16 files changed, 73 insertions, 72 deletions

diff --git a/core/src/fpdfapi/fpdf_edit/fpdf_edit_content.cpp b/core/src/fpdfapi/fpdf_edit/fpdf_edit_content.cpp
index 717386041d..8cfbd1b40e 100644
--- a/core/src/fpdfapi/fpdf_edit/fpdf_edit_content.cpp
+++ b/core/src/fpdfapi/fpdf_edit/fpdf_edit_content.cpp
@@ -106,11 +106,11 @@ void CPDF_PageContentGenerate::ProcessForm(CFX_ByteTextBuf& buf, const uint8_t*
     }
     CPDF_Stream* pStream = new CPDF_Stream(NULL, 0, NULL);
     CPDF_Dictionary* pFormDict = CPDF_Dictionary::Create();
-    pFormDict->SetAtName(FX_BSTR("Type"), FX_BSTR("XObject"));
-    pFormDict->SetAtName(FX_BSTR("Subtype"), FX_BSTR("Form"));
+    pFormDict->SetAtName("Type", "XObject");
+    pFormDict->SetAtName("Subtype", "Form");
     CFX_FloatRect bbox = m_pPage->GetPageBBox();
     matrix.TransformRect(bbox);
-    pFormDict->SetAtRect(FX_BSTR("BBox"), bbox);
+    pFormDict->SetAtRect("BBox", bbox);
     pStream->InitStream((uint8_t*)data, size, pFormDict);
     buf << "q " << matrix << " cm ";
     CFX_ByteString name = RealizeResource(pStream, "XObject");
diff --git a/core/src/fpdfapi/fpdf_edit/fpdf_edit_doc.cpp b/core/src/fpdfapi/fpdf_edit/fpdf_edit_doc.cpp
index 7176a62435..18913a0020 100644
--- a/core/src/fpdfapi/fpdf_edit/fpdf_edit_doc.cpp
+++ b/core/src/fpdfapi/fpdf_edit/fpdf_edit_doc.cpp
@@ -1170,8 +1170,8 @@ void CPDF_Document::DeletePage(int iPage)
     }
     m_PageList.RemoveAt(iPage);
 }
-CPDF_Object* FPDFAPI_GetPageAttr(CPDF_Dictionary* pPageDict, FX_BSTR name);
-void FPDFAPI_FlatPageAttr(CPDF_Dictionary* pPageDict, FX_BSTR name)
+CPDF_Object* FPDFAPI_GetPageAttr(CPDF_Dictionary* pPageDict, const CFX_ByteStringC& name);
+void FPDFAPI_FlatPageAttr(CPDF_Dictionary* pPageDict, const CFX_ByteStringC& name)
 {
     if (pPageDict->KeyExist(name)) {
         return;
diff --git a/core/src/fpdfapi/fpdf_font/font_int.h b/core/src/fpdfapi/fpdf_font/font_int.h
index 6f32f4fa98..aa46f16f75 100644
--- a/core/src/fpdfapi/fpdf_font/font_int.h
+++ b/core/src/fpdfapi/fpdf_font/font_int.h
@@ -57,7 +57,7 @@ public:
     CPDF_CMapParser();
     ~CPDF_CMapParser() {}
     FX_BOOL	Initialize(CPDF_CMap*);
-    void	ParseWord(FX_BSTR str);
+    void	ParseWord(const CFX_ByteStringC& str);
     CFX_BinaryBuf	m_AddMaps;
 private:
     CPDF_CMap*	m_pCMap;
diff --git a/core/src/fpdfapi/fpdf_font/fpdf_font.cpp b/core/src/fpdfapi/fpdf_font/fpdf_font.cpp
index c6922d11f8..48a96dc554 100644
--- a/core/src/fpdfapi/fpdf_font/fpdf_font.cpp
+++ b/core/src/fpdfapi/fpdf_font/fpdf_font.cpp
@@ -391,7 +391,7 @@ int CPDF_Font::GetCharTypeWidth(FX_DWORD charcode)
     return m_Font.GetGlyphWidth(glyph_index);
 }
 int _PDF_GetStandardFontName(CFX_ByteString& name);
-CPDF_Font* CPDF_Font::GetStockFont(CPDF_Document* pDoc, FX_BSTR name)
+CPDF_Font* CPDF_Font::GetStockFont(CPDF_Document* pDoc, const CFX_ByteStringC& name)
 {
     CFX_ByteString fontname(name);
     int font_id = _PDF_GetStandardFontName(fontname);
@@ -532,7 +532,7 @@ FX_DWORD CPDF_ToUnicodeMap::ReverseLookup(FX_WCHAR unicode)
     }
     return 0;
 }
-static FX_DWORD _StringToCode(FX_BSTR str)
+static FX_DWORD _StringToCode(const CFX_ByteStringC& str)
 {
     const FX_CHAR* buf = str.GetCStr();
     int len = str.GetLength();
@@ -584,7 +584,7 @@ static CFX_WideString _StringDataAdd(CFX_WideString str)
     }
     return ret;
 }
-static CFX_WideString _StringToWideString(FX_BSTR str)
