Remove FX_BSTRC.

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1521563002 .

12 files changed, 169 insertions, 187 deletions

diff --git a/core/src/fpdfdoc/doc_action.cpp b/core/src/fpdfdoc/doc_action.cpp
index 01fb064e47..3ad746067d 100644
--- a/core/src/fpdfdoc/doc_action.cpp
+++ b/core/src/fpdfdoc/doc_action.cpp
@@ -19,7 +19,7 @@ CPDF_Dest CPDF_Action::GetDest(CPDF_Document* pDoc) const {
     return CPDF_Dest();
   }
   if (pDest->IsString() || pDest->IsName()) {
-    CPDF_NameTree name_tree(pDoc, FX_BSTRC("Dests"));
+    CPDF_NameTree name_tree(pDoc, "Dests");
     CFX_ByteStringC name = pDest->GetString();
     return CPDF_Dest(name_tree.LookupNamedDest(pDoc, name));
   }
@@ -58,9 +58,9 @@ CFX_WideString CPDF_Action::GetFilePath() const {
   CFX_WideString path;
   if (pFile == NULL) {
     if (type == "Launch") {
-      CPDF_Dictionary* pWinDict = m_pDict->GetDict(FX_BSTRC("Win"));
+      CPDF_Dictionary* pWinDict = m_pDict->GetDict("Win");
       if (pWinDict) {
-        return CFX_WideString::FromLocal(pWinDict->GetString(FX_BSTRC("F")));
+        return CFX_WideString::FromLocal(pWinDict->GetString("F"));
       }
     }
     return path;
@@ -81,7 +81,7 @@ CFX_ByteString CPDF_Action::GetURI(CPDF_Document* pDoc) const {
   CPDF_Dictionary* pRoot = pDoc->GetRoot();
   CPDF_Dictionary* pURI = pRoot->GetDict("URI");
   if (pURI != NULL) {
-    if (csURI.Find(FX_BSTRC(":"), 0) < 1) {
+    if (csURI.Find(":", 0) < 1) {
       csURI = pURI->GetString("Base") + csURI;
     }
   }
@@ -189,10 +189,10 @@ CPDF_Dictionary* CPDF_Action::GetAnnot() const {
     return nullptr;
   }
   CFX_ByteString csType = m_pDict->GetString("S");
-  if (csType == FX_BSTRC("Rendition")) {
+  if (csType == "Rendition") {
     return m_pDict->GetDict("AN");
   }
-  if (csType == FX_BSTRC("Movie")) {
+  if (csType == "Movie") {
     return m_pDict->GetDict("Annotation");
   }
   return nullptr;
@@ -202,21 +202,21 @@ int32_t CPDF_Action::GetOperationType() const {
     return 0;
   }
   CFX_ByteString csType = m_pDict->GetString("S");
-  if (csType == FX_BSTRC("Rendition")) {
+  if (csType == "Rendition") {
     return m_pDict->GetInteger("OP");
   }
-  if (csType == FX_BSTRC("Movie")) {
+  if (csType == "Movie") {
     CFX_ByteString csOP = m_pDict->GetString("Operation");
-    if (csOP == FX_BSTRC("Play")) {
+    if (csOP == "Play") {
       return 0;
     }
-    if (csOP == FX_BSTRC("Stop")) {
+    if (csOP == "Stop") {
       return 1;
     }
-    if (csOP == FX_BSTRC("Pause")) {
+    if (csOP == "Pause") {
       return 2;
     }
-    if (csOP == FX_BSTRC("Resume")) {
+    if (csOP == "Resume") {
       return 3;
     }
   }
@@ -299,13 +299,13 @@ CPDF_DocJSActions::CPDF_DocJSActions(CPDF_Document* pDoc) : m_pDocument(pDoc) {}
 
 int CPDF_DocJSActions::CountJSActions() const {
   ASSERT(m_pDocument != NULL);
-  CPDF_NameTree name_tree(m_pDocument, FX_BSTRC("JavaScript"));
+  CPDF_NameTree name_tree(m_pDocument, "JavaScript");
   return name_tree.GetCount();
 }
 CPDF_Action CPDF_DocJSActions::GetJSAction(int index,
                                            CFX_ByteString& csName) const {
   ASSERT(m_pDocument != NULL);
-  CPDF_NameTree name_tree(m_pDocument, FX_BSTRC("JavaScript"));
+  CPDF_NameTree name_tree(m_pDocument, "JavaScript");
   CPDF_Object* pAction = name_tree.LookupValue(index, csName);
   if (!ToDictionary(pAction)) {
     return CPDF_Action();
@@ -314,7 +314,7 @@ CPDF_Action CPDF_DocJSActions::GetJSAction(int index,
 }
 CPDF_Action CPDF_DocJSActions::GetJSAction(const CFX_ByteString& csName) const {
   ASSERT(m_pDocument != NULL);
-  CPDF_NameTree name_tree(m_pDocument, FX_BSTRC("JavaScript"));
+  CPDF_NameTree name_tree(m_pDocument, "JavaScript");
   CPDF_Object* pAction = name_tree.LookupValue(csName);
   if (!ToDictionary(pAction)) {
     return CPDF_Action();
@@ -323,6 +323,6 @@ CPDF_Action CPDF_DocJSActions::GetJSAction(const CFX_ByteString& csName) const {
 }
 int CPDF_DocJSActions::FindJSAction(const CFX_ByteString& csName) const {
   ASSERT(m_pDocument != NULL);
-  CPDF_NameTree name_tree(m_pDocument, FX_BSTRC("JavaScript"));
+  CPDF_NameTree name_tree(m_pDocument, "JavaScript");
   return name_tree.GetIndex(csName);
 }
diff --git a/core/src/fpdfdoc/doc_annot.cpp b/core/src/fpdfdoc/doc_annot.cpp
index 26ea45fd9d..cacd650dde 100644
--- a/core/src/fpdfdoc/doc_annot.cpp
+++ b/core/src/fpdfdoc/doc_annot.cpp
@@ -34,8 +34,7 @@ CPDF_AnnotList::CPDF_AnnotList(CPDF_Page* pPage)
       pDict = pAnnots->GetDict(i);
     }
     m_AnnotList.push_back(new CPDF_Annot(pDict, this));
-    if (bRegenerateAP &&
-        pDict->GetConstString(FX_BSTRC("Subtype")) == FX_BSTRC("Widget") &&
+    if (bRegenerateAP && pDict->GetConstString("Subtype") == "Widget" &&
         CPDF_InterForm::UpdatingAPEnabled()) {
       FPDF_GenerateAP(m_pDocument, pDict);
     }
@@ -74,7 +73,7 @@ void CPDF_AnnotList::DisplayPass(const CPDF_Page* pPage,
       IPDF_OCContext* pOCContext = pOptions->m_pOCContext;
       CPDF_Dictionary* pAnnotDict = pAnnot->GetAnnotDict();
       if (pOCContext && pAnnotDict &&
-          !pOCContext->CheckOCGVisible(pAnnotDict->GetDict(FX_BSTRC("OC")))) {
+          !pOCContext->CheckOCGVisible(pAnnotDict->GetDict("OC"))) {
         continue;
       }
     }
@@ -119,7 +118,7 @@ void CPDF_AnnotList::DisplayAnnots(const CPDF_Page* pPage,
 CPDF_Annot::CPDF_Annot(CPDF_Dictionary* pDict, CPDF_AnnotList* pList)
     : m_pAnnotDict(pDict),
       m_pList(pList),
-      m_sSubtype(m_pAnnotDict->GetConstString(FX_BSTRC("Subtype"))) {}
+      m_sSubtype(m_pAnnotDict->GetConstString("Subtype")) {}
 CPDF_Annot::~CPDF_Annot() {
   ClearCachedAP();
 }
@@ -168,13 +167,13 @@ CPDF_Stream* FPDFDOC_GetAnnotAP(CPDF_Dictionary* pAnnotDict,
   if (CPDF_Dictionary* pDict = psub->AsDictionary()) {
     CFX_ByteString as = pAnnotDict->GetString("AS");
     if (as.IsEmpty()) {
-      CFX_ByteString value = pAnnotDict->GetString(FX_BSTRC("V"));
+      CFX_ByteString value = pAnnotDict->GetString("V");
       if (value.IsEmpty()) {
-        CPDF_Dictionary* pDict = pAnnotDict->GetDict(FX_BSTRC("Parent"));
-        value = pDict ? pDict->GetString(FX_BSTRC("V")) : CFX_ByteString();
+        CPDF_Dictionary* pDict = pAnnotDict->GetDict("Parent");
+        value = pDict ? pDict->GetString("V") : CFX_ByteString();
       }
       if (value.IsEmpty() || !pDict->KeyExist(value))
-        as = FX_BSTRC("Off");
+        as = "Off";
       else
         as = value;
     }
@@ -208,8 +207,8 @@ static CPDF_Form* FPDFDOC_Annot_GetMatrix(const CPDF_Page* pPage,
   if (!pForm) {
     return NULL;
   }
-  CFX_FloatRect form_bbox = pForm->m_pFormDict->GetRect(FX_BSTRC("BBox"));
-  CFX_Matrix form_matrix = pForm->m_pFormDict->GetMatrix(FX_BSTRC("Matrix"));
+  CFX_FloatRect form_bbox = pForm->m_pFormDict->GetRect("BBox");
+  CFX_Matrix form_matrix = pForm->m_pFormDict->GetMatrix("Matrix");
   form_matrix.TransformRect(form_bbox);
   CPDF_Rect arect;
   pAnnot->GetRect(arect);
diff --git a/core/src/fpdfdoc/doc_ap.cpp b/core/src/fpdfdoc/doc_ap.cpp
index bbac32f404..effe587090 100644
--- a/core/src/fpdfdoc/doc_ap.cpp
+++ b/core/src/fpdfdoc/doc_ap.cpp
@@ -11,8 +11,7 @@
 #include "pdf_vt.h"
 
