffer.h
+++ b/core/src/fxge/agg/include/fxfx_agg_rendering_buffer.h
@@ -4,7 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FXFX_AGG_RENDERING_BUFFER_H_
-#define _FXFX_AGG_RENDERING_BUFFER_H_
+#ifndef FXFX_AGG_RENDERING_BUFFER_H_
+#define FXFX_AGG_RENDERING_BUFFER_H_
+
 #include "../agg23/agg_rendering_buffer.h"
-#endif
+
+#endif  // FXFX_AGG_RENDERING_BUFFER_H_
diff --git a/core/src/fxge/agg/include/fxfx_agg_scanline_u.h b/core/src/fxge/agg/include/fxfx_agg_scanline_u.h
index cc7d2e7f75..c850f621a3 100644
--- a/core/src/fxge/agg/include/fxfx_agg_scanline_u.h
+++ b/core/src/fxge/agg/include/fxfx_agg_scanline_u.h
@@ -4,7 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FXFX_AGG_SCANLINE_U_H_
-#define _FXFX_AGG_SCANLINE_U_H_
+#ifndef FXFX_AGG_SCANLINE_U_H_
+#define FXFX_AGG_SCANLINE_U_H_
+
 #include "../agg23/agg_scanline_u.h"
-#endif
+
+#endif  // FXFX_AGG_SCANLINE_U_H_
diff --git a/core/src/fxge/android/fpf_skiafont.h b/core/src/fxge/android/fpf_skiafont.h
index 4285e13554..135c830c95 100644
--- a/core/src/fxge/android/fpf_skiafont.h
+++ b/core/src/fxge/android/fpf_skiafont.h
@@ -4,8 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FPF_SKIA_FONT_H_
-#define _FPF_SKIA_FONT_H_
+#ifndef CORE_SRC_FXGE_ANDROID_FPF_SKIAFONT_H_
+#define CORE_SRC_FXGE_ANDROID_FPF_SKIAFONT_H_
+
 #if _FX_OS_ == _FX_ANDROID_
 class CFPF_SkiaFontDescriptor;
 class CFPF_SkiaFontMgr;
@@ -54,4 +55,5 @@ protected:
     FX_DWORD				m_dwRefCount;
 };
 #endif
-#endif
+
+#endif  // CORE_SRC_FXGE_ANDROID_FPF_SKIAFONT_H_
diff --git a/core/src/fxge/android/fpf_skiafontmgr.h b/core/src/fxge/android/fpf_skiafontmgr.h
index 1ec4a1d678..3c072fa186 100644
--- a/core/src/fxge/android/fpf_skiafontmgr.h
+++ b/core/src/fxge/android/fpf_skiafontmgr.h
@@ -4,8 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FPF_SKIA_FONTMGR_H_
-#define _FPF_SKIA_FONTMGR_H_
+#ifndef CORE_SRC_FXGE_ANDROID_FPF_SKIAFONTMGR_H_
+#define CORE_SRC_FXGE_ANDROID_FPF_SKIAFONTMGR_H_
+
 #if _FX_OS_ == _FX_ANDROID_
 #define FPF_SKIAFONTTYPE_Unknown	0
 #define	FPF_SKIAFONTTYPE_Path		1
@@ -114,4 +115,5 @@ protected:
     CFX_MapPtrToPtr		m_FamilyFonts;
 };
 #endif
-#endif
+
+#endif  // CORE_SRC_FXGE_ANDROID_FPF_SKIAFONTMGR_H_
diff --git a/core/src/fxge/android/fpf_skiamodule.h b/core/src/fxge/android/fpf_skiamodule.h
index 7f5375172a..f97aa95d23 100644
--- a/core/src/fxge/android/fpf_skiamodule.h
+++ b/core/src/fxge/android/fpf_skiamodule.h
@@ -4,8 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FPF_MODULE_H_
-#define _FPF_MODULE_H_
+#ifndef CORE_SRC_FXGE_ANDROID_FPF_SKIAMODULE_H_
+#define CORE_SRC_FXGE_ANDROID_FPF_SKIAMODULE_H_
+
 #if _FX_OS_ == _FX_ANDROID_
 class CFPF_SkiaFontMgr;
 class CFPF_SkiaDeviceModule : public IFPF_DeviceModule
@@ -19,4 +20,5 @@ protected:
     CFPF_SkiaFontMgr	*m_pFontMgr;
 };
