Rename GetElementValue() to GetDirectObject{By,At}().

Every time I read this code, I have to make the mental substituion
that "Element value" means "de-ref indirect object", so it might
as well just say so.

BUG=

Review URL: https://codereview.chromium.org/1841173002

28 files changed, 173 insertions, 172 deletions

diff --git a/core/fpdfapi/fpdf_edit/cpdf_pagecontentgenerator.cpp b/core/fpdfapi/fpdf_edit/cpdf_pagecontentgenerator.cpp
index 5f53afd210..6c5339128b 100644
--- a/core/fpdfapi/fpdf_edit/cpdf_pagecontentgenerator.cpp
+++ b/core/fpdfapi/fpdf_edit/cpdf_pagecontentgenerator.cpp
@@ -47,7 +47,7 @@ void CPDF_PageContentGenerator::GenerateContent() {
     ProcessImage(buf, pPageObj->AsImage());
   }
   CPDF_Object* pContent =
-      pPageDict ? pPageDict->GetElementValue("Contents") : NULL;
+      pPageDict ? pPageDict->GetDirectObjectBy("Contents") : NULL;
   if (pContent) {
     pPageDict->RemoveAt("Contents");
   }
@@ -122,7 +122,7 @@ void CPDF_PageContentGenerator::ProcessForm(CFX_ByteTextBuf& buf,
 }
 void CPDF_PageContentGenerator::TransformContent(CFX_Matrix& matrix) {
   CPDF_Dictionary* pDict = m_pPage->m_pFormDict;
-  CPDF_Object* pContent = pDict ? pDict->GetElementValue("Contents") : NULL;
+  CPDF_Object* pContent = pDict ? pDict->GetDirectObjectBy("Contents") : NULL;
   if (!pContent)
     return;
 
@@ -133,7 +133,7 @@ void CPDF_PageContentGenerator::TransformContent(CFX_Matrix& matrix) {
     int size = 0;
     int i = 0;
     for (i = 0; i < iCount; ++i) {
-      pContent = pArray->GetElement(i);
+      pContent = pArray->GetObjectAt(i);
       CPDF_Stream* pStream = ToStream(pContent);
       if (!pStream)
         continue;
diff --git a/core/fpdfapi/fpdf_edit/fpdf_edit_create.cpp b/core/fpdfapi/fpdf_edit/fpdf_edit_create.cpp
index 7dc90601c4..0f087d980a 100644
--- a/core/fpdfapi/fpdf_edit/fpdf_edit_create.cpp
+++ b/core/fpdfapi/fpdf_edit/fpdf_edit_create.cpp
@@ -96,7 +96,7 @@ int32_t PDF_CreatorAppendObject(const CPDF_Object* pObj,
       offset += 1;
       const CPDF_Array* p = pObj->AsArray();
       for (uint32_t i = 0; i < p->GetCount(); i++) {
-        CPDF_Object* pElement = p->GetElement(i);
+        CPDF_Object* pElement = p->GetObjectAt(i);
         if (pElement->GetObjNum()) {
           if (pFile->AppendString(" ") < 0) {
             return -1;
@@ -1199,7 +1199,7 @@ int32_t CPDF_Creator::WriteDirectObj(uint32_t objnum,
       m_Offset += 1;
       const CPDF_Array* p = pObj->AsArray();
       for (uint32_t i = 0; i < p->GetCount(); i++) {
-        CPDF_Object* pElement = p->GetElement(i);
+        CPDF_Object* pElement = p->GetObjectAt(i);
         if (pElement->GetObjNum()) {
           if (m_File.AppendString(" ") < 0) {
             return -1;
@@ -1493,7 +1493,7 @@ int32_t CPDF_Creator::WriteDoc_Stage1(IFX_Pause* pPause) {
       m_dwFlags &= ~FPDFCREATE_INCREMENTAL;
     }
     CPDF_Dictionary* pDict = m_pDocument->GetRoot();
-    m_pMetadata = pDict ? pDict->GetElementValue("Metadata") : NULL;
+    m_pMetadata = pDict ? pDict->GetDirectObjectBy("Metadata") : NULL;
     if (m_dwFlags & FPDFCREATE_OBJECTSTREAM) {
       m_pXRefStream = new CPDF_XRefStream;
       m_pXRefStream->Start();
@@ -1979,7 +1979,7 @@ void CPDF_Creator::InitID(FX_BOOL bDefault) {
   FX_BOOL bNewId = !m_pIDArray;
   if (!m_pIDArray) {
     m_pIDArray = new CPDF_Array;
-    CPDF_Object* pID1 = pOldIDArray ? pOldIDArray->GetElement(0) : NULL;
+    CPDF_Object* pID1 = pOldIDArray ? pOldIDArray->GetObjectAt(0) : NULL;
     if (pID1) {
       m_pIDArray->Add(pID1->Clone());
     } else {
@@ -1993,7 +1993,7 @@ void CPDF_Creator::InitID(FX_BOOL bDefault) {
     return;
   }
   if (pOldIDArray) {
-    CPDF_Object* pID2 = pOldIDArray->GetElement(1);
+    CPDF_Object* pID2 = pOldIDArray->GetObjectAt(1);
     if ((m_dwFlags & FPDFCREATE_INCREMENTAL) && m_pEncryptDict && pID2) {
       m_pIDArray->Add(pID2->Clone());
       return;
@@ -2004,7 +2004,7 @@ void CPDF_Creator::InitID(FX_BOOL bDefault) {
     m_pIDArray->Add(new CPDF_String(bsBuffer, TRUE), m_pDocument);
     return;
   }
-  m_pIDArray->Add(m_pIDArray->GetElement(0)->Clone());
+  m_pIDArray->Add(m_pIDArray->GetObjectAt(0)->Clone());
   if (m_pEncryptDict && !pOldIDArray && m_pParser && bNewId) {
     if (m_pEncryptDict->GetStringBy("Filter") == "Standard") {
       CPDF_StandardSecurityHandler handler;
diff --git a/core/fpdfapi/fpdf_font/cpdf_cidfont.cpp b/core/fpdfapi/fpdf_font/cpdf_cidfont.cpp
index 9dd045ede9..de119b75d1 100644
--- a/core/fpdfapi/fpdf_font/cpdf_cidfont.cpp
+++ b/core/fpdfapi/fpdf_font/cpdf_cidfont.cpp
@@ -373,7 +373,7 @@ FX_BOOL CPDF_CIDFont::Load() {
   if (pFontDesc) {
     LoadFontDescriptor(pFontDesc);
   }
-  CPDF_Object* pEncoding = m_pFontDict->GetElementValue("Encoding");
+  CPDF_Object* pEncoding = m_pFontDict->GetDirectObjectBy("Encoding");
   if (!pEncoding) {
     return FALSE;
   }
@@ -431,7 +431,7 @@ FX_BOOL CPDF_CIDFont::Load() {
   }
   if (1) {
     if (m_pFontFile || (GetSubstFont()->m_SubstFlags & FXFONT_SUBST_EXACT)) {
-      CPDF_Object* pmap = pCIDFontDict->GetElementValue("CIDToGIDMap");
+      CPDF_Object* pmap = pCIDFontDict->GetDirectObjectBy("CIDToGIDMap");
       if (pmap) {
         if (CPDF_Stream* pStream = pmap->AsStream()) {
           m_pCIDToGIDMap = new CPDF_StreamAcc;
@@ -820,7 +820,7 @@ void CPDF_CIDFont::LoadMetricsArray(CPDF_Array* pArray,
   int last_code = 0;
   uint32_t count = pArray->GetCount();
   for (uint32_t i = 0; i < count; i++) {
-    CPDF_Object* pObj = pArray->GetElementValue(i);
+    CPDF_Object* pObj = pArray->GetDirectObjectAt(i);
     if (!pObj)
       continue;
 
diff --git a/core/fpdfapi/fpdf_font/cpdf_font.cpp b/core/fpdfapi/fpdf_font/cpdf_font.cpp
index c52ce8ff93..fd6a9c9814 100644
--- a/core/fpdfapi/fpdf_font/cpdf_font.cpp
+++ b/core/fpdfapi/fpdf_font/cpdf_font.cpp
@@ -452,7 +452,7 @@ void CPDF_Font::LoadPDFEncoding(CPDF_Object* pEncoding,
   pCharNames = new CFX_ByteString[256];
   uint32_t cur_code = 0;
   for (uint32_t i = 0; i < pDiffs->GetCount(); i++) {
-    CPDF_Object* pElement = pDiffs->GetElementValue(i);
+    CPDF_Object* pElement = pDiffs->GetDirectObjectAt(i);
     if (!pElement)
       continue;
 