 FX_BOOL FPDF_GenerateAP(CPDF_Document* pDoc, CPDF_Dictionary* pAnnotDict) {
-  if (!pAnnotDict ||
-      pAnnotDict->GetConstString("Subtype") != FX_BSTRC("Widget")) {
+  if (!pAnnotDict || pAnnotDict->GetConstString("Subtype") != "Widget") {
     return FALSE;
   }
   CFX_ByteString field_type = FPDF_GetFieldAttr(pAnnotDict, "FT")->GetString();
@@ -292,16 +291,16 @@ static FX_BOOL GenerateWidgetAP(CPDF_Document* pDoc,
   CPVT_Color crText = ParseColor(DA);
   FX_BOOL bUseFormRes = FALSE;
   CPDF_Dictionary* pFontDict = NULL;
-  CPDF_Dictionary* pDRDict = pAnnotDict->GetDict(FX_BSTRC("DR"));
+  CPDF_Dictionary* pDRDict = pAnnotDict->GetDict("DR");
   if (pDRDict == NULL) {
-    pDRDict = pFormDict->GetDict(FX_BSTRC("DR"));
+    pDRDict = pFormDict->GetDict("DR");
     bUseFormRes = TRUE;
   }
   CPDF_Dictionary* pDRFontDict = NULL;
   if (pDRDict && (pDRFontDict = pDRDict->GetDict("Font"))) {
     pFontDict = pDRFontDict->GetDict(sFontName.Mid(1));
     if (!pFontDict && !bUseFormRes) {
-      pDRDict = pFormDict->GetDict(FX_BSTRC("DR"));
+      pDRDict = pFormDict->GetDict("DR");
       pDRFontDict = pDRDict->GetDict("Font");
       if (pDRFontDict) {
         pFontDict = pDRFontDict->GetDict(sFontName.Mid(1));
@@ -316,10 +315,10 @@ static FX_BOOL GenerateWidgetAP(CPDF_Document* pDoc,
     if (pFontDict == NULL) {
       return FALSE;
     }
-    pFontDict->SetAtName(FX_BSTRC("Type"), "Font");
-    pFontDict->SetAtName(FX_BSTRC("Subtype"), "Type1");
-    pFontDict->SetAtName(FX_BSTRC("BaseFont"), "Helvetica");
-    pFontDict->SetAtName(FX_BSTRC("Encoding"), "WinAnsiEncoding");
+    pFontDict->SetAtName("Type", "Font");
+    pFontDict->SetAtName("Subtype", "Type1");
+    pFontDict->SetAtName("BaseFont", "Helvetica");
+    pFontDict->SetAtName("Encoding", "WinAnsiEncoding");
     pDoc->AddIndirectObject(pFontDict);
     pDRFontDict->SetAtReference(sFontName.Mid(1), pDoc, pFontDict);
   }
diff --git a/core/src/fpdfdoc/doc_basic.cpp b/core/src/fpdfdoc/doc_basic.cpp
index 4da182814d..904ccf7c1f 100644
--- a/core/src/fpdfdoc/doc_basic.cpp
+++ b/core/src/fpdfdoc/doc_basic.cpp
@@ -63,8 +63,8 @@ CFX_ByteString CPDF_Dest::GetRemoteName() {
 }
 CPDF_NameTree::CPDF_NameTree(CPDF_Document* pDoc,
                              const CFX_ByteStringC& category) {
-  if (pDoc->GetRoot() && pDoc->GetRoot()->GetDict(FX_BSTRC("Names")))
-    m_pRoot = pDoc->GetRoot()->GetDict(FX_BSTRC("Names"))->GetDict(category);
+  if (pDoc->GetRoot() && pDoc->GetRoot()->GetDict("Names"))
+    m_pRoot = pDoc->GetRoot()->GetDict("Names")->GetDict(category);
   else
     m_pRoot = NULL;
 }
@@ -76,7 +76,7 @@ static CPDF_Object* SearchNameNode(CPDF_Dictionary* pNode,
   if (nLevel > nMaxRecursion) {
     return NULL;
   }
-  CPDF_Array* pLimits = pNode->GetArray(FX_BSTRC("Limits"));
+  CPDF_Array* pLimits = pNode->GetArray("Limits");
   if (pLimits != NULL) {
     CFX_ByteString csLeft = pLimits->GetString(0);
     CFX_ByteString csRight = pLimits->GetString(1);
@@ -89,7 +89,7 @@ static CPDF_Object* SearchNameNode(CPDF_Dictionary* pNode,
       return NULL;
     }
   }
-  CPDF_Array* pNames = pNode->GetArray(FX_BSTRC("Names"));
+  CPDF_Array* pNames = pNode->GetArray("Names");
   if (pNames) {
     FX_DWORD dwCount = pNames->GetCount() / 2;
     for (FX_DWORD i = 0; i < dwCount; i++) {
@@ -111,7 +111,7 @@ static CPDF_Object* SearchNameNode(CPDF_Dictionary* pNode,
     nIndex += dwCount;
     return NULL;
   }
-  CPDF_Array* pKids = pNode->GetArray(FX_BSTRC("Kids"));
+  CPDF_Array* pKids = pNode->GetArray("Kids");
   if (pKids == NULL) {
     return NULL;
   }
@@ -137,7 +137,7 @@ static CPDF_Object* SearchNameNode(CPDF_Dictionary* pNode,
   if (nLevel > nMaxRecursion) {
     return NULL;
   }
-  CPDF_Array* pNames = pNode->GetArray(FX_BSTRC("Names"));
+  CPDF_Array* pNames = pNode->GetArray("Names");
   if (pNames) {
     int nCount = pNames->GetCount() / 2;
     if (nIndex >= nCurIndex + nCount) {
@@ -150,7 +150,7 @@ static CPDF_Object* SearchNameNode(CPDF_Dictionary* pNode,
     csName = pNames->GetString((nIndex - nCurIndex) * 2);
     return pNames->GetElementValue((nIndex - nCurIndex) * 2 + 1);
   }
-  CPDF_Array* pKids = pNode->GetArray(FX_BSTRC("Kids"));
+  CPDF_Array* pKids = pNode->GetArray("Kids");
   if (pKids == NULL) {
     return NULL;
   }
@@ -171,11 +171,11 @@ static int CountNames(CPDF_Dictionary* pNode, int nLevel = 0) {
   if (nLevel > nMaxRecursion) {
     return 0;
   }
-  CPDF_Array* pNames = pNode->GetArray(FX_BSTRC("Names"));
+  CPDF_Array* pNames = pNode->GetArray("Names");
   if (pNames) {
     return pNames->GetCount() / 2;
   }
-  CPDF_Array* pKids = pNode->GetArray(FX_BSTRC("Kids"));
+  CPDF_Array* pKids = pNode->GetArray("Kids");
   if (pKids == NULL) {
     return 0;
   }
@@ -224,7 +224,7 @@ CPDF_Array* CPDF_NameTree::LookupNamedDest(CPDF_Document* pDoc,
                                            const CFX_ByteStringC& sName) {
   CPDF_Object* pValue = LookupValue(sName);
   if (!pValue) {
-    CPDF_Dictionary* pDests = pDoc->GetRoot()->GetDict(FX_BSTRC("Dests"));