+static CFX_WideString _StringToWideString(const CFX_ByteStringC& str)
 {
     const FX_CHAR* buf = str.GetCStr();
     int len = str.GetLength();
diff --git a/core/src/fpdfapi/fpdf_font/fpdf_font_cid.cpp b/core/src/fpdfapi/fpdf_font/fpdf_font_cid.cpp
index bec2c90144..ed5ef5c5fe 100644
--- a/core/src/fpdfapi/fpdf_font/fpdf_font_cid.cpp
+++ b/core/src/fpdfapi/fpdf_font/fpdf_font_cid.cpp
@@ -119,7 +119,7 @@ FX_BOOL	CPDF_CMapParser::Initialize(CPDF_CMap* pCMap)
     m_AddMaps.EstimateSize(0, 10240);
     return TRUE;
 }
-static FX_DWORD CMap_GetCode(FX_BSTR word)
+static FX_DWORD CMap_GetCode(const CFX_ByteStringC& word)
 {
     int num = 0;
     if (word.GetAt(0) == '<') {
@@ -146,7 +146,7 @@ static FX_DWORD CMap_GetCode(FX_BSTR word)
     }
     return num;
 }
-static FX_BOOL _CMap_GetCodeRange(_CMap_CodeRange& range, FX_BSTR first, FX_BSTR second)
+static FX_BOOL _CMap_GetCodeRange(_CMap_CodeRange& range, const CFX_ByteStringC& first, const CFX_ByteStringC& second)
 {
     if (first.GetLength() == 0 || first.GetAt(0) != '<') {
         return FALSE;
@@ -177,11 +177,11 @@ static FX_BOOL _CMap_GetCodeRange(_CMap_CodeRange& range, FX_BSTR first, FX_BSTR
     }
     return TRUE;
 }
-static CFX_ByteString CMap_GetString(FX_BSTR word)
+static CFX_ByteString CMap_GetString(const CFX_ByteStringC& word)
 {
     return word.Mid(1, word.GetLength() - 2);
 }
-void CPDF_CMapParser::ParseWord(FX_BSTR word)
+void CPDF_CMapParser::ParseWord(const CFX_ByteStringC& word)
 {
     if (word.IsEmpty()) {
         return;
diff --git a/core/src/fpdfapi/fpdf_page/fpdf_page.cpp b/core/src/fpdfapi/fpdf_page/fpdf_page.cpp
index 046cebeb98..688066e3a3 100644
--- a/core/src/fpdfapi/fpdf_page/fpdf_page.cpp
+++ b/core/src/fpdfapi/fpdf_page/fpdf_page.cpp
@@ -902,7 +902,7 @@ CPDF_Page::~CPDF_Page()
         pModule->DestroyPageCache(m_pPageRender);
     }
 }
-CPDF_Object* FPDFAPI_GetPageAttr(CPDF_Dictionary* pPageDict, FX_BSTR name)
+CPDF_Object* FPDFAPI_GetPageAttr(CPDF_Dictionary* pPageDict, const CFX_ByteStringC& name)
 {
     int level = 0;
     while (1) {
@@ -921,7 +921,7 @@ CPDF_Object* FPDFAPI_GetPageAttr(CPDF_Dictionary* pPageDict, FX_BSTR name)
         }
     }
 }
-CPDF_Object* CPDF_Page::GetPageAttr(FX_BSTR name) const
+CPDF_Object* CPDF_Page::GetPageAttr(const CFX_ByteStringC& name) const
 {
     return FPDFAPI_GetPageAttr(m_pFormDict, name);
 }
diff --git a/core/src/fpdfapi/fpdf_page/fpdf_page_doc.cpp b/core/src/fpdfapi/fpdf_page/fpdf_page_doc.cpp
index 00ea4c5fce..305c1a9183 100644
--- a/core/src/fpdfapi/fpdf_page/fpdf_page_doc.cpp
+++ b/core/src/fpdfapi/fpdf_page/fpdf_page_doc.cpp
@@ -310,7 +310,7 @@ CPDF_Font* CPDF_DocPageData::GetFont(CPDF_Dictionary* pFontDict, FX_BOOL findOnl
     m_FontMap.SetAt(pFontDict, fontData);
     return pFont;
 }
-CPDF_Font* CPDF_DocPageData::GetStandardFont(FX_BSTR fontName, CPDF_FontEncoding* pEncoding)
+CPDF_Font* CPDF_DocPageData::GetStandardFont(const CFX_ByteStringC& fontName, CPDF_FontEncoding* pEncoding)
 {
     if (fontName.IsEmpty()) {
         return NULL;
diff --git a/core/src/fpdfapi/fpdf_page/fpdf_page_graph_state.cpp b/core/src/fpdfapi/fpdf_page/fpdf_page_graph_state.cpp
index 3ce4baf20c..8752acf536 100644
--- a/core/src/fpdfapi/fpdf_page/fpdf_page_graph_state.cpp
+++ b/core/src/fpdfapi/fpdf_page/fpdf_page_graph_state.cpp
@@ -376,7 +376,7 @@ CPDF_GeneralStateData::~CPDF_GeneralStateData()
         pDocCache->ReleaseTransferFunc(m_pTR);
     }
 }