 #endif
-#endif
+
+#endif  // CORE_SRC_FXGE_ANDROID_FPF_SKIAMODULE_H_
diff --git a/core/src/fxge/android/fx_android_font.h b/core/src/fxge/android/fx_android_font.h
index b6bfdf9396..fb7ff7cd92 100644
--- a/core/src/fxge/android/fx_android_font.h
+++ b/core/src/fxge/android/fx_android_font.h
@@ -4,8 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FX_ANDROID_FONT_H_
-#define _FX_ANDROID_FONT_H_
+#ifndef CORE_SRC_FXGE_ANDROID_FX_ANDROID_FONT_H_
+#define CORE_SRC_FXGE_ANDROID_FX_ANDROID_FONT_H_
+
 #if _FX_OS_ == _FX_ANDROID_
 class IFPF_FontMgr;
 class CFX_AndroidFontInfo : public IFX_SystemFontInfo
@@ -33,4 +34,5 @@ protected:
     IFPF_FontMgr		*m_pFontMgr;
 };
 #endif
-#endif
+
+#endif  // CORE_SRC_FXGE_ANDROID_FX_ANDROID_FONT_H_
diff --git a/core/src/fxge/android/fx_fpf.h b/core/src/fxge/android/fx_fpf.h
index 1108fffed4..beef3c7233 100644
--- a/core/src/fxge/android/fx_fpf.h
+++ b/core/src/fxge/android/fx_fpf.h
@@ -4,11 +4,13 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FX_FPF_H_
-#define _FX_FPF_H_
+#ifndef CORE_SRC_FXGE_ANDROID_FX_FPF_H_
+#define CORE_SRC_FXGE_ANDROID_FX_FPF_H_
+
 #include "../../../include/fxcrt/fx_ext.h"
-#include "../../../include/fxge/fx_ge.h"
-#include "../../../include/fxge/fx_freetype.h"
 #include "../../../include/fxge/fpf.h"
+#include "../../../include/fxge/fx_freetype.h"
+#include "../../../include/fxge/fx_ge.h"
 #include "fx_android_font.h"
-#endif
+
+#endif  // CORE_SRC_FXGE_ANDROID_FX_FPF_H_
diff --git a/core/src/fxge/apple/apple_int.h b/core/src/fxge/apple/apple_int.h
index 6d8260c60f..5b083d83eb 100644
--- a/core/src/fxge/apple/apple_int.h
+++ b/core/src/fxge/apple/apple_int.h
@@ -4,8 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _APPLE_INT_H_
-#define _APPLE_INT_H_
+#ifndef CORE_SRC_FXGE_APPLE_APPLE_INT_H_
+#define CORE_SRC_FXGE_APPLE_APPLE_INT_H_
+
 #if _FXM_PLATFORM_  == _FXM_PLATFORM_APPLE_
 #if _FX_OS_ == _FX_MACOSX_
 #include <Carbon/Carbon.h>
@@ -243,4 +244,5 @@ FX_DWORD  FX_IOSGetMatchFamilyNameHashcode(FX_LPCSTR pFontName);
 FX_UINT32 FX_IOSGetFamilyNamesCount();
 FX_LPCSTR FX_IOSGetFamilyName( FX_UINT32 uIndex);
 #endif
-#endif
+
+#endif  // CORE_SRC_FXGE_APPLE_APPLE_INT_H_
diff --git a/core/src/fxge/dib/dib_int.h b/core/src/fxge/dib/dib_int.h
index 844c3566ce..c82a0378b8 100644
--- a/core/src/fxge/dib/dib_int.h
+++ b/core/src/fxge/dib/dib_int.h
@@ -4,8 +4,8 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _DIB_INT_H_
-#define _DIB_INT_H_
+#ifndef CORE_SRC_FXGE_DIB_DIB_INT_H_
+#define CORE_SRC_FXGE_DIB_DIB_INT_H_
 
 class CPDF_FixedMatrix 
 {
@@ -90,4 +90,4 @@ public:
     int		m_State;
 };
 
-#endif  // _DIB_INT_H_
+#endif  // CORE_SRC_FXGE_DIB_DIB_INT_H_
diff --git a/core/src/fxge/ge/text_int.h b/core/src/fxge/ge/text_int.h
index d6b794a800..34496e8b13 100644