+    CPDF_Dictionary* pDests = pDoc->GetRoot()->GetDict("Dests");
     if (!pDests)
       return nullptr;
     pValue = pDests->GetElementValue(sName);
@@ -234,7 +234,7 @@ CPDF_Array* CPDF_NameTree::LookupNamedDest(CPDF_Document* pDoc,
   if (CPDF_Array* pArray = pValue->AsArray())
     return pArray;
   if (CPDF_Dictionary* pDict = pValue->AsDictionary())
-    return pDict->GetArray(FX_BSTRC("D"));
+    return pDict->GetArray("D");
   return nullptr;
 }
 #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ || \
@@ -304,23 +304,20 @@ FX_BOOL CPDF_FileSpec::GetFileName(CFX_WideString& csFileName) const {
     return FALSE;
   }
   if (CPDF_Dictionary* pDict = m_pObj->AsDictionary()) {
-    csFileName = pDict->GetUnicodeText(FX_BSTRC("UF"));
+    csFileName = pDict->GetUnicodeText("UF");
     if (csFileName.IsEmpty()) {
-      csFileName = CFX_WideString::FromLocal(pDict->GetString(FX_BSTRC("F")));
+      csFileName = CFX_WideString::FromLocal(pDict->GetString("F"));
     }
-    if (pDict->GetString(FX_BSTRC("FS")) == FX_BSTRC("URL")) {
+    if (pDict->GetString("FS") == "URL") {
       return TRUE;
     }
     if (csFileName.IsEmpty()) {
-      if (pDict->KeyExist(FX_BSTRC("DOS"))) {
-        csFileName =
-            CFX_WideString::FromLocal(pDict->GetString(FX_BSTRC("DOS")));
-      } else if (pDict->KeyExist(FX_BSTRC("Mac"))) {
-        csFileName =
-            CFX_WideString::FromLocal(pDict->GetString(FX_BSTRC("Mac")));
-      } else if (pDict->KeyExist(FX_BSTRC("Unix"))) {
-        csFileName =
-            CFX_WideString::FromLocal(pDict->GetString(FX_BSTRC("Unix")));
+      if (pDict->KeyExist("DOS")) {
+        csFileName = CFX_WideString::FromLocal(pDict->GetString("DOS"));
+      } else if (pDict->KeyExist("Mac")) {
+        csFileName = CFX_WideString::FromLocal(pDict->GetString("Mac"));
+      } else if (pDict->KeyExist("Unix")) {
+        csFileName = CFX_WideString::FromLocal(pDict->GetString("Unix"));
       } else {
         return FALSE;
       }
@@ -334,12 +331,12 @@ FX_BOOL CPDF_FileSpec::GetFileName(CFX_WideString& csFileName) const {
 CPDF_FileSpec::CPDF_FileSpec() {
   m_pObj = CPDF_Dictionary::Create();
   if (CPDF_Dictionary* pDict = ToDictionary(m_pObj)) {
-    pDict->SetAtName(FX_BSTRC("Type"), FX_BSTRC("Filespec"));
+    pDict->SetAtName("Type", "Filespec");
   }
 }
 FX_BOOL CPDF_FileSpec::IsURL() const {
   if (CPDF_Dictionary* pDict = ToDictionary(m_pObj)) {
-    return pDict->GetString(FX_BSTRC("FS")) == FX_BSTRC("URL");
+    return pDict->GetString("FS") == "URL";
   }
   return FALSE;
 }
@@ -385,8 +382,8 @@ CPDF_Stream* CPDF_FileSpec::GetFileStream() const {
     return nullptr;
   if (CPDF_Stream* pStream = m_pObj->AsStream())
     return pStream;
-  if (CPDF_Dictionary* pEF = m_pObj->AsDictionary()->GetDict(FX_BSTRC("EF")))
-    return pEF->GetStream(FX_BSTRC("F"));
+  if (CPDF_Dictionary* pEF = m_pObj->AsDictionary()->GetDict("EF"))
+    return pEF->GetStream("F");
   return nullptr;
 }
 static void FPDFDOC_FILESPEC_SetFileName(CPDF_Object* pObj,
@@ -402,8 +399,8 @@ static void FPDFDOC_FILESPEC_SetFileName(CPDF_Object* pObj,
   if (pObj->IsString()) {
     pObj->SetString(CFX_ByteString::FromUnicode(wsStr));
   } else if (CPDF_Dictionary* pDict = pObj->AsDictionary()) {
-    pDict->SetAtString(FX_BSTRC("F"), CFX_ByteString::FromUnicode(wsStr));
-    pDict->SetAtString(FX_BSTRC("UF"), PDF_EncodeText(wsStr));
+    pDict->SetAtString("F", CFX_ByteString::FromUnicode(wsStr));
+    pDict->SetAtString("UF", PDF_EncodeText(wsStr));
   }
 }
 void CPDF_FileSpec::SetFileName(const CFX_WideStringC& wsFileName,
@@ -411,7 +408,7 @@ void CPDF_FileSpec::SetFileName(const CFX_WideStringC& wsFileName,
   ASSERT(m_pObj != NULL);
   if (bURL) {
     if (CPDF_Dictionary* pDict = m_pObj->AsDictionary()) {
-      pDict->SetAtName(FX_BSTRC("FS"), "URL");
+      pDict->SetAtName("FS", "URL");
     }
   }
   FPDFDOC_FILESPEC_SetFileName(m_pObj, wsFileName, bURL);
@@ -480,7 +477,7 @@ CFX_WideString CPDF_PageLabel::GetLabel(int nPage) const {
   if (pPDFRoot == NULL) {
     return wsLabel;
   }
-  CPDF_Dictionary* pLabels = pPDFRoot->GetDict(FX_BSTRC("PageLabels"));
+  CPDF_Dictionary* pLabels = pPDFRoot->GetDict("PageLabels");
   CPDF_NumberTree numberTree(pLabels);
   CPDF_Object* pValue = NULL;
   int n = nPage;
@@ -494,11 +491,11 @@ CFX_WideString CPDF_PageLabel::GetLabel(int nPage) const {
   if (pValue != NULL) {
     pValue = pValue->GetDirect();
     if (CPDF_Dictionary* pLabel = pValue->AsDictionary()) {
-      if (pLabel->KeyExist(FX_BSTRC("P"))) {
-        wsLabel += pLabel->GetUnicodeText(FX_BSTRC("P"));
+      if (pLabel->KeyExist("P")) {
+        wsLabel += pLabel->GetUnicodeText("P");
       }
-      CFX_ByteString bsNumberingStyle = pLabel->GetString(FX_BSTRC("S"), NULL);
-      int nLabelNum = nPage - n + pLabel->GetInteger(FX_BSTRC("St"), 1);
+      CFX_ByteString bsNumberingStyle = pLabel->GetString("S", NULL);
+      int nLabelNum = nPage - n + pLabel->GetInteger("St", 1);