diff --git a/core/fpdfapi/fpdf_font/cpdf_simplefont.cpp b/core/fpdfapi/fpdf_font/cpdf_simplefont.cpp
index baac366e2a..53bbd93d6c 100644
--- a/core/fpdfapi/fpdf_font/cpdf_simplefont.cpp
+++ b/core/fpdfapi/fpdf_font/cpdf_simplefont.cpp
@@ -146,7 +146,7 @@ FX_BOOL CPDF_SimpleFont::LoadCommon() {
   if (!(m_Flags & PDFFONT_SYMBOLIC)) {
     m_BaseEncoding = PDFFONT_ENCODING_STANDARD;
   }
-  CPDF_Object* pEncoding = m_pFontDict->GetElementValue("Encoding");
+  CPDF_Object* pEncoding = m_pFontDict->GetDirectObjectBy("Encoding");
   LoadPDFEncoding(pEncoding, m_BaseEncoding, m_pCharNames, m_pFontFile != NULL,
                   m_Font.IsTTFont());
   LoadGlyphMap();
diff --git a/core/fpdfapi/fpdf_font/cpdf_type3font.cpp b/core/fpdfapi/fpdf_font/cpdf_type3font.cpp
index 8591b87be4..9f37d4adee 100644
--- a/core/fpdfapi/fpdf_font/cpdf_type3font.cpp
+++ b/core/fpdfapi/fpdf_font/cpdf_type3font.cpp
@@ -70,7 +70,7 @@ FX_BOOL CPDF_Type3Font::Load() {
     }
   }
   m_pCharProcs = m_pFontDict->GetDictBy("CharProcs");
-  CPDF_Object* pEncoding = m_pFontDict->GetElementValue("Encoding");
+  CPDF_Object* pEncoding = m_pFontDict->GetDirectObjectBy("Encoding");
   if (pEncoding) {
     LoadPDFEncoding(pEncoding, m_BaseEncoding, m_pCharNames, FALSE, FALSE);
     if (m_pCharNames) {
@@ -103,7 +103,7 @@ CPDF_Type3Char* CPDF_Type3Font::LoadChar(uint32_t charcode, int level) {
     return nullptr;
 
   CPDF_Stream* pStream =
-      ToStream(m_pCharProcs ? m_pCharProcs->GetElementValue(name) : nullptr);
+      ToStream(m_pCharProcs ? m_pCharProcs->GetDirectObjectBy(name) : nullptr);
   if (!pStream)
     return nullptr;
 
diff --git a/core/fpdfapi/fpdf_page/cpdf_colorspace.cpp b/core/fpdfapi/fpdf_page/cpdf_colorspace.cpp
index 213d777ecb..c5aa5e3905 100644
--- a/core/fpdfapi/fpdf_page/cpdf_colorspace.cpp
+++ b/core/fpdfapi/fpdf_page/cpdf_colorspace.cpp
@@ -355,7 +355,7 @@ CPDF_ColorSpace* CPDF_ColorSpace::Load(CPDF_Document* pDoc, CPDF_Object* pObj) {
   if (!pArray || pArray->GetCount() == 0)
     return nullptr;
 
-  CPDF_Object* pFamilyObj = pArray->GetElementValue(0);
+  CPDF_Object* pFamilyObj = pArray->GetDirectObjectAt(0);
   if (!pFamilyObj)
     return nullptr;
 
@@ -802,7 +802,7 @@ FX_BOOL CPDF_ICCBasedCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
   CPDF_Dictionary* pDict = pStream->GetDict();
   if (!m_pProfile->m_pTransform) {  // No valid ICC profile or using sRGB
     CPDF_Object* pAlterCSObj =
-        pDict ? pDict->GetElementValue("Alternate") : nullptr;
+        pDict ? pDict->GetDirectObjectBy("Alternate") : nullptr;
     if (pAlterCSObj) {
       CPDF_ColorSpace* pAlterCS = CPDF_ColorSpace::Load(pDoc, pAlterCSObj);
       if (pAlterCS) {
@@ -978,7 +978,7 @@ FX_BOOL CPDF_IndexedCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
   if (pArray->GetCount() < 4) {
     return FALSE;
   }
-  CPDF_Object* pBaseObj = pArray->GetElementValue(1);
+  CPDF_Object* pBaseObj = pArray->GetDirectObjectAt(1);
   if (pBaseObj == m_pArray) {
     return FALSE;
   }
@@ -998,7 +998,7 @@ FX_BOOL CPDF_IndexedCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
   }
   m_MaxIndex = pArray->GetIntegerAt(2);
 
-  CPDF_Object* pTableObj = pArray->GetElementValue(3);
+  CPDF_Object* pTableObj = pArray->GetDirectObjectAt(3);
   if (!pTableObj)
     return FALSE;
 
@@ -1062,7 +1062,7 @@ CPDF_PatternCS::~CPDF_PatternCS() {
 }
 
 FX_BOOL CPDF_PatternCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
-  CPDF_Object* pBaseCS = pArray->GetElementValue(1);
+  CPDF_Object* pBaseCS = pArray->GetDirectObjectAt(1);
   if (pBaseCS == m_pArray) {
     return FALSE;
   }
@@ -1129,7 +1129,7 @@ FX_BOOL CPDF_SeparationCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
     m_Type = None;
   } else {
     m_Type = Colorant;
-    CPDF_Object* pAltCS = pArray->GetElementValue(2);
+    CPDF_Object* pAltCS = pArray->GetDirectObjectAt(2);
     if (pAltCS == m_pArray) {
       return FALSE;
     }
@@ -1137,7 +1137,7 @@ FX_BOOL CPDF_SeparationCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
     if (!m_pAltCS) {
       return FALSE;
     }
-    CPDF_Object* pFuncObj = pArray->GetElementValue(3);
+    CPDF_Object* pFuncObj = pArray->GetDirectObjectAt(3);
     if (pFuncObj && !pFuncObj->IsName())
       m_pFunc = CPDF_Function::Load(pFuncObj);
 
@@ -1209,17 +1209,17 @@ void CPDF_DeviceNCS::GetDefaultValue(int iComponent,
 }
 
 FX_BOOL CPDF_DeviceNCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) {
-  CPDF_Array* pObj = ToArray(pArray->GetElementValue(1));
+  CPDF_Array* pObj = ToArray(pArray->GetDirectObjectAt(1));
   if (!pObj)
     return FALSE;
 
   m_nComponents = pObj->GetCount();
-  CPDF_Object* pAltCS = pArray->GetElementValue(2);
+  CPDF_Object* pAltCS = pArray->GetDirectObjectAt(2);
   if (!pAltCS || pAltCS == m_pArray) {
     return FALSE;
   }
   m_pAltCS = Load(pDoc, pAltCS);
-  m_pFunc = CPDF_Function::Load(pArray->GetElementValue(3));
+  m_pFunc = CPDF_Function::Load(pArray->GetDirectObjectAt(3));
   if (!m_pAltCS || !m_pFunc) {
     return FALSE;
   }
diff --git a/core/fpdfapi/fpdf_page/cpdf_page.cpp b/core/fpdfapi/fpdf_page/cpdf_page.cpp
index 6fd9b0a9b3..dd298f382f 100644
--- a/core/fpdfapi/fpdf_page/cpdf_page.cpp
+++ b/core/fpdfapi/fpdf_page/cpdf_page.cpp
@@ -18,7 +18,7 @@ CPDF_Object* FPDFAPI_GetPageAttr(CPDF_Dictionary* pPageDict,
                                  const CFX_ByteStringC& name) {
   int level = 0;
   while (1) {
-    CPDF_Object* pObj = pPageDict->GetElementValue(name);
+    CPDF_Object* pObj = pPageDict->GetDirectObjectBy(name);
     if (pObj) {
       return pObj;
     }
diff --git a/core/fpdfapi/fpdf_page/cpdf_shadingpattern.cpp b/core/fpdfapi/fpdf_page/cpdf_shadingpattern.cpp
index 6ccf1403f9..4ca9acbea7 100644
--- a/core/fpdfapi/fpdf_page/cpdf_shadingpattern.cpp
+++ b/core/fpdfapi/fpdf_page/cpdf_shadingpattern.cpp
@@ -39,7 +39,7 @@ CPDF_ShadingPattern::CPDF_ShadingPattern(CPDF_Document* pDoc,
   if (!bShading) {
     CPDF_Dictionary* pDict = m_pPatternObj->GetDict();
     m_Pattern2Form = pDict->GetMatrixBy("Matrix");
-    m_pShadingObj = pDict->GetElementValue("Shading");
+    m_pShadingObj = pDict->GetDirectObjectBy("Shading");
     if (parentMatrix)
       m_Pattern2Form.Concat(*parentMatrix);
   }
@@ -70,19 +70,19 @@ FX_BOOL CPDF_ShadingPattern::Load() {
       delete m_pFunctions[i];
     m_nFuncs = 0;
   }
-  CPDF_Object* pFunc = pShadingDict->GetElementValue("Function");
+  CPDF_Object* pFunc = pShadingDict->GetDirectObjectBy("Function");
   if (pFunc) {
     if (CPDF_Array* pArray = pFunc->AsArray()) {
       m_nFuncs = std::min<int>(pArray->GetCount(), 4);
 