-static int GetBlendType(FX_BSTR mode)
+static int GetBlendType(const CFX_ByteStringC& mode)
 {
     switch (mode.GetID()) {
         case FXBSTR_ID('N', 'o', 'r', 'm'):
@@ -417,7 +417,7 @@ static int GetBlendType(FX_BSTR mode)
     }
     return FXDIB_BLEND_NORMAL;
 }
-void CPDF_GeneralStateData::SetBlendMode(FX_BSTR blend_mode)
+void CPDF_GeneralStateData::SetBlendMode(const CFX_ByteStringC& blend_mode)
 {
     if (blend_mode.GetLength() > 15) {
         return;
@@ -677,7 +677,7 @@ void CPDF_ContentMarkData::DeleteLastMark()
     }
     m_Marks.RemoveAt(size - 1);
 }
-FX_BOOL CPDF_ContentMark::HasMark(FX_BSTR mark) const
+FX_BOOL CPDF_ContentMark::HasMark(const CFX_ByteStringC& mark) const
 {
     if (m_pObject == NULL) {
         return FALSE;
@@ -690,7 +690,7 @@ FX_BOOL CPDF_ContentMark::HasMark(FX_BSTR mark) const
     }
     return FALSE;
 }
-FX_BOOL CPDF_ContentMark::LookupMark(FX_BSTR mark, CPDF_Dictionary*& pDict) const
+FX_BOOL CPDF_ContentMark::LookupMark(const CFX_ByteStringC& mark, CPDF_Dictionary*& pDict) const
 {
     if (m_pObject == NULL) {
         return FALSE;
diff --git a/core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp b/core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp
index d898feecf4..ebe75484e0 100644
--- a/core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp
+++ b/core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp
@@ -438,7 +438,7 @@ const _FX_BSTR _PDF_InlineValueAbbr[] = {
     _FX_BSTRC("CCITTFaxDecode"), _FX_BSTRC("CCF"),
     _FX_BSTRC("DCTDecode"), _FX_BSTRC("DCT"),
 };
-static CFX_ByteStringC _PDF_FindFullName(const _FX_BSTR* table, int count, FX_BSTR abbr)
+static CFX_ByteStringC _PDF_FindFullName(const _FX_BSTR* table, int count, const CFX_ByteStringC& abbr)
 {
     int i = 0;
     while (i < count) {
@@ -496,7 +496,7 @@ void _PDF_ReplaceAbbr(CPDF_Object* pObj)
             }
     }
 }
-static CFX_ByteStringC _PDF_FindAbbrName(const _FX_BSTR* table, int count, FX_BSTR fullName)
+static CFX_ByteStringC _PDF_FindAbbrName(const _FX_BSTR* table, int count, const CFX_ByteStringC& fullName)
 {
     int i = 0;
     while (i < count) {
@@ -1178,7 +1178,7 @@ void CPDF_StreamContentParser::Handle_SetFont()
         m_pCurStates->m_TextState.SetFont(pFont);
     }
 }
-CPDF_Object* CPDF_StreamContentParser::FindResourceObj(FX_BSTR type, const CFX_ByteString& name)
+CPDF_Object* CPDF_StreamContentParser::FindResourceObj(const CFX_ByteStringC& type, const CFX_ByteString& name)
 {
     if (m_pResources == NULL) {
         return NULL;
diff --git a/core/src/fpdfapi/fpdf_page/pageint.h b/core/src/fpdfapi/fpdf_page/pageint.h
index 9ff1c4cb11..5bf854948a 100644
--- a/core/src/fpdfapi/fpdf_page/pageint.h
+++ b/core/src/fpdfapi/fpdf_page/pageint.h
@@ -205,7 +205,7 @@ public:
     CPDF_Font*			FindFont(const CFX_ByteString& name);
     CPDF_ColorSpace*	FindColorSpace(const CFX_ByteString& name);
     CPDF_Pattern*		FindPattern(const CFX_ByteString& name, FX_BOOL bShading);
-    CPDF_Object*		FindResourceObj(FX_BSTR type, const CFX_ByteString& name);
+    CPDF_Object*		FindResourceObj(const CFX_ByteStringC& type, const CFX_ByteString& name);
     void Handle_CloseFillStrokePath();
     void Handle_FillStrokePath();
     void Handle_CloseEOFillStrokePath();
@@ -367,7 +367,7 @@ public:
     ~CPDF_DocPageData();
     void                        Clear(FX_BOOL bRelease = FALSE);
     CPDF_Font*                  GetFont(CPDF_Dictionary* pFontDict, FX_BOOL findOnly);