--- a/core/src/fxge/ge/text_int.h
+++ b/core/src/fxge/ge/text_int.h
@@ -4,8 +4,8 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _TEXT_INT_H_
-#define _TEXT_INT_H_
+#ifndef CORE_SRC_FXGE_GE_TEXT_INT_H_
+#define CORE_SRC_FXGE_GE_TEXT_INT_H_
 
 struct _CFX_UniqueKeyGen {
     void		Generate(int count, ...);
@@ -102,4 +102,4 @@ public:
     CFX_ByteString		m_FontTables;
 };
 
-#endif  // _TEXT_INT_H_
+#endif  // CORE_SRC_FXGE_GE_TEXT_INT_H_
diff --git a/core/src/fxge/skia/fx_skia_blitter_new.h b/core/src/fxge/skia/fx_skia_blitter_new.h
index 84fe89dce6..1193e64c1c 100644
--- a/core/src/fxge/skia/fx_skia_blitter_new.h
+++ b/core/src/fxge/skia/fx_skia_blitter_new.h
@@ -2,9 +2,9 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef _FX_SKIABLITTER_H_
-#define _FX_SKIABLITTER_H_
-//#define _SKIA_SUPPORT_
+#ifndef CORE_SRC_FXGE_SKIA_FX_SKIA_BLITTER_NEW_H_
+#define CORE_SRC_FXGE_SKIA_FX_SKIA_BLITTER_NEW_H_
+
 #if defined(_SKIA_SUPPORT_)
 class CFX_SkiaRenderer : public SkBlitter
 {
@@ -226,4 +226,5 @@ public:
 	int m_dstHeight;
 };
 #endif
-#endif
+
+#endif  // CORE_SRC_FXGE_SKIA_FX_SKIA_BLITTER_NEW_H_
diff --git a/core/src/fxge/skia/fx_skia_device.h b/core/src/fxge/skia/fx_skia_device.h
index e92af2269e..7ae019c124 100644
--- a/core/src/fxge/skia/fx_skia_device.h
+++ b/core/src/fxge/skia/fx_skia_device.h
@@ -2,9 +2,9 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef _FX_SKIA_DEVICE_DRIVER_
-#define _FX_SKIA_DEVICE_DRIVER_
-//#define _SKIA_SUPPORT_
+#ifndef CORE_SRC_FXGE_SKIA_FX_SKIA_DEVICE_H_
+#define CORE_SRC_FXGE_SKIA_FX_SKIA_DEVICE_H_
+
 #if defined(_SKIA_SUPPORT_)
 class CFX_SkiaDeviceDriver : public IFX_RenderDeviceDriver
 {
@@ -86,5 +86,6 @@ public:
 
 	CFX_AggDeviceDriver* m_pAggDriver;
 };
-#endif 
-#endif// _FX_SKIA_DEVICE_DRIVER_
\ No newline at end of file
+#endif  // defined(_SKIA_SUPPORT_)
+
+#endif  // CORE_SRC_FXGE_SKIA_FX_SKIA_DEVICE_H_
diff --git a/core/src/fxge/win32/dwrite_int.h b/core/src/fxge/win32/dwrite_int.h
index 2eecc7c76b..d95f115fbc 100644
--- a/core/src/fxge/win32/dwrite_int.h
+++ b/core/src/fxge/win32/dwrite_int.h
@@ -4,8 +4,9 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _FX_DIRECT_WRITE_
-#define _FX_DIRECT_WRITE_
+#ifndef CORE_SRC_FXGE_WIN32_DWRITE_INT_H_
+#define CORE_SRC_FXGE_WIN32_DWRITE_INT_H_
+
 #ifndef DECLSPEC_UUID
 #if (_MSC_VER >= 1100) && defined (__cplusplus)
 #define DECLSPEC_UUID(x)    __declspec(uuid(x))
@@ -56,4 +57,5 @@ protected:
     void*		    m_pDwFontContext;
     void*	        m_pDwTextRenderer;
 };
-#endif
+
+#endif  // CORE_SRC_FXGE_WIN32_DWRITE_INT_H_
diff --git a/core/src/fxge/win32/win32_int.h b/core/src/fxge/win32/win32_int.h
index bc3eb878d9..7c5c0720b1 100644
--- a/core/src/fxge/win32/win32_int.h
+++ b/core/src/fxge/win32/win32_int.h
@@ -3,6 +3,8 @@
 // found in the LICENSE file.