       for (int i = 0; i < m_nFuncs; i++)
-        m_pFunctions[i] = CPDF_Function::Load(pArray->GetElementValue(i));
+        m_pFunctions[i] = CPDF_Function::Load(pArray->GetDirectObjectAt(i));
     } else {
       m_pFunctions[0] = CPDF_Function::Load(pFunc);
       m_nFuncs = 1;
     }
   }
-  CPDF_Object* pCSObj = pShadingDict->GetElementValue("ColorSpace");
+  CPDF_Object* pCSObj = pShadingDict->GetDirectObjectBy("ColorSpace");
   if (!pCSObj)
     return FALSE;
 
diff --git a/core/fpdfapi/fpdf_page/fpdf_page_doc.cpp b/core/fpdfapi/fpdf_page/fpdf_page_doc.cpp
index d762e1aa53..9f4ad5a7d5 100644
--- a/core/fpdfapi/fpdf_page/fpdf_page_doc.cpp
+++ b/core/fpdfapi/fpdf_page/fpdf_page_doc.cpp
@@ -331,7 +331,7 @@ CPDF_ColorSpace* CPDF_DocPageData::GetColorSpace(
     if (!pCS && pResources) {
       CPDF_Dictionary* pList = pResources->GetDictBy("ColorSpace");
       if (pList) {
-        pCSObj = pList->GetElementValue(name);
+        pCSObj = pList->GetDirectObjectBy(name);
         return GetColorSpace(pCSObj, nullptr);
       }
     }
@@ -345,13 +345,13 @@ CPDF_ColorSpace* CPDF_DocPageData::GetColorSpace(
     CPDF_Object* pDefaultCS = nullptr;
     switch (pCS->GetFamily()) {
       case PDFCS_DEVICERGB:
-        pDefaultCS = pColorSpaces->GetElementValue("DefaultRGB");
+        pDefaultCS = pColorSpaces->GetDirectObjectBy("DefaultRGB");
         break;
       case PDFCS_DEVICEGRAY:
-        pDefaultCS = pColorSpaces->GetElementValue("DefaultGray");
+        pDefaultCS = pColorSpaces->GetDirectObjectBy("DefaultGray");
         break;
       case PDFCS_DEVICECMYK:
-        pDefaultCS = pColorSpaces->GetElementValue("DefaultCMYK");
+        pDefaultCS = pColorSpaces->GetDirectObjectBy("DefaultCMYK");
         break;
     }
     return pDefaultCS ? GetColorSpace(pDefaultCS, nullptr) : pCS;
@@ -361,7 +361,7 @@ CPDF_ColorSpace* CPDF_DocPageData::GetColorSpace(
   if (!pArray || pArray->GetCount() == 0)
     return nullptr;
   if (pArray->GetCount() == 1)
-    return GetColorSpace(pArray->GetElementValue(0), pResources);
+    return GetColorSpace(pArray->GetDirectObjectAt(0), pResources);
 
   CPDF_CountedColorSpace* csData = nullptr;
   auto it = m_ColorSpaceMap.find(pCSObj);
diff --git a/core/fpdfapi/fpdf_page/fpdf_page_func.cpp b/core/fpdfapi/fpdf_page/fpdf_page_func.cpp
index 0fa2dd7712..7d396ed032 100644
--- a/core/fpdfapi/fpdf_page/fpdf_page_func.cpp
+++ b/core/fpdfapi/fpdf_page/fpdf_page_func.cpp
@@ -776,7 +776,7 @@ FX_BOOL CPDF_StitchFunc::v_Init(CPDF_Object* pObj) {
   }
   m_nOutputs = 0;
   for (uint32_t i = 0; i < nSubs; i++) {
-    CPDF_Object* pSub = pArray->GetElementValue(i);
+    CPDF_Object* pSub = pArray->GetDirectObjectAt(i);
     if (pSub == pObj) {
       return FALSE;
     }
diff --git a/core/fpdfapi/fpdf_page/fpdf_page_parser.cpp b/core/fpdfapi/fpdf_page/fpdf_page_parser.cpp
index 75b745222f..32517d6b54 100644
--- a/core/fpdfapi/fpdf_page/fpdf_page_parser.cpp
+++ b/core/fpdfapi/fpdf_page/fpdf_page_parser.cpp
@@ -584,7 +584,7 @@ void CPDF_StreamContentParser::Handle_BeginImage() {
   PDF_ReplaceAbbr(pDict);
   CPDF_Object* pCSObj = NULL;
   if (pDict->KeyExist("ColorSpace")) {
-    pCSObj = pDict->GetElementValue("ColorSpace");
+    pCSObj = pDict->GetDirectObjectBy("ColorSpace");
     if (pCSObj->IsName()) {
       CFX_ByteString name = pCSObj->GetString();
       if (name != "DeviceRGB" && name != "DeviceGray" && name != "DeviceCMYK") {
@@ -731,7 +731,7 @@ void CPDF_StreamContentParser::Handle_ExecuteXObject() {
       pList = m_pPageResources->GetDictBy("XObject");
     if (!pList)
       return;
-    CPDF_Reference* pRes = ToReference(pList->GetElement(name));
+    CPDF_Reference* pRes = ToReference(pList->GetObjectBy(name));
     if (!pRes)
       return;
 
@@ -1268,7 +1268,7 @@ CPDF_Object* CPDF_StreamContentParser::FindResourceObj(
     if (!pList) {
       return NULL;
     }
-    CPDF_Object* pRes = pList->GetElementValue(name);
+    CPDF_Object* pRes = pList->GetDirectObjectBy(name);
     return pRes;
   }
   CPDF_Dictionary* pList = m_pResources->GetDictBy(type);
@@ -1280,10 +1280,10 @@ CPDF_Object* CPDF_StreamContentParser::FindResourceObj(
     if (!pList) {
       return NULL;
     }
-    CPDF_Object* pRes = pList->GetElementValue(name);
+    CPDF_Object* pRes = pList->GetDirectObjectBy(name);
     return pRes;
   }
-  CPDF_Object* pRes = pList->GetElementValue(name);
+  CPDF_Object* pRes = pList->GetDirectObjectBy(name);
   return pRes;
 }
 
@@ -1432,7 +1432,7 @@ void CPDF_StreamContentParser::Handle_ShowText_Positioning() {
   int n = pArray->GetCount();
   int nsegs = 0;
   for (int i = 0; i < n; i++) {
-    if (pArray->GetElementValue(i)->IsString())
+    if (pArray->GetDirectObjectAt(i)->IsString())
       nsegs++;
   }
   if (nsegs == 0) {
@@ -1448,7 +1448,7 @@ void CPDF_StreamContentParser::Handle_ShowText_Positioning() {
   int iSegment = 0;
   FX_FLOAT fInitKerning = 0;
   for (int i = 0; i < n; i++) {
-    CPDF_Object* pObj = pArray->GetElementValue(i);
+    CPDF_Object* pObj = pArray->GetDirectObjectAt(i);
     if (pObj->IsString()) {
       CFX_ByteString str = pObj->GetString();
       if (str.IsEmpty()) {
@@ -1811,7 +1811,7 @@ void PDF_ReplaceAbbr(CPDF_Object* pObj) {
     case CPDF_Object::ARRAY: {
       CPDF_Array* pArray = pObj->AsArray();
       for (uint32_t i = 0; i < pArray->GetCount(); i++) {
-        CPDF_Object* pElement = pArray->GetElement(i);
+        CPDF_Object* pElement = pArray->GetObjectAt(i);
         if (pElement->IsName()) {
           CFX_ByteString name = pElement->GetString();
           CFX_ByteStringC fullname = PDF_FindFullName(
diff --git a/core/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp b/core/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp
index 8bff5445ff..a5db2d6d20 100644
--- a/core/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp
+++ b/core/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp
@@ -134,7 +134,7 @@ CPDF_Stream* CPDF_StreamParser::ReadInlineStream(CPDF_Document* pDoc,
 
   CFX_ByteString Decoder;
   CPDF_Dictionary* pParam = nullptr;
-  CPDF_Object* pFilter = pDict->GetElementValue("Filter");
+  CPDF_Object* pFilter = pDict->GetDirectObjectBy("Filter");
   if (pFilter) {
     if (CPDF_Array* pArray = pFilter->AsArray()) {
       Decoder = pArray->GetStringAt(0);
@@ -712,7 +712,7 @@ void CPDF_ContentParser::Start(CPDF_Page* pPage, CPDF_ParseOptions* pOptions) {
   m_InternalStage = STAGE_GETCONTENT;
   m_CurrentOffset = 0;
 