       CFX_WideString wsNumPortion =
           _GetLabelNumPortion(nLabelNum, bsNumberingStyle);
       wsLabel += wsNumPortion;
diff --git a/core/src/fpdfdoc/doc_bookmark.cpp b/core/src/fpdfdoc/doc_bookmark.cpp
index 84b5a8b730..c59b1955a8 100644
--- a/core/src/fpdfdoc/doc_bookmark.cpp
+++ b/core/src/fpdfdoc/doc_bookmark.cpp
@@ -75,7 +75,7 @@ CPDF_Dest CPDF_Bookmark::GetDest(CPDF_Document* pDocument) const {
   if (!pDest)
     return CPDF_Dest();
   if (pDest->IsString() || pDest->IsName()) {
-    CPDF_NameTree name_tree(pDocument, FX_BSTRC("Dests"));
+    CPDF_NameTree name_tree(pDocument, "Dests");
     CFX_ByteStringC name = pDest->GetString();
     return CPDF_Dest(name_tree.LookupNamedDest(pDocument, name));
   }
diff --git a/core/src/fpdfdoc/doc_form.cpp b/core/src/fpdfdoc/doc_form.cpp
index 2397d6b74a..26857dd2af 100644
--- a/core/src/fpdfdoc/doc_form.cpp
+++ b/core/src/fpdfdoc/doc_form.cpp
@@ -904,7 +904,7 @@ void CPDF_InterForm::LoadField(CPDF_Dictionary* pFieldDict, int nLevel) {
   }
 }
 FX_BOOL CPDF_InterForm::HasXFAForm() const {
-  return m_pFormDict && m_pFormDict->GetArray(FX_BSTRC("XFA")) != NULL;
+  return m_pFormDict && m_pFormDict->GetArray("XFA") != NULL;
 }
 void CPDF_InterForm::FixPageFields(const CPDF_Page* pPage) {
   ASSERT(pPage != NULL);
@@ -912,20 +912,20 @@ void CPDF_InterForm::FixPageFields(const CPDF_Page* pPage) {
   if (pPageDict == NULL) {
     return;
   }
-  CPDF_Array* pAnnots = pPageDict->GetArray(FX_BSTRC("Annots"));
+  CPDF_Array* pAnnots = pPageDict->GetArray("Annots");
   if (pAnnots == NULL) {
     return;
   }
   int iAnnotCount = pAnnots->GetCount();
   for (int i = 0; i < iAnnotCount; i++) {
     CPDF_Dictionary* pAnnot = pAnnots->GetDict(i);
-    if (pAnnot != NULL && pAnnot->GetString(FX_BSTRC("Subtype")) == "Widget") {
+    if (pAnnot != NULL && pAnnot->GetString("Subtype") == "Widget") {
       LoadField(pAnnot);
     }
   }
 }
 CPDF_FormField* CPDF_InterForm::AddTerminalField(CPDF_Dictionary* pFieldDict) {
-  if (!pFieldDict->KeyExist(FX_BSTRC("T"))) {
+  if (!pFieldDict->KeyExist("T")) {
     return NULL;
   }
   CPDF_Dictionary* pDict = pFieldDict;
@@ -937,25 +937,24 @@ CPDF_FormField* CPDF_InterForm::AddTerminalField(CPDF_Dictionary* pFieldDict) {
   pField = m_pFieldTree->GetField(csWName);
   if (pField == NULL) {
     CPDF_Dictionary* pParent = pFieldDict;
-    if (!pFieldDict->KeyExist(FX_BSTRC("T")) &&
-        pFieldDict->GetString(FX_BSTRC("Subtype")) == FX_BSTRC("Widget")) {
-      pParent = pFieldDict->GetDict(FX_BSTRC("Parent"));
+    if (!pFieldDict->KeyExist("T") &&
+        pFieldDict->GetString("Subtype") == "Widget") {
+      pParent = pFieldDict->GetDict("Parent");
       if (!pParent) {
         pParent = pFieldDict;
       }
     }
-    if (pParent && pParent != pFieldDict &&
-        !pParent->KeyExist(FX_BSTRC("FT"))) {
-      if (pFieldDict->KeyExist(FX_BSTRC("FT"))) {
-        CPDF_Object* pFTValue = pFieldDict->GetElementValue(FX_BSTRC("FT"));
+    if (pParent && pParent != pFieldDict && !pParent->KeyExist("FT")) {
+      if (pFieldDict->KeyExist("FT")) {
+        CPDF_Object* pFTValue = pFieldDict->GetElementValue("FT");
         if (pFTValue) {
-          pParent->SetAt(FX_BSTRC("FT"), pFTValue->Clone());
+          pParent->SetAt("FT", pFTValue->Clone());
         }
       }
-      if (pFieldDict->KeyExist(FX_BSTRC("Ff"))) {
-        CPDF_Object* pFfValue = pFieldDict->GetElementValue(FX_BSTRC("Ff"));
+      if (pFieldDict->KeyExist("Ff")) {
+        CPDF_Object* pFfValue = pFieldDict->GetElementValue("Ff");
         if (pFfValue) {
-          pParent->SetAt(FX_BSTRC("Ff"), pFfValue->Clone());
+          pParent->SetAt("Ff", pFfValue->Clone());
         }
       }
     }
@@ -1058,9 +1057,8 @@ CFDF_Document* CPDF_InterForm::ExportToFDF(
   if (!pdf_path.IsEmpty()) {
     if (bSimpleFileSpec) {
       CFX_WideString wsFilePath = FILESPEC_EncodeFileName(pdf_path);
-      pMainDict->SetAtString(FX_BSTRC("F"),
-                             CFX_ByteString::FromUnicode(wsFilePath));
-      pMainDict->SetAtString(FX_BSTRC("UF"), PDF_EncodeText(wsFilePath));
+      pMainDict->SetAtString("F", CFX_ByteString::FromUnicode(wsFilePath));
+      pMainDict->SetAtString("UF", PDF_EncodeText(wsFilePath));
     } else {
       CPDF_FileSpec filespec;
       filespec.SetFileName(pdf_path);
@@ -1231,7 +1229,7 @@ FX_BOOL CPDF_InterForm::ImportFromFDF(const CFDF_Document* pFDF,
   if (pFields == NULL) {
     return FALSE;
   }
-  m_bsEncoding = pMainDict->GetString(FX_BSTRC("Encoding"));
+  m_bsEncoding = pMainDict->GetString("Encoding");
   if (bNotify && m_pFormNotify != NULL) {
     int iRet = m_pFormNotify->BeforeFormImportData(this);
     if (iRet < 0) {
diff --git a/core/src/fpdfdoc/doc_formcontrol.cpp b/core/src/fpdfdoc/doc_formcontrol.cpp
index 9bdf13bf85..0d2f9905d9 100644
--- a/core/src/fpdfdoc/doc_formcontrol.cpp
+++ b/core/src/fpdfdoc/doc_formcontrol.cpp
@@ -191,7 +191,7 @@ CPDF_FormControl::HighlightingMode CPDF_FormControl::GetHighlightingMode() {
 }
 