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+#ifndef CORE_SRC_FXGE_WIN32_WIN32_INT_H_
+#define CORE_SRC_FXGE_WIN32_WIN32_INT_H_
 
 struct  WINDIB_Open_Args_;
 class CGdiplusExt
@@ -236,3 +238,5 @@ protected:
     CFX_PSRenderer	m_PSRenderer;
 };
 void _Color2Argb(FX_ARGB& argb, FX_DWORD color, int alpha_flag, void* pIccTransform);
+
+#endif  // CORE_SRC_FXGE_WIN32_WIN32_INT_H_
diff --git a/core/src/reflow/autoreflow.h b/core/src/reflow/autoreflow.h
index 6a137e9ae2..95aebcfcdc 100644
--- a/core/src/reflow/autoreflow.h
+++ b/core/src/reflow/autoreflow.h
@@ -4,10 +4,12 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _AUTOREFLOW_H
-#define _AUTOREFLOW_H
+#ifndef CORE_SRC_REFLOW_AUTOREFLOW_H_
+#define CORE_SRC_REFLOW_AUTOREFLOW_H_
+
 #include "../../include/reflow/reflowengine.h"
 #include "reflowedpage.h"
+
 class CPDF_AutoReflowElement;
 class CPDF_AutoReflowLayoutProvider;
 typedef CFX_ArrayTemplate<CPDF_AutoReflowElement*> CAR_ElmPtrArray;
@@ -119,4 +121,5 @@ public:
     CFX_PtrArray m_cellArray;
     int			m_Step;
 };
-#endif
+
+#endif  // CORE_SRC_REFLOW_AUTOREFLOW_H_
diff --git a/core/src/reflow/layoutprovider_taggedpdf.h b/core/src/reflow/layoutprovider_taggedpdf.h
index b573c3e5bf..3e11f17067 100644
--- a/core/src/reflow/layoutprovider_taggedpdf.h
+++ b/core/src/reflow/layoutprovider_taggedpdf.h
@@ -4,9 +4,11 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef LayoutProvider_TaggedPDF_H
-#define LayoutProvider_TaggedPDF_H
+#ifndef CORE_SRC_REFLOW_LAYOUTPROVIDER_TAGGEDPDF_H_
+#define CORE_SRC_REFLOW_LAYOUTPROVIDER_TAGGEDPDF_H_
+
 #include "../../include/reflow/reflowengine.h"
+
 class CPDF_LayoutElement : public IPDF_LayoutElement
 {
 public:
@@ -79,4 +81,5 @@ protected:
     CPDF_StructTree*	m_pPageTree;
     int					m_TopElementIndex;
 };
-#endif
+
+#endif  // CORE_SRC_REFLOW_LAYOUTPROVIDER_TAGGEDPDF_H_
diff --git a/core/src/reflow/reflowedpage.h b/core/src/reflow/reflowedpage.h
index 5ca7a8d947..3fef553d7a 100644
--- a/core/src/reflow/reflowedpage.h
+++ b/core/src/reflow/reflowedpage.h
@@ -4,9 +4,11 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _REFLOWED_PAGE_H
-#define _REFLOWED_PAGE_H
+#ifndef CORE_SRC_REFLOW_REFLOWEDPAGE_H_
+#define CORE_SRC_REFLOW_REFLOWEDPAGE_H_
+
 #include "../../include/reflow/reflowengine.h"
+
 #define GET_SIGNED(a) ( (a)>0 ? a/a : (a==0 ? 0 : -a/a) )
 class CRF_Data;
 class CRF_LineData;
@@ -368,4 +370,5 @@ public:
     FX_ARGB		m_stroke_argb;
     int			m_fill_mode;
 };
-#endif
+
+#endif  // CORE_SRC_REFLOW_REFLOWEDPAGE_H_
diff --git a/core/src/reflow/reflowedtextpage.h b/core/src/reflow/reflowedtextpage.h
index 397428d178..288ceed48b 100644
--- a/core/src/reflow/reflowedtextpage.h
+++ b/core/src/reflow/reflowedtextpage.h
@@ -4,10 +4,12 @@
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _REFLOWED_TEXT_PAGE_H
-#define _REFLOWED_TEXT_PAGE_H
+#ifndef CORE_SRC_REFLOW_REFLOWEDTEXTPAGE_H_
+#define CORE_SRC_REFLOW_REFLOWEDTEXTPAGE_H_
+
 #include "../../include/reflow/reflowengine.h"
 #include "../../src/reflow/reflowedpage.h"
+
 typedef CFX_SegmentedArray<CRF_CharData*> CRF_CharDataPtrArray;
 typedef CFX_SegmentedArray<FX_INT32> CFX_CountBSINT32Array;
 class CRF_TextPage : public IPDF_TextPage
@@ -68,4 +70,5 @@ private:
     CFX_RectArray			m_rectArray;
     CFX_CountBSINT32Array*	m_CountBSArray;
 };
-#endif
+
+#endif  // CORE_SRC_REFLOW_REFLOWEDTEXTPAGE_H_