-  CPDF_Object* pContent = pPage->m_pFormDict->GetElementValue("Contents");
+  CPDF_Object* pContent = pPage->m_pFormDict->GetDirectObjectBy("Contents");
   if (!pContent) {
     m_Status = Done;
     return;
@@ -826,7 +826,7 @@ void CPDF_ContentParser::Continue(IFX_Pause* pPause) {
             m_pObjectHolder->m_pFormDict->GetArrayBy("Contents");
         m_StreamArray[m_CurrentOffset].reset(new CPDF_StreamAcc);
         CPDF_Stream* pStreamObj = ToStream(
-            pContent ? pContent->GetElementValue(m_CurrentOffset) : nullptr);
+            pContent ? pContent->GetDirectObjectAt(m_CurrentOffset) : nullptr);
         m_StreamArray[m_CurrentOffset]->LoadAllData(pStreamObj, FALSE);
         m_CurrentOffset++;
       }
diff --git a/core/fpdfapi/fpdf_parser/cpdf_array.cpp b/core/fpdfapi/fpdf_parser/cpdf_array.cpp
index 544469916b..7ea2734745 100644
--- a/core/fpdfapi/fpdf_parser/cpdf_array.cpp
+++ b/core/fpdfapi/fpdf_parser/cpdf_array.cpp
@@ -76,13 +76,13 @@ CFX_Matrix CPDF_Array::GetMatrix() {
   return matrix;
 }
 
-CPDF_Object* CPDF_Array::GetElement(uint32_t i) const {
+CPDF_Object* CPDF_Array::GetObjectAt(uint32_t i) const {
   if (i >= (uint32_t)m_Objects.GetSize())
     return nullptr;
   return m_Objects.GetAt(i);
 }
 
-CPDF_Object* CPDF_Array::GetElementValue(uint32_t i) const {
+CPDF_Object* CPDF_Array::GetDirectObjectAt(uint32_t i) const {
   if (i >= (uint32_t)m_Objects.GetSize())
     return nullptr;
   return m_Objects.GetAt(i)->GetDirect();
@@ -113,7 +113,7 @@ FX_FLOAT CPDF_Array::GetNumberAt(uint32_t i) const {
 }
 
 CPDF_Dictionary* CPDF_Array::GetDictAt(uint32_t i) const {
-  CPDF_Object* p = GetElementValue(i);
+  CPDF_Object* p = GetDirectObjectAt(i);
   if (!p)
     return NULL;
   if (CPDF_Dictionary* pDict = p->AsDictionary())
@@ -124,11 +124,11 @@ CPDF_Dictionary* CPDF_Array::GetDictAt(uint32_t i) const {
 }
 
 CPDF_Stream* CPDF_Array::GetStreamAt(uint32_t i) const {
-  return ToStream(GetElementValue(i));
+  return ToStream(GetDirectObjectAt(i));
 }
 
 CPDF_Array* CPDF_Array::GetArrayAt(uint32_t i) const {
-  return ToArray(GetElementValue(i));
+  return ToArray(GetDirectObjectAt(i));
 }
 
 void CPDF_Array::RemoveAt(uint32_t i, int nCount) {
diff --git a/core/fpdfapi/fpdf_parser/cpdf_data_avail.cpp b/core/fpdfapi/fpdf_parser/cpdf_data_avail.cpp
index 858133d58e..a4b85a34fa 100644
--- a/core/fpdfapi/fpdf_parser/cpdf_data_avail.cpp
+++ b/core/fpdfapi/fpdf_parser/cpdf_data_avail.cpp
@@ -153,7 +153,7 @@ FX_BOOL CPDF_DataAvail::IsObjectsAvail(
       case CPDF_Object::ARRAY: {
         CPDF_Array* pArray = pObj->GetArray();
         for (uint32_t k = 0; k < pArray->GetCount(); ++k)
-          new_obj_array.Add(pArray->GetElement(k));
+          new_obj_array.Add(pArray->GetObjectAt(k));
       } break;
       case CPDF_Object::STREAM:
         pObj = pObj->GetDict();
@@ -451,7 +451,7 @@ FX_BOOL CPDF_DataAvail::CheckRoot(IPDF_DataAvail::DownloadHints* pHints) {
     return FALSE;
   }
 
-  CPDF_Reference* pRef = ToReference(pDict->GetElement("Pages"));
+  CPDF_Reference* pRef = ToReference(pDict->GetObjectBy("Pages"));
   if (!pRef) {
     m_docStatus = PDF_DATAAVAIL_ERROR;
     return FALSE;
@@ -459,7 +459,7 @@ FX_BOOL CPDF_DataAvail::CheckRoot(IPDF_DataAvail::DownloadHints* pHints) {
 
   m_PagesObjNum = pRef->GetRefObjNum();
   CPDF_Reference* pAcroFormRef =
-      ToReference(m_pRoot->GetDict()->GetElement("AcroForm"));
+      ToReference(m_pRoot->GetDict()->GetObjectBy("AcroForm"));
   if (pAcroFormRef) {
     m_bHaveAcroForm = TRUE;
     m_dwAcroFormObjNum = pAcroFormRef->GetRefObjNum();
@@ -477,7 +477,7 @@ FX_BOOL CPDF_DataAvail::CheckRoot(IPDF_DataAvail::DownloadHints* pHints) {
 FX_BOOL CPDF_DataAvail::PreparePageItem() {
   CPDF_Dictionary* pRoot = m_pDocument->GetRoot();
   CPDF_Reference* pRef =
-      ToReference(pRoot ? pRoot->GetElement("Pages") : nullptr);
+      ToReference(pRoot ? pRoot->GetObjectBy("Pages") : nullptr);
   if (!pRef) {
     m_docStatus = PDF_DATAAVAIL_ERROR;
     return FALSE;
@@ -515,7 +515,7 @@ FX_BOOL CPDF_DataAvail::CheckPage(IPDF_DataAvail::DownloadHints* pHints) {
       if (pArray) {
         int32_t iSize = pArray->GetCount();
         for (int32_t j = 0; j < iSize; ++j) {
-          if (CPDF_Reference* pRef = ToReference(pArray->GetElement(j)))
+          if (CPDF_Reference* pRef = ToReference(pArray->GetObjectAt(j)))
             UnavailObjList.Add(pRef->GetRefObjNum());
         }
       }
@@ -573,7 +573,7 @@ FX_BOOL CPDF_DataAvail::GetPageKids(CPDF_Parser* pParser, CPDF_Object* pPages) {
   }
 
   CPDF_Dictionary* pDict = pPages->GetDict();
-  CPDF_Object* pKids = pDict ? pDict->GetElement("Kids") : NULL;
+  CPDF_Object* pKids = pDict ? pDict->GetObjectBy("Kids") : NULL;
   if (!pKids)
     return TRUE;
 
@@ -584,7 +584,7 @@ FX_BOOL CPDF_DataAvail::GetPageKids(CPDF_Parser* pParser, CPDF_Object* pPages) {
     case CPDF_Object::ARRAY: {
       CPDF_Array* pKidsArray = pKids->AsArray();
       for (uint32_t i = 0; i < pKidsArray->GetCount(); ++i) {
-        if (CPDF_Reference* pRef = ToReference(pKidsArray->GetElement(i)))
+        if (CPDF_Reference* pRef = ToReference(pKidsArray->GetObjectAt(i)))
           m_PageObjList.Add(pRef->GetRefObjNum());
       }
     } break;
@@ -647,19 +647,19 @@ FX_BOOL CPDF_DataAvail::CheckHeader(IPDF_DataAvail::DownloadHints* pHints) {
 
 FX_BOOL CPDF_DataAvail::CheckFirstPage(IPDF_DataAvail::DownloadHints* pHints) {
   CPDF_Dictionary* pDict = m_pLinearized->GetDict();
-  CPDF_Object* pEndOffSet = pDict ? pDict->GetElement("E") : NULL;
+  CPDF_Object* pEndOffSet = pDict ? pDict->GetObjectBy("E") : NULL;
   if (!pEndOffSet) {
     m_docStatus = PDF_DATAAVAIL_ERROR;
     return FALSE;
   }
 
-  CPDF_Object* pXRefOffset = pDict ? pDict->GetElement("T") : NULL;
+  CPDF_Object* pXRefOffset = pDict ? pDict->GetObjectBy("T") : NULL;
   if (!pXRefOffset) {
     m_docStatus = PDF_DATAAVAIL_ERROR;
     return FALSE;
   }
 
-  CPDF_Object* pFileLen = pDict ? pDict->GetElement("L") : NULL;
+  CPDF_Object* pFileLen = pDict ? pDict->GetObjectBy("L") : NULL;
   if (!pFileLen) {
     m_docStatus = PDF_DATAAVAIL_ERROR;
     return FALSE;
@@ -746,7 +746,7 @@ FX_BOOL CPDF_DataAvail::CheckHintTables(IPDF_DataAvail::DownloadHints* pHints) {
     return FALSE;
   }
 