-    CPDF_Font*                  GetStandardFont(FX_BSTR fontName, CPDF_FontEncoding* pEncoding);
+    CPDF_Font*                  GetStandardFont(const CFX_ByteStringC& fontName, CPDF_FontEncoding* pEncoding);
     void                        ReleaseFont(CPDF_Dictionary* pFontDict);
     CPDF_ColorSpace*            GetColorSpace(CPDF_Object* pCSObj, CPDF_Dictionary* pResources);
     CPDF_ColorSpace*            GetCopiedColorSpace(CPDF_Object* pCSObj);
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_encrypt.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_encrypt.cpp
index 973a14e33b..b4366ba277 100644
--- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_encrypt.cpp
+++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_encrypt.cpp
@@ -103,7 +103,7 @@ FX_DWORD CPDF_StandardSecurityHandler::GetPermissions()
 {
     return m_Permissions;
 }
-static FX_BOOL _LoadCryptInfo(CPDF_Dictionary* pEncryptDict, FX_BSTR name, int& cipher, int& keylen)
+static FX_BOOL _LoadCryptInfo(CPDF_Dictionary* pEncryptDict, const CFX_ByteStringC& name, int& cipher, int& keylen)
 {
     int Version = pEncryptDict->GetInteger(FX_BSTRC("V"));
     cipher = FXCIPHER_RC4;
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_filters.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_filters.cpp
index 97e68b5c0c..f0cabe5412 100644
--- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_filters.cpp
+++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_filters.cpp
@@ -66,7 +66,7 @@ void CFX_DataFilter::ReportEOF(FX_DWORD left_input)
     m_bEOF = TRUE;
     m_SrcPos -= left_input;
 }
-CFX_DataFilter* FPDF_CreateFilter(FX_BSTR name, const CPDF_Dictionary* pParam, int width, int height)
+CFX_DataFilter* FPDF_CreateFilter(const CFX_ByteStringC& name, const CPDF_Dictionary* pParam, int width, int height)
 {
     FX_DWORD id = name.GetID();
     switch (id) {
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp
index 5cc06e7929..8533859bef 100644
--- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp
+++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp
@@ -353,11 +353,11 @@ CPDF_Number::CPDF_Number(FX_BOOL bInteger, void* pData)
     : CPDF_Object(PDFOBJ_NUMBER), m_bInteger(bInteger), m_Integer(*(int*)pData) {
 }
 
-CPDF_Number::CPDF_Number(FX_BSTR str) : CPDF_Object(PDFOBJ_NUMBER) {
+CPDF_Number::CPDF_Number(const CFX_ByteStringC& str) : CPDF_Object(PDFOBJ_NUMBER) {
     FX_atonum(str, m_bInteger, &m_Integer);
 }
 
-void CPDF_Number::SetString(FX_BSTR str)
+void CPDF_Number::SetString(const CFX_ByteStringC& str)
 {
     FX_atonum(str, m_bInteger, &m_Integer);
 }
@@ -588,19 +588,19 @@ CPDF_Object* CPDF_Dictionary::GetNextElement(FX_POSITION& pos, CFX_ByteString& k
     m_Map.GetNextAssoc(pos, key, (void*&)p);
     return p;
 }
-CPDF_Object* CPDF_Dictionary::GetElement(FX_BSTR key) const
+CPDF_Object* CPDF_Dictionary::GetElement(const CFX_ByteStringC& key) const
 {
     CPDF_Object* p = NULL;
     m_Map.Lookup(key, (void*&)p);
     return p;
 }
-CPDF_Object* CPDF_Dictionary::GetElementValue(FX_BSTR key) const
+CPDF_Object* CPDF_Dictionary::GetElementValue(const CFX_ByteStringC& key) const
 {
     CPDF_Object* p = NULL;
     m_Map.Lookup(key, (void*&)p);
     return p ? p->GetDirect() : NULL;
 }
-CFX_ByteString CPDF_Dictionary::GetString(FX_BSTR key) const
+CFX_ByteString CPDF_Dictionary::GetString(const CFX_ByteStringC& key) const