 CPDF_ApSettings CPDF_FormControl::GetMK() const {
-  return CPDF_ApSettings(m_pWidgetDict ? m_pWidgetDict->GetDict(FX_BSTRC("MK"))
+  return CPDF_ApSettings(m_pWidgetDict ? m_pWidgetDict->GetDict("MK")
                                        : nullptr);
 }
 
@@ -330,7 +330,7 @@ bool CPDF_ApSettings::HasMKEntry(const CFX_ByteStringC& csEntry) const {
 }
 
 int CPDF_ApSettings::GetRotation() const {
-  return m_pDict ? m_pDict->GetInteger(FX_BSTRC("R")) : 0;
+  return m_pDict ? m_pDict->GetInteger("R") : 0;
 }
 
 FX_ARGB CPDF_ApSettings::GetColor(int& iColorType,
@@ -421,10 +421,9 @@ CPDF_Stream* CPDF_ApSettings::GetIcon(const CFX_ByteStringC& csEntry) const {
 }
 
 CPDF_IconFit CPDF_ApSettings::GetIconFit() const {
-  return m_pDict ? m_pDict->GetDict(FX_BSTRC("IF")) : nullptr;
+  return m_pDict ? m_pDict->GetDict("IF") : nullptr;
 }
 
 int CPDF_ApSettings::GetTextPosition() const {
-  return m_pDict ? m_pDict->GetInteger(FX_BSTRC("TP"), TEXTPOS_CAPTION)
-                 : TEXTPOS_CAPTION;
+  return m_pDict ? m_pDict->GetInteger("TP", TEXTPOS_CAPTION) : TEXTPOS_CAPTION;
 }
diff --git a/core/src/fpdfdoc/doc_link.cpp b/core/src/fpdfdoc/doc_link.cpp
index 37e4fe358b..b7ddb7e61c 100644
--- a/core/src/fpdfdoc/doc_link.cpp
+++ b/core/src/fpdfdoc/doc_link.cpp
@@ -77,7 +77,7 @@ CPDF_Dest CPDF_Link::GetDest(CPDF_Document* pDoc) {
     return CPDF_Dest();
 
   if (pDest->IsString() || pDest->IsName()) {
-    CPDF_NameTree name_tree(pDoc, FX_BSTRC("Dests"));
+    CPDF_NameTree name_tree(pDoc, "Dests");
     CFX_ByteStringC name = pDest->GetString();
     return CPDF_Dest(name_tree.LookupNamedDest(pDoc, name));
   }
diff --git a/core/src/fpdfdoc/doc_metadata.cpp b/core/src/fpdfdoc/doc_metadata.cpp
index c9550a8c16..f25007351b 100644
--- a/core/src/fpdfdoc/doc_metadata.cpp
+++ b/core/src/fpdfdoc/doc_metadata.cpp
@@ -12,7 +12,7 @@ CPDF_Metadata::CPDF_Metadata(CPDF_Document* pDoc) {
   if (!pRoot)
     return;
 
-  CPDF_Stream* pStream = pRoot->GetStream(FX_BSTRC("Metadata"));
+  CPDF_Stream* pStream = pRoot->GetStream("Metadata");
   if (!pStream)
     return;
 