-  int nPageCount = pDict->GetElementValue("N")->GetInteger();
+  int nPageCount = pDict->GetDirectObjectBy("N")->GetInteger();
   if (nPageCount <= 1) {
     m_docStatus = PDF_DATAAVAIL_DONE;
     return TRUE;
@@ -754,12 +754,12 @@ FX_BOOL CPDF_DataAvail::CheckHintTables(IPDF_DataAvail::DownloadHints* pHints) {
 
   CPDF_Array* pHintStreamRange = pDict->GetArrayBy("H");
   FX_FILESIZE szHSStart =
-      pHintStreamRange->GetElementValue(0)
-          ? pHintStreamRange->GetElementValue(0)->GetInteger()
+      pHintStreamRange->GetDirectObjectAt(0)
+          ? pHintStreamRange->GetDirectObjectAt(0)->GetInteger()
           : 0;
   FX_FILESIZE szHSLength =
-      pHintStreamRange->GetElementValue(1)
-          ? pHintStreamRange->GetElementValue(1)->GetInteger()
+      pHintStreamRange->GetDirectObjectAt(1)
+          ? pHintStreamRange->GetDirectObjectAt(1)->GetInteger()
           : 0;
   if (szHSStart < 0 || szHSLength <= 0) {
     m_docStatus = PDF_DATAAVAIL_ERROR;
@@ -864,8 +864,8 @@ FX_BOOL CPDF_DataAvail::IsLinearizedFile(uint8_t* pData, uint32_t dwLen) {
     return FALSE;
 
   CPDF_Dictionary* pDict = m_pLinearized->GetDict();
-  if (pDict && pDict->GetElement("Linearized")) {
-    CPDF_Object* pLen = pDict->GetElement("L");
+  if (pDict && pDict->GetObjectBy("Linearized")) {
+    CPDF_Object* pLen = pDict->GetObjectBy("L");
     if (!pLen)
       return FALSE;
 
@@ -874,7 +874,7 @@ FX_BOOL CPDF_DataAvail::IsLinearizedFile(uint8_t* pData, uint32_t dwLen) {
 
     m_bLinearized = TRUE;
 
-    if (CPDF_Number* pNo = ToNumber(pDict->GetElement("P")))
+    if (CPDF_Number* pNo = ToNumber(pDict->GetObjectBy("P")))
       m_dwFirstPageNo = pNo->GetInteger();
 
     return TRUE;
@@ -954,7 +954,7 @@ int32_t CPDF_DataAvail::CheckCrossRefStream(
     }
 
     CPDF_Dictionary* pDict = pObj->GetDict();
-    CPDF_Name* pName = ToName(pDict ? pDict->GetElement("Type") : nullptr);
+    CPDF_Name* pName = ToName(pDict ? pDict->GetObjectBy("Type") : nullptr);
     if (pName) {
       if (pName->GetString() == "XRef") {
         m_Pos += m_parser.m_pSyntax->SavePos();
@@ -1204,7 +1204,7 @@ FX_BOOL CPDF_DataAvail::CheckTrailer(IPDF_DataAvail::DownloadHints* pHints) {
       return FALSE;
 
     CPDF_Dictionary* pTrailerDict = pTrailer->GetDict();
-    CPDF_Object* pEncrypt = pTrailerDict->GetElement("Encrypt");
+    CPDF_Object* pEncrypt = pTrailerDict->GetObjectBy("Encrypt");
     if (ToReference(pEncrypt)) {
       m_docStatus = PDF_DATAAVAIL_LOADALLFILE;
       return TRUE;
@@ -1286,7 +1286,7 @@ FX_BOOL CPDF_DataAvail::CheckArrayPageNode(
 
   pPageNode->m_type = PDF_PAGENODE_PAGES;
   for (uint32_t i = 0; i < pArray->GetCount(); ++i) {
-    CPDF_Reference* pKid = ToReference(pArray->GetElement(i));
+    CPDF_Reference* pKid = ToReference(pArray->GetObjectAt(i));
     if (!pKid)
       continue;
 
@@ -1333,7 +1333,7 @@ FX_BOOL CPDF_DataAvail::CheckUnkownPageNode(
   CFX_ByteString type = pDict->GetStringBy("Type");
   if (type == "Pages") {
     pPageNode->m_type = PDF_PAGENODE_PAGES;
-    CPDF_Object* pKids = pDict->GetElement("Kids");
+    CPDF_Object* pKids = pDict->GetObjectBy("Kids");
     if (!pKids) {
       m_docStatus = PDF_DATAAVAIL_PAGE;
       return TRUE;
@@ -1349,7 +1349,7 @@ FX_BOOL CPDF_DataAvail::CheckUnkownPageNode(
       case CPDF_Object::ARRAY: {
         CPDF_Array* pKidsArray = pKids->AsArray();
         for (uint32_t i = 0; i < pKidsArray->GetCount(); ++i) {
-          CPDF_Reference* pKid = ToReference(pKidsArray->GetElement(i));
+          CPDF_Reference* pKid = ToReference(pKidsArray->GetObjectAt(i));
           if (!pKid)
             continue;
 
@@ -1544,7 +1544,7 @@ FX_BOOL CPDF_DataAvail::CheckPageAnnots(int32_t iPage,
     if (!pPageDict)
       return TRUE;
 
-    CPDF_Object* pAnnots = pPageDict->GetElement("Annots");
+    CPDF_Object* pAnnots = pPageDict->GetObjectBy("Annots");
     if (!pAnnots)
       return TRUE;
 
@@ -1587,7 +1587,7 @@ FX_BOOL CPDF_DataAvail::HaveResourceAncestor(CPDF_Dictionary* pDict) {
   if (++s_CurrentDataAvailRecursionDepth > kMaxDataAvailRecursionDepth)
     return FALSE;
 
-  CPDF_Object* pParent = pDict->GetElement("Parent");
+  CPDF_Object* pParent = pDict->GetObjectBy("Parent");
   if (!pParent)
     return FALSE;
 
@@ -1595,7 +1595,7 @@ FX_BOOL CPDF_DataAvail::HaveResourceAncestor(CPDF_Dictionary* pDict) {
   if (!pParentDict)
     return FALSE;
 
-  CPDF_Object* pRet = pParentDict->GetElement("Resources");
+  CPDF_Object* pRet = pParentDict->GetObjectBy("Resources");
   if (pRet) {
     m_pPageResource = pRet;
     return TRUE;
@@ -1709,7 +1709,7 @@ IPDF_DataAvail::DocAvailStatus CPDF_DataAvail::IsPageAvail(
   }
 
   if (m_pPageDict && !m_bNeedDownLoadResource) {
-    m_pPageResource = m_pPageDict->GetElement("Resources");
+    m_pPageResource = m_pPageDict->GetObjectBy("Resources");
     if (!m_pPageResource)
       m_bNeedDownLoadResource = HaveResourceAncestor(m_pPageDict);
     else
@@ -1763,7 +1763,7 @@ void CPDF_DataAvail::GetLinearizedMainXRefInfo(FX_FILESIZE* pPos,
 int CPDF_DataAvail::GetPageCount() const {
   if (m_pLinearized) {
     CPDF_Dictionary* pDict = m_pLinearized->GetDict();
-    CPDF_Object* pObj = pDict ? pDict->GetElementValue("N") : nullptr;
+    CPDF_Object* pObj = pDict ? pDict->GetDirectObjectBy("N") : nullptr;
     return pObj ? pObj->GetInteger() : 0;
   }
   return m_pDocument ? m_pDocument->GetPageCount() : 0;
@@ -1775,7 +1775,7 @@ CPDF_Dictionary* CPDF_DataAvail::GetPage(int index) {
 
   if (m_pLinearized) {
     CPDF_Dictionary* pDict = m_pLinearized->GetDict();
-    CPDF_Object* pObj = pDict ? pDict->GetElementValue("P") : nullptr;
+    CPDF_Object* pObj = pDict ? pDict->GetDirectObjectBy("P") : nullptr;
 
     int pageNum = pObj ? pObj->GetInteger() : 0;
     if (m_pHintTables && index != pageNum) {
@@ -1810,7 +1810,7 @@ IPDF_DataAvail::DocFormStatus CPDF_DataAvail::IsFormAvail(
     if (!pRoot)
       return FormAvailable;
 
-    CPDF_Object* pAcroForm = pRoot->GetElement("AcroForm");
+    CPDF_Object* pAcroForm = pRoot->GetObjectBy("AcroForm");
     if (!pAcroForm)
       return FormNotExist;
 
diff --git a/core/fpdfapi/fpdf_parser/cpdf_dictionary.cpp b/core/fpdfapi/fpdf_parser/cpdf_dictionary.cpp
index 75730e5754..5f86a7bbc2 100644
--- a/core/fpdfapi/fpdf_parser/cpdf_dictionary.cpp
+++ b/core/fpdfapi/fpdf_parser/cpdf_dictionary.cpp
@@ -51,32 +51,32 @@ CPDF_Object* CPDF_Dictionary::Clone(FX_BOOL bDirect) const {
   return pCopy;
 }
 