 {
     CPDF_Object* p = NULL;
     m_Map.Lookup(key, (void*&)p);
@@ -609,7 +609,7 @@ CFX_ByteString CPDF_Dictionary::GetString(FX_BSTR key) const
     else
         return CFX_ByteString();
 }
-CFX_ByteStringC CPDF_Dictionary::GetConstString(FX_BSTR key) const
+CFX_ByteStringC CPDF_Dictionary::GetConstString(const CFX_ByteStringC& key) const
 {
     CPDF_Object* p = NULL;
     m_Map.Lookup(key, (void*&)p);
@@ -618,7 +618,7 @@ CFX_ByteStringC CPDF_Dictionary::GetConstString(FX_BSTR key) const
     else
         return CFX_ByteStringC();
 }
-CFX_WideString CPDF_Dictionary::GetUnicodeText(FX_BSTR key, CFX_CharMap* pCharMap) const
+CFX_WideString CPDF_Dictionary::GetUnicodeText(const CFX_ByteStringC& key, CFX_CharMap* pCharMap) const
 {
     CPDF_Object* p = NULL;
     m_Map.Lookup(key, (void*&)p);
@@ -634,7 +634,7 @@ CFX_WideString CPDF_Dictionary::GetUnicodeText(FX_BSTR key, CFX_CharMap* pCharMa
     }
     return CFX_WideString();
 }
-CFX_ByteString CPDF_Dictionary::GetString(FX_BSTR key, FX_BSTR def) const
+CFX_ByteString CPDF_Dictionary::GetString(const CFX_ByteStringC& key, const CFX_ByteStringC& def) const
 {
     CPDF_Object* p = NULL;
     m_Map.Lookup(key, (void*&)p);
@@ -643,7 +643,7 @@ CFX_ByteString CPDF_Dictionary::GetString(FX_BSTR key, FX_BSTR def) const
     }
     return CFX_ByteString(def);
 }
-CFX_ByteStringC CPDF_Dictionary::GetConstString(FX_BSTR key, FX_BSTR def) const
+CFX_ByteStringC CPDF_Dictionary::GetConstString(const CFX_ByteStringC& key, const CFX_ByteStringC& def) const
 {
     CPDF_Object* p = NULL;
     m_Map.Lookup(key, (void*&)p);
@@ -652,7 +652,7 @@ CFX_ByteStringC CPDF_Dictionary::GetConstString(FX_BSTR key, FX_BSTR def) const
     else
         return CFX_ByteStringC(def);
 }
-int CPDF_Dictionary::GetInteger(FX_BSTR key) const
+int CPDF_Dictionary::GetInteger(const CFX_ByteStringC& key) const
 {
     CPDF_Object* p = NULL;
     m_Map.Lookup(key, (void*&)p);
@@ -661,7 +661,7 @@ int CPDF_Dictionary::GetInteger(FX_BSTR key) const
     }
     return 0;
 }
-int CPDF_Dictionary::GetInteger(FX_BSTR key, int def) const
+int CPDF_Dictionary::GetInteger(const CFX_ByteStringC& key, int def) const
 {
     CPDF_Object* p = NULL;
     m_Map.Lookup(key, (void*&)p);
@@ -670,7 +670,7 @@ int CPDF_Dictionary::GetInteger(FX_BSTR key, int def) const
     }
     return def;
 }
-FX_FLOAT CPDF_Dictionary::GetNumber(FX_BSTR key) const
+FX_FLOAT CPDF_Dictionary::GetNumber(const CFX_ByteStringC& key) const
 {
     CPDF_Object* p = NULL;
     m_Map.Lookup(key, (void*&)p);
@@ -679,7 +679,7 @@ FX_FLOAT CPDF_Dictionary::GetNumber(FX_BSTR key) const
     }
     return 0;
 }
-FX_BOOL CPDF_Dictionary::GetBoolean(FX_BSTR key, FX_BOOL bDefault) const
+FX_BOOL CPDF_Dictionary::GetBoolean(const CFX_ByteStringC& key, FX_BOOL bDefault) const
 {
     CPDF_Object* p = NULL;
     m_Map.Lookup(key, (void*&)p);
@@ -688,7 +688,7 @@ FX_BOOL CPDF_Dictionary::GetBoolean(FX_BSTR key, FX_BOOL bDefault) const
     }
     return bDefault;
 }
-CPDF_Dictionary* CPDF_Dictionary::GetDict(FX_BSTR key) const
+CPDF_Dictionary* CPDF_Dictionary::GetDict(const CFX_ByteStringC& key) const
 {
     CPDF_Object* p = GetElementValue(key);
     if (p == NULL) {
@@ -700,7 +700,7 @@ CPDF_Dictionary* CPDF_Dictionary::GetDict(FX_BSTR key) const
     }
     return NULL;
 }
-CPDF_Array* CPDF_Dictionary::GetArray(FX_BSTR key) const
+CPDF_Array* CPDF_Dictionary::GetArray(const CFX_ByteStringC& key) const