diff --git a/core/src/fpdfdoc/doc_ocg.cpp b/core/src/fpdfdoc/doc_ocg.cpp
index 7f9c6774df..4e0e1c5a31 100644
--- a/core/src/fpdfdoc/doc_ocg.cpp
+++ b/core/src/fpdfdoc/doc_ocg.cpp
@@ -21,12 +21,11 @@ static int32_t FPDFDOC_OCG_FindGroup(const CPDF_Object* pObject,
   }
   return pObject->GetDict() == pGroupDict ? 0 : -1;
 }
-static FX_BOOL FPDFDOC_OCG_HasIntent(
-    const CPDF_Dictionary* pDict,
-    const CFX_ByteStringC& csElement,
-    const CFX_ByteStringC& csDef = FX_BSTRC("")) {
+static FX_BOOL FPDFDOC_OCG_HasIntent(const CPDF_Dictionary* pDict,
+                                     const CFX_ByteStringC& csElement,
+                                     const CFX_ByteStringC& csDef = "") {
   FXSYS_assert(pDict != NULL);
-  CPDF_Object* pIntent = pDict->GetElementValue(FX_BSTRC("Intent"));
+  CPDF_Object* pIntent = pDict->GetElementValue("Intent");
   if (pIntent == NULL) {
     return csElement == csDef;
   }
@@ -35,32 +34,31 @@ static FX_BOOL FPDFDOC_OCG_HasIntent(
     FX_DWORD dwCount = pArray->GetCount();
     for (FX_DWORD i = 0; i < dwCount; i++) {
       bsIntent = pArray->GetString(i);
-      if (bsIntent == FX_BSTRC("All") || bsIntent == csElement)
+      if (bsIntent == "All" || bsIntent == csElement)
         return TRUE;
     }
     return FALSE;
   }
   bsIntent = pIntent->GetString();
-  return bsIntent == FX_BSTRC("All") || bsIntent == csElement;
+  return bsIntent == "All" || bsIntent == csElement;
 }
 static CPDF_Dictionary* FPDFDOC_OCG_GetConfig(CPDF_Document* pDoc,
                                               const CPDF_Dictionary* pOCGDict,
                                               const CFX_ByteStringC& bsState) {
   FXSYS_assert(pDoc && pOCGDict);
-  CPDF_Dictionary* pOCProperties =
-      pDoc->GetRoot()->GetDict(FX_BSTRC("OCProperties"));
+  CPDF_Dictionary* pOCProperties = pDoc->GetRoot()->GetDict("OCProperties");
   if (!pOCProperties) {
     return NULL;
   }
-  CPDF_Array* pOCGs = pOCProperties->GetArray(FX_BSTRC("OCGs"));
+  CPDF_Array* pOCGs = pOCProperties->GetArray("OCGs");
   if (!pOCGs) {
     return NULL;
   }
   if (FPDFDOC_OCG_FindGroup(pOCGs, pOCGDict) < 0) {
     return NULL;
   }
-  CPDF_Dictionary* pConfig = pOCProperties->GetDict(FX_BSTRC("D"));
-  CPDF_Array* pConfigs = pOCProperties->GetArray(FX_BSTRC("Configs"));
+  CPDF_Dictionary* pConfig = pOCProperties->GetDict("D");
+  CPDF_Array* pConfigs = pOCProperties->GetArray("Configs");
   if (pConfigs) {
     CPDF_Dictionary* pFind;
     int32_t iCount = pConfigs->GetCount();
@@ -69,7 +67,7 @@ static CPDF_Dictionary* FPDFDOC_OCG_GetConfig(CPDF_Document* pDoc,
       if (!pFind) {
         continue;
       }
-      if (!FPDFDOC_OCG_HasIntent(pFind, FX_BSTRC("View"), FX_BSTRC("View"))) {
+      if (!FPDFDOC_OCG_HasIntent(pFind, "View", "View")) {
         continue;
       }
       pConfig = pFind;
@@ -80,13 +78,13 @@ static CPDF_Dictionary* FPDFDOC_OCG_GetConfig(CPDF_Document* pDoc,
 }
 static CFX_ByteString FPDFDOC_OCG_GetUsageTypeString(
     CPDF_OCContext::UsageType eType) {
-  CFX_ByteString csState = FX_BSTRC("View");
+  CFX_ByteString csState = "View";
   if (eType == CPDF_OCContext::Design) {
-    csState = FX_BSTRC("Design");
+    csState = "Design";
   } else if (eType == CPDF_OCContext::Print) {
-    csState = FX_BSTRC("Print");
+    csState = "Print";
   } else if (eType == CPDF_OCContext::Export) {
-    csState = FX_BSTRC("Export");
+    csState = "Export";
   }
   return csState;
 }
@@ -107,33 +105,32 @@ FX_BOOL CPDF_OCContext::LoadOCGStateFromConfig(const CFX_ByteStringC& csConfig,
     return TRUE;
   }
   bValidConfig = TRUE;
-  FX_BOOL bState = pConfig->GetString(FX_BSTRC("BaseState"), FX_BSTRC("ON")) !=
-                   FX_BSTRC("OFF");
-  CPDF_Array* pArray = pConfig->GetArray(FX_BSTRC("ON"));
+  FX_BOOL bState = pConfig->GetString("BaseState", "ON") != "OFF";
+  CPDF_Array* pArray = pConfig->GetArray("ON");
   if (pArray) {
     if (FPDFDOC_OCG_FindGroup(pArray, pOCGDict) >= 0) {
       bState = TRUE;
     }
   }
-  pArray = pConfig->GetArray(FX_BSTRC("OFF"));
+  pArray = pConfig->GetArray("OFF");
   if (pArray) {
     if (FPDFDOC_OCG_FindGroup(pArray, pOCGDict) >= 0) {
       bState = FALSE;
     }
   }
-  pArray = pConfig->GetArray(FX_BSTRC("AS"));
+  pArray = pConfig->GetArray("AS");
   if (pArray) {
-    CFX_ByteString csFind = csConfig + FX_BSTRC("State");
+    CFX_ByteString csFind = csConfig + "State";
     int32_t iCount = pArray->GetCount();
     for (int32_t i = 0; i < iCount; i++) {
       CPDF_Dictionary* pUsage = pArray->GetDict(i);
       if (!pUsage) {
         continue;
       }
-      if (pUsage->GetString(FX_BSTRC("Event"), FX_BSTRC("View")) != csConfig) {
+      if (pUsage->GetString("Event", "View") != csConfig) {
         continue;
       }
-      CPDF_Array* pOCGs = pUsage->GetArray(FX_BSTRC("OCGs"));
+      CPDF_Array* pOCGs = pUsage->GetArray("OCGs");
       if (!pOCGs) {
         continue;
       }
@@ -144,29 +141,29 @@ FX_BOOL CPDF_OCContext::LoadOCGStateFromConfig(const CFX_ByteStringC& csConfig,
       if (!pState) {
         continue;
       }
-      bState = pState->GetString(csFind) != FX_BSTRC("OFF");
+      bState = pState->GetString(csFind) != "OFF";
     }
   }
   return bState;
 }
 FX_BOOL CPDF_OCContext::LoadOCGState(const CPDF_Dictionary* pOCGDict) const {
-  if (!FPDFDOC_OCG_HasIntent(pOCGDict, FX_BSTRC("View"), FX_BSTRC("View"))) {
+  if (!FPDFDOC_OCG_HasIntent(pOCGDict, "View", "View")) {
     return TRUE;
   }
   CFX_ByteString csState = FPDFDOC_OCG_GetUsageTypeString(m_eUsageType);
-  CPDF_Dictionary* pUsage = pOCGDict->GetDict(FX_BSTRC("Usage"));
+  CPDF_Dictionary* pUsage = pOCGDict->GetDict("Usage");
   if (pUsage) {
     CPDF_Dictionary* pState = pUsage->GetDict(csState);
     if (pState) {
-      CFX_ByteString csFind = csState + FX_BSTRC("State");
+      CFX_ByteString csFind = csState + "State";
       if (pState->KeyExist(csFind)) {
-        return pState->GetString(csFind) != FX_BSTRC("OFF");
+        return pState->GetString(csFind) != "OFF";
       }
     }
-    if (csState != FX_BSTRC("View")) {
-      pState = pUsage->GetDict(FX_BSTRC("View"));
-      if (pState && pState->KeyExist(FX_BSTRC("ViewState"))) {
-        return pState->GetString(FX_BSTRC("ViewState")) != FX_BSTRC("OFF");
+    if (csState != "View") {
+      pState = pUsage->GetDict("View");
+      if (pState && pState->KeyExist("ViewState")) {
+        return pState->GetString("ViewState") != "OFF";
       }
     }
   }
@@ -199,7 +196,7 @@ FX_BOOL CPDF_OCContext::GetOCGVE(CPDF_Array* pExpression,
   int32_t iCount = pExpression->GetCount();
   CPDF_Object* pOCGObj;
   CFX_ByteString csOperator = pExpression->GetString(0);
-  if (csOperator == FX_BSTRC("Not")) {
+  if (csOperator == "Not") {
     pOCGObj = pExpression->GetElementValue(1);
     if (!pOCGObj)
       return FALSE;
@@ -209,7 +206,7 @@ FX_BOOL CPDF_OCContext::GetOCGVE(CPDF_Array* pExpression,
       return !GetOCGVE(pArray, bFromConfig, nLevel + 1);
     return FALSE;
   }
-  if (csOperator == FX_BSTRC("Or") || csOperator == FX_BSTRC("And")) {
+  if (csOperator == "Or" || csOperator == "And") {
     FX_BOOL bValue = FALSE;
     for (int32_t i = 1; i < iCount; i++) {
       pOCGObj = pExpression->GetElementValue(1);
@@ -225,7 +222,7 @@ FX_BOOL CPDF_OCContext::GetOCGVE(CPDF_Array* pExpression,
       if (i == 1) {
         bValue = bItem;
       } else {
-        if (csOperator == FX_BSTRC("Or")) {
+        if (csOperator == "Or") {
           bValue = bValue || bItem;
         } else {
           bValue = bValue && bItem;
@@ -239,12 +236,12 @@ FX_BOOL CPDF_OCContext::GetOCGVE(CPDF_Array* pExpression,
 FX_BOOL CPDF_OCContext::LoadOCMDState(const CPDF_Dictionary* pOCMDDict,
                                       FX_BOOL bFromConfig) {
   FXSYS_assert(pOCMDDict != NULL);
-  CPDF_Array* pVE = pOCMDDict->GetArray(FX_BSTRC("VE"));
+  CPDF_Array* pVE = pOCMDDict->GetArray("VE");
   if (pVE != NULL) {
     return GetOCGVE(pVE, bFromConfig);
   }
-  CFX_ByteString csP = pOCMDDict->GetString(FX_BSTRC("P"), FX_BSTRC("AnyOn"));
-  CPDF_Object* pOCGObj = pOCMDDict->GetElementValue(FX_BSTRC("OCGs"));
+  CFX_ByteString csP = pOCMDDict->GetString("P", "AnyOn");
+  CPDF_Object* pOCGObj = pOCMDDict->GetElementValue("OCGs");
   if (!pOCGObj)
     return TRUE;
   if (const CPDF_Dictionary* pDict = pOCGObj->AsDictionary())
@@ -255,7 +252,7 @@ FX_BOOL CPDF_OCContext::LoadOCMDState(const CPDF_Dictionary* pOCMDDict,
     return TRUE;
 
   FX_BOOL bState = FALSE;
-  if (csP == FX_BSTRC("AllOn") || csP == FX_BSTRC("AllOff")) {
+  if (csP == "AllOn" || csP == "AllOff") {
     bState = TRUE;
   }
   int32_t iCount = pArray->GetCount();
@@ -265,11 +262,9 @@ FX_BOOL CPDF_OCContext::LoadOCMDState(const CPDF_Dictionary* pOCMDDict,
     if (pItemDict)
       bItem = bFromConfig ? LoadOCGState(pItemDict) : GetOCGVisible(pItemDict);
 