-CPDF_Object* CPDF_Dictionary::GetElement(const CFX_ByteStringC& key) const {
+CPDF_Object* CPDF_Dictionary::GetObjectBy(const CFX_ByteStringC& key) const {
   auto it = m_Map.find(key);
   if (it == m_Map.end())
     return nullptr;
   return it->second;
 }
-CPDF_Object* CPDF_Dictionary::GetElementValue(
+CPDF_Object* CPDF_Dictionary::GetDirectObjectBy(
     const CFX_ByteStringC& key) const {
-  CPDF_Object* p = GetElement(key);
+  CPDF_Object* p = GetObjectBy(key);
   return p ? p->GetDirect() : nullptr;
 }
 
 CFX_ByteString CPDF_Dictionary::GetStringBy(const CFX_ByteStringC& key) const {
-  CPDF_Object* p = GetElement(key);
+  CPDF_Object* p = GetObjectBy(key);
   return p ? p->GetString() : CFX_ByteString();
 }
 
 CFX_ByteStringC CPDF_Dictionary::GetConstStringBy(
     const CFX_ByteStringC& key) const {
-  CPDF_Object* p = GetElement(key);
+  CPDF_Object* p = GetObjectBy(key);
   return p ? p->GetConstString() : CFX_ByteStringC();
 }
 
 CFX_WideString CPDF_Dictionary::GetUnicodeTextBy(
     const CFX_ByteStringC& key) const {
-  CPDF_Object* p = GetElement(key);
+  CPDF_Object* p = GetObjectBy(key);
   if (CPDF_Reference* pRef = ToReference(p))
     p = pRef->GetDirect();
   return p ? p->GetUnicodeText() : CFX_WideString();
@@ -84,40 +84,40 @@ CFX_WideString CPDF_Dictionary::GetUnicodeTextBy(
 
 CFX_ByteString CPDF_Dictionary::GetStringBy(const CFX_ByteStringC& key,
                                             const CFX_ByteStringC& def) const {
-  CPDF_Object* p = GetElement(key);
+  CPDF_Object* p = GetObjectBy(key);
   return p ? p->GetString() : CFX_ByteString(def);
 }
 
 CFX_ByteStringC CPDF_Dictionary::GetConstStringBy(
     const CFX_ByteStringC& key,
     const CFX_ByteStringC& def) const {
-  CPDF_Object* p = GetElement(key);
+  CPDF_Object* p = GetObjectBy(key);
   return p ? p->GetConstString() : CFX_ByteStringC(def);
 }
 
 int CPDF_Dictionary::GetIntegerBy(const CFX_ByteStringC& key) const {
-  CPDF_Object* p = GetElement(key);
+  CPDF_Object* p = GetObjectBy(key);
   return p ? p->GetInteger() : 0;
 }
 
 int CPDF_Dictionary::GetIntegerBy(const CFX_ByteStringC& key, int def) const {
-  CPDF_Object* p = GetElement(key);
+  CPDF_Object* p = GetObjectBy(key);
   return p ? p->GetInteger() : def;
 }
 
 FX_FLOAT CPDF_Dictionary::GetNumberBy(const CFX_ByteStringC& key) const {
-  CPDF_Object* p = GetElement(key);
+  CPDF_Object* p = GetObjectBy(key);
   return p ? p->GetNumber() : 0;
 }
 
 FX_BOOL CPDF_Dictionary::GetBooleanBy(const CFX_ByteStringC& key,
                                       FX_BOOL bDefault) const {
-  CPDF_Object* p = GetElement(key);
+  CPDF_Object* p = GetObjectBy(key);
   return ToBoolean(p) ? p->GetInteger() : bDefault;
 }
 
 CPDF_Dictionary* CPDF_Dictionary::GetDictBy(const CFX_ByteStringC& key) const {
-  CPDF_Object* p = GetElementValue(key);
+  CPDF_Object* p = GetDirectObjectBy(key);
   if (!p)
     return nullptr;
   if (CPDF_Dictionary* pDict = p->AsDictionary())
@@ -128,11 +128,11 @@ CPDF_Dictionary* CPDF_Dictionary::GetDictBy(const CFX_ByteStringC& key) const {
 }
 
 CPDF_Array* CPDF_Dictionary::GetArrayBy(const CFX_ByteStringC& key) const {
-  return ToArray(GetElementValue(key));
+  return ToArray(GetDirectObjectBy(key));
 }
 
 CPDF_Stream* CPDF_Dictionary::GetStreamBy(const CFX_ByteStringC& key) const {
-  return ToStream(GetElementValue(key));
+  return ToStream(GetDirectObjectBy(key));
 }
 
 CFX_FloatRect CPDF_Dictionary::GetRectBy(const CFX_ByteStringC& key) const {
@@ -156,9 +156,9 @@ FX_BOOL CPDF_Dictionary::KeyExist(const CFX_ByteStringC& key) const {
 }
 
 bool CPDF_Dictionary::IsSignatureDict() const {
-  CPDF_Object* pType = GetElementValue("Type");
+  CPDF_Object* pType = GetDirectObjectBy("Type");
   if (!pType)
-    pType = GetElementValue("FT");
+    pType = GetDirectObjectBy("FT");
   return pType && pType->GetString() == "Sig";
 }
 
diff --git a/core/fpdfapi/fpdf_parser/cpdf_document.cpp b/core/fpdfapi/fpdf_parser/cpdf_document.cpp
index 9ed8b3fac6..9058ed6767 100644
--- a/core/fpdfapi/fpdf_parser/cpdf_document.cpp
+++ b/core/fpdfapi/fpdf_parser/cpdf_document.cpp
@@ -115,16 +115,16 @@ void CPDF_Document::LoadAsynDoc(CPDF_Dictionary* pLinearized) {
     m_ID2 = pIDArray->GetStringAt(1);
   }
   uint32_t dwPageCount = 0;
-  CPDF_Object* pCount = pLinearized->GetElement("N");
+  CPDF_Object* pCount = pLinearized->GetObjectBy("N");
   if (ToNumber(pCount))
     dwPageCount = pCount->GetInteger();
 
   m_PageList.SetSize(dwPageCount);
-  CPDF_Object* pNo = pLinearized->GetElement("P");
+  CPDF_Object* pNo = pLinearized->GetObjectBy("P");
   if (ToNumber(pNo))
     m_dwFirstPageNo = pNo->GetInteger();
 
-  CPDF_Object* pObjNum = pLinearized->GetElement("O");
+  CPDF_Object* pObjNum = pLinearized->GetObjectBy("O");
   if (ToNumber(pObjNum))
     m_dwFirstPageObjNum = pObjNum->GetInteger();
 }
@@ -236,7 +236,7 @@ int CPDF_Document::_FindPageIndex(CPDF_Dictionary* pNode,
     }
     if (count && count == pKidList->GetCount()) {
       for (uint32_t i = 0; i < count; i++) {
-        if (CPDF_Reference* pKid = ToReference(pKidList->GetElement(i))) {
+        if (CPDF_Reference* pKid = ToReference(pKidList->GetObjectAt(i))) {
           if (pKid->GetRefObjNum() == objnum) {
             m_PageList.SetAt(index + i, objnum);
             return index + i;
diff --git a/core/fpdfapi/fpdf_parser/cpdf_hint_tables.cpp b/core/fpdfapi/fpdf_parser/cpdf_hint_tables.cpp
index 147ae37ed0..d81725d06f 100644
--- a/core/fpdfapi/fpdf_parser/cpdf_hint_tables.cpp
+++ b/core/fpdfapi/fpdf_parser/cpdf_hint_tables.cpp
@@ -102,7 +102,7 @@ FX_BOOL CPDF_HintTables::ReadPageHintTable(CFX_BitStream* hStream) {
   // Item 13: Skip Item 13 which has 16 bits.
   hStream->SkipBits(16);
 
-  CPDF_Object* pPageNum = m_pLinearizedDict->GetElementValue("N");
+  CPDF_Object* pPageNum = m_pLinearizedDict->GetDirectObjectBy("N");
   int nPages = pPageNum ? pPageNum->GetInteger() : 0;
   if (nPages < 1)
     return FALSE;
@@ -135,12 +135,12 @@ FX_BOOL CPDF_HintTables::ReadPageHintTable(CFX_BitStream* hStream) {
     dwPageLenArray.Add(safePageLen.ValueOrDie());
   }
 
-  CPDF_Object* pOffsetE = m_pLinearizedDict->GetElementValue("E");
+  CPDF_Object* pOffsetE = m_pLinearizedDict->GetDirectObjectBy("E");
   int nOffsetE = pOffsetE ? pOffsetE->GetInteger() : -1;
   if (nOffsetE < 0)
     return FALSE;
 