 {
     CPDF_Object* p = GetElementValue(key);
     if (p == NULL || p->GetType() != PDFOBJ_ARRAY) {
@@ -708,7 +708,7 @@ CPDF_Array* CPDF_Dictionary::GetArray(FX_BSTR key) const
     }
     return (CPDF_Array*)p;
 }
-CPDF_Stream* CPDF_Dictionary::GetStream(FX_BSTR key) const
+CPDF_Stream* CPDF_Dictionary::GetStream(const CFX_ByteStringC& key) const
 {
     CPDF_Object* p = GetElementValue(key);
     if (p == NULL || p->GetType() != PDFOBJ_STREAM) {
@@ -716,7 +716,7 @@ CPDF_Stream* CPDF_Dictionary::GetStream(FX_BSTR key) const
     }
     return (CPDF_Stream*)p;
 }
-CFX_FloatRect CPDF_Dictionary::GetRect(FX_BSTR key) const
+CFX_FloatRect CPDF_Dictionary::GetRect(const CFX_ByteStringC& key) const
 {
     CFX_FloatRect rect;
     CPDF_Array* pArray = GetArray(key);
@@ -725,7 +725,7 @@ CFX_FloatRect CPDF_Dictionary::GetRect(FX_BSTR key) const
     }
     return rect;
 }
-CFX_AffineMatrix CPDF_Dictionary::GetMatrix(FX_BSTR key) const
+CFX_AffineMatrix CPDF_Dictionary::GetMatrix(const CFX_ByteStringC& key) const
 {
     CFX_AffineMatrix matrix;
     CPDF_Array* pArray = GetArray(key);
@@ -734,12 +734,12 @@ CFX_AffineMatrix CPDF_Dictionary::GetMatrix(FX_BSTR key) const
     }
     return matrix;
 }
-FX_BOOL CPDF_Dictionary::KeyExist(FX_BSTR key) const
+FX_BOOL CPDF_Dictionary::KeyExist(const CFX_ByteStringC& key) const
 {
     void* value;
     return m_Map.Lookup(key, value);
 }
-void CPDF_Dictionary::SetAt(FX_BSTR key, CPDF_Object* pObj, CPDF_IndirectObjects* pObjs)
+void CPDF_Dictionary::SetAt(const CFX_ByteStringC& key, CPDF_Object* pObj, CPDF_IndirectObjects* pObjs)
 {
     ASSERT(m_Type == PDFOBJ_DICTIONARY);
     CPDF_Object* p = NULL;
@@ -759,12 +759,12 @@ void CPDF_Dictionary::SetAt(FX_BSTR key, CPDF_Object* pObj, CPDF_IndirectObjects
         m_Map.RemoveKey(key);
     }
 }
-void CPDF_Dictionary::AddValue(FX_BSTR key, CPDF_Object* pObj)
+void CPDF_Dictionary::AddValue(const CFX_ByteStringC& key, CPDF_Object* pObj)
 {
     ASSERT(m_Type == PDFOBJ_DICTIONARY);
     m_Map.AddValue(key, pObj);
 }
-void CPDF_Dictionary::RemoveAt(FX_BSTR key)
+void CPDF_Dictionary::RemoveAt(const CFX_ByteStringC& key)
 {
     ASSERT(m_Type == PDFOBJ_DICTIONARY);
     CPDF_Object* p = NULL;
@@ -775,7 +775,7 @@ void CPDF_Dictionary::RemoveAt(FX_BSTR key)
     p->Release();
     m_Map.RemoveKey(key);
 }
-void CPDF_Dictionary::ReplaceKey(FX_BSTR oldkey, FX_BSTR newkey)
+void CPDF_Dictionary::ReplaceKey(const CFX_ByteStringC& oldkey, const CFX_ByteStringC& newkey)
 {
     ASSERT(m_Type == PDFOBJ_DICTIONARY);
     CPDF_Object* p = NULL;
@@ -807,37 +807,37 @@ FX_BOOL CPDF_Dictionary::Identical(CPDF_Dictionary* pOther) const
     }
     return TRUE;
 }
-void CPDF_Dictionary::SetAtInteger(FX_BSTR key, int i)
+void CPDF_Dictionary::SetAtInteger(const CFX_ByteStringC& key, int i)
 {
     SetAt(key, new CPDF_Number(i));
 }
-void CPDF_Dictionary::SetAtName(FX_BSTR key, const CFX_ByteString& name)
+void CPDF_Dictionary::SetAtName(const CFX_ByteStringC& key, const CFX_ByteString& name)
 {
     SetAt(key, new CPDF_Name(name));
 }
-void CPDF_Dictionary::SetAtString(FX_BSTR key, const CFX_ByteString& str)
+void CPDF_Dictionary::SetAtString(const CFX_ByteStringC& key, const CFX_ByteString& str)
 {
     SetAt(key, new CPDF_String(str));
 }
-void CPDF_Dictionary::SetAtReference(FX_BSTR key, CPDF_IndirectObjects* pDoc, FX_DWORD objnum)