-    if ((csP == FX_BSTRC("AnyOn") && bItem) ||
-        (csP == FX_BSTRC("AnyOff") && !bItem))
+    if ((csP == "AnyOn" && bItem) || (csP == "AnyOff" && !bItem))
       return TRUE;
-    if ((csP == FX_BSTRC("AllOn") && !bItem) ||
-        (csP == FX_BSTRC("AllOff") && bItem))
+    if ((csP == "AllOn" && !bItem) || (csP == "AllOff" && bItem))
       return FALSE;
   }
   return bState;
@@ -278,9 +273,8 @@ FX_BOOL CPDF_OCContext::CheckOCGVisible(const CPDF_Dictionary* pOCGDict) {
   if (!pOCGDict) {
     return TRUE;
   }
-  CFX_ByteString csType =
-      pOCGDict->GetString(FX_BSTRC("Type"), FX_BSTRC("OCG"));
-  if (csType == FX_BSTRC("OCG")) {
+  CFX_ByteString csType = pOCGDict->GetString("Type", "OCG");
+  if (csType == "OCG") {
     return GetOCGVisible(pOCGDict);
   }
   return LoadOCMDState(pOCGDict, FALSE);
diff --git a/core/src/fpdfdoc/doc_tagged.cpp b/core/src/fpdfdoc/doc_tagged.cpp
index 2a3cfb9707..7869834dd9 100644
--- a/core/src/fpdfdoc/doc_tagged.cpp
+++ b/core/src/fpdfdoc/doc_tagged.cpp
@@ -12,8 +12,8 @@
 const int nMaxRecursion = 32;
 static FX_BOOL IsTagged(const CPDF_Document* pDoc) {
   CPDF_Dictionary* pCatalog = pDoc->GetRoot();
-  CPDF_Dictionary* pMarkInfo = pCatalog->GetDict(FX_BSTRC("MarkInfo"));
-  return pMarkInfo != NULL && pMarkInfo->GetInteger(FX_BSTRC("Marked"));
+  CPDF_Dictionary* pMarkInfo = pCatalog->GetDict("MarkInfo");
+  return pMarkInfo != NULL && pMarkInfo->GetInteger("Marked");
 }
 CPDF_StructTree* CPDF_StructTree::LoadPage(const CPDF_Document* pDoc,
                                            const CPDF_Dictionary* pPageDict) {
@@ -34,11 +34,11 @@ CPDF_StructTree* CPDF_StructTree::LoadDoc(const CPDF_Document* pDoc) {
 }
 CPDF_StructTreeImpl::CPDF_StructTreeImpl(const CPDF_Document* pDoc) {
   CPDF_Dictionary* pCatalog = pDoc->GetRoot();
-  m_pTreeRoot = pCatalog->GetDict(FX_BSTRC("StructTreeRoot"));
+  m_pTreeRoot = pCatalog->GetDict("StructTreeRoot");
   if (m_pTreeRoot == NULL) {
     return;
   }
-  m_pRoleMap = m_pTreeRoot->GetDict(FX_BSTRC("RoleMap"));
+  m_pRoleMap = m_pTreeRoot->GetDict("RoleMap");
 }
 CPDF_StructTreeImpl::~CPDF_StructTreeImpl() {
   for (int i = 0; i < m_Kids.GetSize(); i++)
@@ -51,7 +51,7 @@ void CPDF_StructTreeImpl::LoadDocTree() {
   if (!m_pTreeRoot)
     return;
 
-  CPDF_Object* pKids = m_pTreeRoot->GetElementValue(FX_BSTRC("K"));
+  CPDF_Object* pKids = m_pTreeRoot->GetElementValue("K");
   if (!pKids)
     return;
   if (CPDF_Dictionary* pDict = pKids->AsDictionary()) {
@@ -76,7 +76,7 @@ void CPDF_StructTreeImpl::LoadPageTree(const CPDF_Dictionary* pPageDict) {
   if (!m_pTreeRoot)
     return;
 
-  CPDF_Object* pKids = m_pTreeRoot->GetElementValue(FX_BSTRC("K"));
+  CPDF_Object* pKids = m_pTreeRoot->GetElementValue("K");
   if (!pKids)
     return;
 
@@ -94,12 +94,12 @@ void CPDF_StructTreeImpl::LoadPageTree(const CPDF_Dictionary* pPageDict) {
     m_Kids[i] = NULL;
   }
   CFX_MapPtrToPtr element_map;
-  CPDF_Dictionary* pParentTree = m_pTreeRoot->GetDict(FX_BSTRC("ParentTree"));
+  CPDF_Dictionary* pParentTree = m_pTreeRoot->GetDict("ParentTree");
   if (pParentTree == NULL) {
     return;
   }
   CPDF_NumberTree parent_tree(pParentTree);
-  int parents_id = pPageDict->GetInteger(FX_BSTRC("StructParents"), -1);
+  int parents_id = pPageDict->GetInteger("StructParents", -1);
   if (parents_id >= 0) {
     CPDF_Array* pParentArray = ToArray(parent_tree.LookupValue(parents_id));
     if (!pParentArray)
@@ -126,9 +126,8 @@ CPDF_StructElementImpl* CPDF_StructTreeImpl::AddPageNode(CPDF_Dictionary* pDict,
   }
   pElement = new CPDF_StructElementImpl(this, NULL, pDict);
   map.SetAt(pDict, pElement);
-  CPDF_Dictionary* pParent = pDict->GetDict(FX_BSTRC("P"));
-  if (pParent == NULL ||
-      pParent->GetString(FX_BSTRC("Type")) == FX_BSTRC("StructTreeRoot")) {
+  CPDF_Dictionary* pParent = pDict->GetDict("P");
+  if (pParent == NULL || pParent->GetString("Type") == "StructTreeRoot") {
     if (!AddTopLevelNode(pDict, pElement)) {
       pElement->Release();
       map.RemoveKey(pDict);
@@ -156,7 +155,7 @@ CPDF_StructElementImpl* CPDF_StructTreeImpl::AddPageNode(CPDF_Dictionary* pDict,
 }
 FX_BOOL CPDF_StructTreeImpl::AddTopLevelNode(CPDF_Dictionary* pDict,
                                              CPDF_StructElementImpl* pElement) {
-  CPDF_Object* pObj = m_pTreeRoot->GetElementValue(FX_BSTRC("K"));
+  CPDF_Object* pObj = m_pTreeRoot->GetElementValue("K");
   if (!pObj) {
     return FALSE;
   }
@@ -196,7 +195,7 @@ CPDF_StructElementImpl::CPDF_StructElementImpl(CPDF_StructTreeImpl* pTree,
     : m_RefCount(0) {
   m_pTree = pTree;
   m_pDict = pDict;
-  m_Type = pDict->GetString(FX_BSTRC("S"));
+  m_Type = pDict->GetString("S");
   if (pTree->m_pRoleMap) {
     CFX_ByteString mapped = pTree->m_pRoleMap->GetString(m_Type);
     if (!mapped.IsEmpty()) {
@@ -224,12 +223,12 @@ void CPDF_StructElementImpl::Release() {
   }
 }
 void CPDF_StructElementImpl::LoadKids(CPDF_Dictionary* pDict) {
-  CPDF_Object* pObj = pDict->GetElement(FX_BSTRC("Pg"));
+  CPDF_Object* pObj = pDict->GetElement("Pg");
   FX_DWORD PageObjNum = 0;
   if (CPDF_Reference* pRef = ToReference(pObj))
     PageObjNum = pRef->GetRefObjNum();
 
-  CPDF_Object* pKids = pDict->GetElementValue(FX_BSTRC("K"));
+  CPDF_Object* pKids = pDict->GetElementValue("K");
   if (!pKids)
     return;
 
@@ -265,30 +264,28 @@ void CPDF_StructElementImpl::LoadKid(FX_DWORD PageObjNum,
   if (!pKidDict)
     return;
 