-  CPDF_Object* pFirstPageNum = m_pLinearizedDict->GetElementValue("P");
+  CPDF_Object* pFirstPageNum = m_pLinearizedDict->GetDirectObjectBy("P");
   int nFirstPageNum = pFirstPageNum ? pFirstPageNum->GetInteger() : 0;
   for (int i = 0; i < nPages; ++i) {
     if (i == nFirstPageNum) {
@@ -256,7 +256,7 @@ FX_BOOL CPDF_HintTables::ReadSharedObjHintTable(CFX_BitStream* hStream,
   // Item 7: The number of bits needed to represent the difference between the
   // greatest and least length of a shared object group, in bytes.
   uint32_t dwDeltaGroupLen = hStream->GetBits(16);
-  CPDF_Object* pFirstPageObj = m_pLinearizedDict->GetElementValue("O");
+  CPDF_Object* pFirstPageObj = m_pLinearizedDict->GetDirectObjectBy("O");
   int nFirstPageObjNum = pFirstPageObj ? pFirstPageObj->GetInteger() : -1;
   if (nFirstPageObjNum < 0)
     return FALSE;
@@ -331,10 +331,10 @@ FX_BOOL CPDF_HintTables::GetPagePos(int index,
   szPageStartPos = m_szPageOffsetArray[index];
   szPageLength = GetItemLength(index, m_szPageOffsetArray);
 
-  CPDF_Object* pFirstPageNum = m_pLinearizedDict->GetElementValue("P");
+  CPDF_Object* pFirstPageNum = m_pLinearizedDict->GetDirectObjectBy("P");
   int nFirstPageNum = pFirstPageNum ? pFirstPageNum->GetInteger() : 0;
 
-  CPDF_Object* pFirstPageObjNum = m_pLinearizedDict->GetElementValue("O");
+  CPDF_Object* pFirstPageObjNum = m_pLinearizedDict->GetDirectObjectBy("O");
   if (!pFirstPageObjNum)
     return FALSE;
 
@@ -360,7 +360,7 @@ IPDF_DataAvail::DocAvailStatus CPDF_HintTables::CheckPage(
   if (!m_pLinearizedDict || !pHints)
     return IPDF_DataAvail::DataError;
 
-  CPDF_Object* pFirstAvailPage = m_pLinearizedDict->GetElementValue("P");
+  CPDF_Object* pFirstAvailPage = m_pLinearizedDict->GetDirectObjectBy("P");
   int nFirstAvailPage = pFirstAvailPage ? pFirstAvailPage->GetInteger() : 0;
   if (index == nFirstAvailPage)
     return IPDF_DataAvail::DataAvailable;
@@ -378,7 +378,7 @@ IPDF_DataAvail::DocAvailStatus CPDF_HintTables::CheckPage(
   for (int i = 0; i < index; ++i)
     offset += m_dwNSharedObjsArray[i];
 
-  CPDF_Object* pFirstPageObj = m_pLinearizedDict->GetElementValue("O");
+  CPDF_Object* pFirstPageObj = m_pLinearizedDict->GetDirectObjectBy("O");
   int nFirstPageObjNum = pFirstPageObj ? pFirstPageObj->GetInteger() : -1;
   if (nFirstPageObjNum < 0)
     return IPDF_DataAvail::DataError;
@@ -414,7 +414,7 @@ FX_BOOL CPDF_HintTables::LoadHintStream(CPDF_Stream* pHintStream) {
     return FALSE;
 
   CPDF_Dictionary* pDict = pHintStream->GetDict();
-  CPDF_Object* pOffset = pDict ? pDict->GetElement("S") : nullptr;
+  CPDF_Object* pOffset = pDict ? pDict->GetObjectBy("S") : nullptr;
   if (!pOffset || !pOffset->IsNumber())
     return FALSE;
 
@@ -447,7 +447,7 @@ int CPDF_HintTables::ReadPrimaryHintStreamOffset() const {
   if (!pRange)
     return -1;
 
-  CPDF_Object* pStreamOffset = pRange->GetElementValue(0);
+  CPDF_Object* pStreamOffset = pRange->GetDirectObjectAt(0);
   if (!pStreamOffset)
     return -1;
 
@@ -462,7 +462,7 @@ int CPDF_HintTables::ReadPrimaryHintStreamLength() const {
   if (!pRange)
     return -1;
 
-  CPDF_Object* pStreamLen = pRange->GetElementValue(1);
+  CPDF_Object* pStreamLen = pRange->GetDirectObjectAt(1);
   if (!pStreamLen)
     return -1;
 
diff --git a/core/fpdfapi/fpdf_parser/cpdf_object_unittest.cpp b/core/fpdfapi/fpdf_parser/cpdf_object_unittest.cpp
index 84ad7cfc32..2069a161ea 100644
--- a/core/fpdfapi/fpdf_parser/cpdf_object_unittest.cpp
+++ b/core/fpdfapi/fpdf_parser/cpdf_object_unittest.cpp
@@ -123,7 +123,7 @@ class PDFObjectsTest : public testing::Test {
         if (array1->GetCount() != array2->GetCount())
           return false;
         for (size_t i = 0; i < array1->GetCount(); ++i) {
-          if (!Equal(array1->GetElement(i), array2->GetElement(i)))
+          if (!Equal(array1->GetObjectAt(i), array2->GetObjectAt(i)))
             return false;
         }
         return true;
@@ -135,7 +135,7 @@ class PDFObjectsTest : public testing::Test {
           return false;
         for (CPDF_Dictionary::const_iterator it = dict1->begin();
              it != dict1->end(); ++it) {
-          if (!Equal(it->second, dict2->GetElement(it->first)))
+          if (!Equal(it->second, dict2->GetObjectBy(it->first)))
             return false;
         }
         return true;
@@ -706,8 +706,8 @@ TEST(PDFArrayTest, AddNumber) {
   for (size_t i = 0; i < FX_ArraySize(vals); ++i)
     arr->AddNumber(vals[i]);
   for (size_t i = 0; i < FX_ArraySize(vals); ++i) {
-    EXPECT_EQ(CPDF_Object::NUMBER, arr->GetElement(i)->GetType());
-    EXPECT_EQ(vals[i], arr->GetElement(i)->GetNumber());
+    EXPECT_EQ(CPDF_Object::NUMBER, arr->GetObjectAt(i)->GetType());
+    EXPECT_EQ(vals[i], arr->GetObjectAt(i)->GetNumber());
   }
 }
 
@@ -717,8 +717,8 @@ TEST(PDFArrayTest, AddInteger) {
   for (size_t i = 0; i < FX_ArraySize(vals); ++i)
     arr->AddInteger(vals[i]);
   for (size_t i = 0; i < FX_ArraySize(vals); ++i) {
-    EXPECT_EQ(CPDF_Object::NUMBER, arr->GetElement(i)->GetType());
-    EXPECT_EQ(vals[i], arr->GetElement(i)->GetNumber());
+    EXPECT_EQ(CPDF_Object::NUMBER, arr->GetObjectAt(i)->GetType());
+    EXPECT_EQ(vals[i], arr->GetObjectAt(i)->GetNumber());
   }
 }
 
@@ -732,14 +732,14 @@ TEST(PDFArrayTest, AddStringAndName) {
     name_array->AddName(vals[i]);
   }
   for (size_t i = 0; i < FX_ArraySize(vals); ++i) {
-    EXPECT_EQ(CPDF_Object::STRING, string_array->GetElement(i)->GetType());
-    EXPECT_STREQ(vals[i], string_array->GetElement(i)->GetString().c_str());
-    EXPECT_EQ(CPDF_Object::NAME, name_array->GetElement(i)->GetType());
-    EXPECT_STREQ(vals[i], name_array->GetElement(i)->GetString().c_str());
+    EXPECT_EQ(CPDF_Object::STRING, string_array->GetObjectAt(i)->GetType());
+    EXPECT_STREQ(vals[i], string_array->GetObjectAt(i)->GetString().c_str());
+    EXPECT_EQ(CPDF_Object::NAME, name_array->GetObjectAt(i)->GetType());
+    EXPECT_STREQ(vals[i], name_array->GetObjectAt(i)->GetString().c_str());
   }
 }
 