+void CPDF_Dictionary::SetAtReference(const CFX_ByteStringC& key, CPDF_IndirectObjects* pDoc, FX_DWORD objnum)
 {
     SetAt(key, new CPDF_Reference(pDoc, objnum));
 }
-void CPDF_Dictionary::AddReference(FX_BSTR key, CPDF_IndirectObjects* pDoc, FX_DWORD objnum)
+void CPDF_Dictionary::AddReference(const CFX_ByteStringC& key, CPDF_IndirectObjects* pDoc, FX_DWORD objnum)
 {
     AddValue(key, new CPDF_Reference(pDoc, objnum));
 }
-void CPDF_Dictionary::SetAtNumber(FX_BSTR key, FX_FLOAT f)
+void CPDF_Dictionary::SetAtNumber(const CFX_ByteStringC& key, FX_FLOAT f)
 {
     CPDF_Number* pNumber = new CPDF_Number;
     pNumber->SetNumber(f);
     SetAt(key, pNumber);
 }
-void CPDF_Dictionary::SetAtBoolean(FX_BSTR key, FX_BOOL bValue)
+void CPDF_Dictionary::SetAtBoolean(const CFX_ByteStringC& key, FX_BOOL bValue)
 {
     SetAt(key, new CPDF_Boolean(bValue));
 }
-void CPDF_Dictionary::SetAtRect(FX_BSTR key, const CFX_FloatRect& rect)
+void CPDF_Dictionary::SetAtRect(const CFX_ByteStringC& key, const CFX_FloatRect& rect)
 {
     CPDF_Array* pArray = new CPDF_Array;
     pArray->AddNumber(rect.left);
@@ -846,7 +846,7 @@ void CPDF_Dictionary::SetAtRect(FX_BSTR key, const CFX_FloatRect& rect)
     pArray->AddNumber(rect.top);
     SetAt(key, pArray);
 }
-void CPDF_Dictionary::SetAtMatrix(FX_BSTR key, const CFX_AffineMatrix& matrix)
+void CPDF_Dictionary::SetAtMatrix(const CFX_ByteStringC& key, const CFX_AffineMatrix& matrix)
 {
     CPDF_Array* pArray = new CPDF_Array;
     pArray->AddNumber16(matrix.a);
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp
index 09c5c39e4f..f4fa8ff499 100644
--- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp
+++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp
@@ -335,7 +335,7 @@ FX_FILESIZE CPDF_Parser::GetObjectOffset(FX_DWORD objnum)
     }
     return 0;
 }
-static int32_t GetDirectInteger(CPDF_Dictionary* pDict, FX_BSTR key)
+static int32_t GetDirectInteger(CPDF_Dictionary* pDict, const CFX_ByteStringC& key)
 {
     CPDF_Object* pObj = pDict->GetElement(key);
     if (pObj == NULL) {
@@ -346,7 +346,7 @@ static int32_t GetDirectInteger(CPDF_Dictionary* pDict, FX_BSTR key)
     }
     return 0;
 }
-static FX_BOOL CheckDirectType(CPDF_Dictionary* pDict, FX_BSTR key, int32_t iType)
+static FX_BOOL CheckDirectType(CPDF_Dictionary* pDict, const CFX_ByteStringC& key, int32_t iType)
 {
     CPDF_Object* pObj = pDict->GetElement(key);
     if (!pObj) {
@@ -2549,7 +2549,7 @@ FX_BOOL CPDF_SyntaxParser::IsWholeWord(FX_FILESIZE startpos, FX_FILESIZE limit,
     }
     return TRUE;
 }
-FX_BOOL CPDF_SyntaxParser::SearchWord(FX_BSTR tag, FX_BOOL bWholeWord, FX_BOOL bForward, FX_FILESIZE limit)
+FX_BOOL CPDF_SyntaxParser::SearchWord(const CFX_ByteStringC& tag, FX_BOOL bWholeWord, FX_BOOL bForward, FX_FILESIZE limit)
 {
     int32_t taglen = tag.GetLength();
     if (taglen == 0) {
@@ -2620,7 +2620,7 @@ struct _SearchTagRecord {
     FX_DWORD	m_Len;
     FX_DWORD	m_Offset;
 };
-int32_t CPDF_SyntaxParser::SearchMultiWord(FX_BSTR tags, FX_BOOL bWholeWord, FX_FILESIZE limit)
+int32_t CPDF_SyntaxParser::SearchMultiWord(const CFX_ByteStringC& tags, FX_BOOL bWholeWord, FX_FILESIZE limit)
 {
     int32_t ntags = 1, i;
     for (i = 0; i < tags.GetLength(); i ++)
@@ -2682,7 +2682,7 @@ end:
     FX_Free(pPatterns);
     return found;
 }
-FX_FILESIZE CPDF_SyntaxParser::FindTag(FX_BSTR tag, FX_FILESIZE limit)
+FX_FILESIZE CPDF_SyntaxParser::FindTag(const CFX_ByteStringC& tag, FX_FILESIZE limit)
 {