-  if (CPDF_Reference* pRef = ToReference(pKidDict->GetElement(FX_BSTRC("Pg"))))
+  if (CPDF_Reference* pRef = ToReference(pKidDict->GetElement("Pg")))
     PageObjNum = pRef->GetRefObjNum();
 
-  CFX_ByteString type = pKidDict->GetString(FX_BSTRC("Type"));
-  if (type == FX_BSTRC("MCR")) {
+  CFX_ByteString type = pKidDict->GetString("Type");
+  if (type == "MCR") {
     if (m_pTree->m_pPage && m_pTree->m_pPage->GetObjNum() != PageObjNum) {
       return;
     }
     pKid->m_Type = CPDF_StructKid::StreamContent;
-    if (CPDF_Reference* pRef =
-            ToReference(pKidDict->GetElement(FX_BSTRC("Stm")))) {
+    if (CPDF_Reference* pRef = ToReference(pKidDict->GetElement("Stm"))) {
       pKid->m_StreamContent.m_RefObjNum = pRef->GetRefObjNum();
     } else {
       pKid->m_StreamContent.m_RefObjNum = 0;
     }
     pKid->m_StreamContent.m_PageObjNum = PageObjNum;
-    pKid->m_StreamContent.m_ContentId = pKidDict->GetInteger(FX_BSTRC("MCID"));
-  } else if (type == FX_BSTRC("OBJR")) {
+    pKid->m_StreamContent.m_ContentId = pKidDict->GetInteger("MCID");
+  } else if (type == "OBJR") {
     if (m_pTree->m_pPage && m_pTree->m_pPage->GetObjNum() != PageObjNum) {
       return;
     }
     pKid->m_Type = CPDF_StructKid::Object;
-    if (CPDF_Reference* pObj =
-            ToReference(pKidDict->GetElement(FX_BSTRC("Obj")))) {
+    if (CPDF_Reference* pObj = ToReference(pKidDict->GetElement("Obj"))) {
       pKid->m_Object.m_RefObjNum = pObj->GetRefObjNum();
     } else {
       pKid->m_Object.m_RefObjNum = 0;
@@ -326,7 +323,7 @@ static CPDF_Dictionary* FindAttrDict(CPDF_Object* pAttrs,
         return pDict;
     }
   }
-  if (pDict && pDict->GetString(FX_BSTRC("O")) == owner)
+  if (pDict && pDict->GetString("O") == owner)
     return pDict;
   return nullptr;
 }
@@ -347,7 +344,7 @@ CPDF_Object* CPDF_StructElementImpl::GetAttr(const CFX_ByteStringC& owner,
     }
     return m_pParent->GetAttr(owner, name, TRUE, fLevel + 1);
   }
-  CPDF_Object* pA = m_pDict->GetElementValue(FX_BSTRC("A"));
+  CPDF_Object* pA = m_pDict->GetElementValue("A");
   if (pA) {
     CPDF_Dictionary* pAttrDict = FindAttrDict(pA, owner);
     if (pAttrDict) {
@@ -357,12 +354,11 @@ CPDF_Object* CPDF_StructElementImpl::GetAttr(const CFX_ByteStringC& owner,
       }
     }
   }
-  CPDF_Object* pC = m_pDict->GetElementValue(FX_BSTRC("C"));
+  CPDF_Object* pC = m_pDict->GetElementValue("C");
   if (!pC)
     return nullptr;
 
-  CPDF_Dictionary* pClassMap =
-      m_pTree->m_pTreeRoot->GetDict(FX_BSTRC("ClassMap"));
+  CPDF_Dictionary* pClassMap = m_pTree->m_pTreeRoot->GetDict("ClassMap");
   if (!pClassMap)
     return nullptr;
 
@@ -370,14 +366,14 @@ CPDF_Object* CPDF_StructElementImpl::GetAttr(const CFX_ByteStringC& owner,
     for (FX_DWORD i = 0; i < pArray->GetCount(); i++) {
       CFX_ByteString class_name = pArray->GetString(i);
       CPDF_Dictionary* pClassDict = pClassMap->GetDict(class_name);
-      if (pClassDict && pClassDict->GetString(FX_BSTRC("O")) == owner)
+      if (pClassDict && pClassDict->GetString("O") == owner)
         return pClassDict->GetElementValue(name);
     }
     return nullptr;
   }
   CFX_ByteString class_name = pC->GetString();
   CPDF_Dictionary* pClassDict = pClassMap->GetDict(class_name);
-  if (pClassDict && pClassDict->GetString(FX_BSTRC("O")) == owner)
+  if (pClassDict && pClassDict->GetString("O") == owner)
     return pClassDict->GetElementValue(name);
   return nullptr;
 }
diff --git a/core/src/fpdfdoc/doc_viewerPreferences.cpp b/core/src/fpdfdoc/doc_viewerPreferences.cpp
index a6975cc958..05f50c03d0 100644
--- a/core/src/fpdfdoc/doc_viewerPreferences.cpp
+++ b/core/src/fpdfdoc/doc_viewerPreferences.cpp
@@ -11,43 +11,43 @@ CPDF_ViewerPreferences::CPDF_ViewerPreferences(CPDF_Document* pDoc)
 CPDF_ViewerPreferences::~CPDF_ViewerPreferences() {}
 FX_BOOL CPDF_ViewerPreferences::IsDirectionR2L() const {
   CPDF_Dictionary* pDict = m_pDoc->GetRoot();
-  pDict = pDict->GetDict(FX_BSTRC("ViewerPreferences"));
+  pDict = pDict->GetDict("ViewerPreferences");
   if (!pDict) {
     return FALSE;
   }
-  return FX_BSTRC("R2L") == pDict->GetString(FX_BSTRC("Direction"));
+  return "R2L" == pDict->GetString("Direction");
 }
 FX_BOOL CPDF_ViewerPreferences::PrintScaling() const {
   CPDF_Dictionary* pDict = m_pDoc->GetRoot();
-  pDict = pDict->GetDict(FX_BSTRC("ViewerPreferences"));
+  pDict = pDict->GetDict("ViewerPreferences");
   if (!pDict) {
     return TRUE;
   }
-  return FX_BSTRC("None") != pDict->GetString(FX_BSTRC("PrintScaling"));
+  return "None" != pDict->GetString("PrintScaling");
 }
 int32_t CPDF_ViewerPreferences::NumCopies() const {
   CPDF_Dictionary* pDict = m_pDoc->GetRoot();
-  pDict = pDict->GetDict(FX_BSTRC("ViewerPreferences"));
+  pDict = pDict->GetDict("ViewerPreferences");
   if (!pDict) {
     return 1;
   }
-  return pDict->GetInteger(FX_BSTRC("NumCopies"));
+  return pDict->GetInteger("NumCopies");
 }
 CPDF_Array* CPDF_ViewerPreferences::PrintPageRange() const {
   CPDF_Dictionary* pDict = m_pDoc->GetRoot();
   CPDF_Array* pRange = NULL;
-  pDict = pDict->GetDict(FX_BSTRC("ViewerPreferences"));
+  pDict = pDict->GetDict("ViewerPreferences");
   if (!pDict) {
     return pRange;
   }
-  pRange = pDict->GetArray(FX_BSTRC("PrintPageRange"));
+  pRange = pDict->GetArray("PrintPageRange");
   return pRange;
 }
 CFX_ByteString CPDF_ViewerPreferences::Duplex() const {
   CPDF_Dictionary* pDict = m_pDoc->GetRoot();
-  pDict = pDict->GetDict(FX_BSTRC("ViewerPreferences"));
+  pDict = pDict->GetDict("ViewerPreferences");
   if (!pDict) {
-    return FX_BSTRC("None");
+    return "None";
   }
-  return pDict->GetString(FX_BSTRC("Duplex"));
+  return pDict->GetString("Duplex");
 }