     int32_t taglen = tag.GetLength();
     int32_t match = 0;
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_utility.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_utility.cpp
index e6474550a2..61134f5df4 100644
--- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_utility.cpp
+++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_utility.cpp
@@ -49,7 +49,7 @@ CPDF_SimpleParser::CPDF_SimpleParser(const uint8_t* pData, FX_DWORD dwSize)
     m_dwSize = dwSize;
     m_dwCurPos = 0;
 }
-CPDF_SimpleParser::CPDF_SimpleParser(FX_BSTR str)
+CPDF_SimpleParser::CPDF_SimpleParser(const CFX_ByteStringC& str)
 {
     m_pData = str.GetPtr();
     m_dwSize = str.GetLength();
@@ -194,7 +194,7 @@ CFX_ByteStringC CPDF_SimpleParser::GetWord()
     }
     return CFX_ByteStringC(pStart, dwSize);
 }
-FX_BOOL CPDF_SimpleParser::SearchToken(FX_BSTR token)
+FX_BOOL CPDF_SimpleParser::SearchToken(const CFX_ByteStringC& token)
 {
     int token_len = token.GetLength();
     while (m_dwCurPos < m_dwSize - token_len) {
@@ -209,7 +209,7 @@ FX_BOOL CPDF_SimpleParser::SearchToken(FX_BSTR token)
     m_dwCurPos += token_len;
     return TRUE;
 }
-FX_BOOL CPDF_SimpleParser::SkipWord(FX_BSTR token)
+FX_BOOL CPDF_SimpleParser::SkipWord(const CFX_ByteStringC& token)
 {
     while (1) {
         CFX_ByteStringC word = GetWord();
@@ -222,7 +222,7 @@ FX_BOOL CPDF_SimpleParser::SkipWord(FX_BSTR token)
     }
     return FALSE;
 }
-FX_BOOL CPDF_SimpleParser::FindTagPair(FX_BSTR start_token, FX_BSTR end_token,
+FX_BOOL CPDF_SimpleParser::FindTagPair(const CFX_ByteStringC& start_token, const CFX_ByteStringC& end_token,
                                        FX_DWORD& start_pos, FX_DWORD& end_pos)
 {
     if (!start_token.IsEmpty()) {
@@ -243,7 +243,7 @@ FX_BOOL CPDF_SimpleParser::FindTagPair(FX_BSTR start_token, FX_BSTR end_token,
     }
     return FALSE;
 }
-FX_BOOL CPDF_SimpleParser::FindTagParam(FX_BSTR token, int nParams)
+FX_BOOL CPDF_SimpleParser::FindTagParam(const CFX_ByteStringC& token, int nParams)
 {
     nParams ++;
     FX_DWORD* pBuf = FX_Alloc(FX_DWORD, nParams);
@@ -287,7 +287,7 @@ static int _hex2dec(char ch)
     }
     return 0;
 }
-CFX_ByteString PDF_NameDecode(FX_BSTR bstr)
+CFX_ByteString PDF_NameDecode(const CFX_ByteStringC& bstr)
 {
     int size = bstr.GetLength();
     const FX_CHAR* pSrc = bstr.GetCStr();
diff --git a/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp b/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp
index 2cbe2e8eb6..5851aabbe0 100644
--- a/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp
+++ b/core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp
@@ -603,8 +603,9 @@ int CPDF_DIBSource::CreateDecoder()
     if (decoder == FX_BSTRC("CCITTFaxDecode")) {
         m_pDecoder = FPDFAPI_CreateFaxDecoder(src_data, src_size, m_Width, m_Height, pParams);
     } else if (decoder == FX_BSTRC("DCTDecode")) {
-        m_pDecoder = CPDF_ModuleMgr::Get()->GetJpegModule()->CreateDecoder(src_data, src_size, m_Width, m_Height,
-                     m_nComponents, pParams ? pParams->GetInteger(FX_BSTR("ColorTransform"), 1) : 1);
+        m_pDecoder = CPDF_ModuleMgr::Get()->GetJpegModule()->CreateDecoder(
+            src_data, src_size, m_Width, m_Height, m_nComponents,
+            pParams ? pParams->GetInteger("ColorTransform", 1) : 1);
         if (!m_pDecoder) {
             FX_BOOL bTransform = FALSE;
             int comps, bpc;