-TEST(PDFArrayTest, AddReferenceAndGetElement) {
+TEST(PDFArrayTest, AddReferenceAndGetObjectAt) {
   std::unique_ptr<CPDF_IndirectObjectHolder> holder(
       new CPDF_IndirectObjectHolder(nullptr));
   CPDF_Boolean* boolean_obj = new CPDF_Boolean(true);
@@ -766,11 +766,11 @@ TEST(PDFArrayTest, AddReferenceAndGetElement) {
   // Check arrays.
   EXPECT_EQ(arr->GetCount(), arr1->GetCount());
   for (size_t i = 0; i < arr->GetCount(); ++i) {
-    EXPECT_EQ(CPDF_Object::REFERENCE, arr->GetElement(i)->GetType());
-    EXPECT_EQ(indirect_objs[i], arr->GetElement(i)->GetDirect());
-    EXPECT_EQ(indirect_objs[i], arr->GetElementValue(i));
-    EXPECT_EQ(CPDF_Object::REFERENCE, arr1->GetElement(i)->GetType());
-    EXPECT_EQ(indirect_objs[i], arr1->GetElement(i)->GetDirect());
-    EXPECT_EQ(indirect_objs[i], arr1->GetElementValue(i));
+    EXPECT_EQ(CPDF_Object::REFERENCE, arr->GetObjectAt(i)->GetType());
+    EXPECT_EQ(indirect_objs[i], arr->GetObjectAt(i)->GetDirect());
+    EXPECT_EQ(indirect_objs[i], arr->GetDirectObjectAt(i));
+    EXPECT_EQ(CPDF_Object::REFERENCE, arr1->GetObjectAt(i)->GetType());
+    EXPECT_EQ(indirect_objs[i], arr1->GetObjectAt(i)->GetDirect());
+    EXPECT_EQ(indirect_objs[i], arr1->GetDirectObjectAt(i));
   }
 }
diff --git a/core/fpdfapi/fpdf_parser/cpdf_parser.cpp b/core/fpdfapi/fpdf_parser/cpdf_parser.cpp
index bebd3d62be..305401525c 100644
--- a/core/fpdfapi/fpdf_parser/cpdf_parser.cpp
+++ b/core/fpdfapi/fpdf_parser/cpdf_parser.cpp
@@ -249,7 +249,7 @@ CPDF_Parser::Error CPDF_Parser::StartParse(IFX_FileRead* pFileAccess) {
   }
   if (m_pSecurityHandler && !m_pSecurityHandler->IsMetadataEncrypted()) {
     CPDF_Reference* pMetadata =
-        ToReference(m_pDocument->GetRoot()->GetElement("Metadata"));
+        ToReference(m_pDocument->GetRoot()->GetObjectBy("Metadata"));
     if (pMetadata)
       m_pSyntax->m_MetadataObjnum = pMetadata->GetRefObjNum();
   }
@@ -262,7 +262,7 @@ CPDF_Parser::Error CPDF_Parser::SetEncryptHandler() {
   if (!m_pTrailer)
     return FORMAT_ERROR;
 
-  CPDF_Object* pEncryptObj = m_pTrailer->GetElement("Encrypt");
+  CPDF_Object* pEncryptObj = m_pTrailer->GetObjectBy("Encrypt");
   if (pEncryptObj) {
     if (CPDF_Dictionary* pEncryptDict = pEncryptObj->AsDictionary()) {
       SetEncryptDictionary(pEncryptDict);
@@ -743,9 +743,9 @@ FX_BOOL CPDF_Parser::RebuildCrossRef() {
                     if ((pDict->KeyExist("Type")) &&
                         (pDict->GetStringBy("Type") == "XRef" &&
                          pDict->KeyExist("Size"))) {
-                      CPDF_Object* pRoot = pDict->GetElement("Root");
+                      CPDF_Object* pRoot = pDict->GetObjectBy("Root");
                       if (pRoot && pRoot->GetDict() &&
-                          pRoot->GetDict()->GetElement("Pages")) {
+                          pRoot->GetDict()->GetObjectBy("Pages")) {
                         if (m_pTrailer)
                           m_pTrailer->Release();
                         m_pTrailer = ToDictionary(pDict->Clone());
@@ -809,7 +809,7 @@ FX_BOOL CPDF_Parser::RebuildCrossRef() {
                   if (CPDF_Dictionary* pTrailer =
                           pStream ? pStream->GetDict() : pObj->AsDictionary()) {
                     if (m_pTrailer) {
-                      CPDF_Object* pRoot = pTrailer->GetElement("Root");
+                      CPDF_Object* pRoot = pTrailer->GetObjectBy("Root");
                       CPDF_Reference* pRef = ToReference(pRoot);
                       if (!pRoot ||
                           (pRef && IsValidObjectNumber(pRef->GetRefObjNum()) &&
@@ -989,8 +989,8 @@ FX_BOOL CPDF_Parser::LoadCrossRefV5(FX_FILESIZE* pos, FX_BOOL bMainXRef) {
   if (pArray) {
     uint32_t nPairSize = pArray->GetCount() / 2;
     for (uint32_t i = 0; i < nPairSize; i++) {
-      CPDF_Object* pStartNumObj = pArray->GetElement(i * 2);
-      CPDF_Object* pCountObj = pArray->GetElement(i * 2 + 1);
+      CPDF_Object* pStartNumObj = pArray->GetObjectAt(i * 2);
+      CPDF_Object* pCountObj = pArray->GetObjectAt(i * 2 + 1);
 
       if (ToNumber(pStartNumObj) && ToNumber(pCountObj)) {
         int nStartNum = pStartNumObj->GetInteger();
@@ -1095,7 +1095,7 @@ FX_BOOL CPDF_Parser::LoadCrossRefV5(FX_FILESIZE* pos, FX_BOOL bMainXRef) {
 }
 
 CPDF_Array* CPDF_Parser::GetIDArray() {
-  CPDF_Object* pID = m_pTrailer ? m_pTrailer->GetElement("ID") : nullptr;
+  CPDF_Object* pID = m_pTrailer ? m_pTrailer->GetObjectBy("ID") : nullptr;
   if (!pID)
     return nullptr;
 
@@ -1108,13 +1108,13 @@ CPDF_Array* CPDF_Parser::GetIDArray() {
 
 uint32_t CPDF_Parser::GetRootObjNum() {
   CPDF_Reference* pRef =
-      ToReference(m_pTrailer ? m_pTrailer->GetElement("Root") : nullptr);
+      ToReference(m_pTrailer ? m_pTrailer->GetObjectBy("Root") : nullptr);
   return pRef ? pRef->GetRefObjNum() : 0;
 }
 
 uint32_t CPDF_Parser::GetInfoObjNum() {
   CPDF_Reference* pRef =
-      ToReference(m_pTrailer ? m_pTrailer->GetElement("Info") : nullptr);
+      ToReference(m_pTrailer ? m_pTrailer->GetObjectBy("Info") : nullptr);
   return pRef ? pRef->GetRefObjNum() : 0;
 }
 
@@ -1493,10 +1493,10 @@ FX_BOOL CPDF_Parser::IsLinearizedFile(IFX_FileRead* pFileAccess,
     return FALSE;
 
   CPDF_Dictionary* pDict = m_pLinearized->GetDict();
-  if (pDict && pDict->GetElement("Linearized")) {
+  if (pDict && pDict->GetObjectBy("Linearized")) {
     m_pSyntax->GetNextWord(nullptr);
 
-    CPDF_Object* pLen = pDict->GetElement("L");
+    CPDF_Object* pLen = pDict->GetObjectBy("L");
     if (!pLen) {
       m_pLinearized->Release();
       m_pLinearized = nullptr;
@@ -1506,10 +1506,10 @@ FX_BOOL CPDF_Parser::IsLinearizedFile(IFX_FileRead* pFileAccess,
     if (pLen->GetInteger() != (int)pFileAccess->GetSize())
       return FALSE;
 
-    if (CPDF_Number* pNo = ToNumber(pDict->GetElement("P")))
+    if (CPDF_Number* pNo = ToNumber(pDict->GetObjectBy("P")))
       m_dwFirstPageNo = pNo->GetInteger();
 
-    if (CPDF_Number* pTable = ToNumber(pDict->GetElement("T")))
+    if (CPDF_Number* pTable = ToNumber(pDict->GetObjectBy("T")))
       m_LastXRefOffset = pTable->GetInteger();
 
     return TRUE;
@@ -1591,7 +1591,7 @@ CPDF_Parser::Error CPDF_Parser::StartAsyncParse(IFX_FileRead* pFileAccess) {
 
   if (m_pSecurityHandler && m_pSecurityHandler->IsMetadataEncrypted()) {
     if (CPDF_Reference* pMetadata =
-            ToReference(m_pDocument->GetRoot()->GetElement("Metadata")))
+            ToReference(m_pDocument->GetRoot()->GetObjectBy("Metadata")))
       m_pSyntax->m_MetadataObjnum = pMetadata->GetRefObjNum();
   }
   return SUCCESS;
diff --git a/core/fpdfapi/fpdf_parser/cpdf_syntax_parser.cpp b/core/fpdfapi/fpdf_parser/cpdf_syntax_parser.cpp
index d14eeb991c..5a3db292e0 100644
--- a/core/fpdfapi/fpdf_parser/cpdf_syntax_parser.cpp
+++ b/core/fpdfapi/fpdf_parser/cpdf_syntax_parser.cpp
@@ -630,7 +630,7 @@ unsigned int CPDF_SyntaxParser::ReadEOLMarkers(FX_FILESIZE pos) {
 CPDF_Stream* CPDF_SyntaxParser::ReadStream(CPDF_Dictionary* pDict,
                                            uint32_t objnum,
                                            uint32_t gennum) {
-  CPDF_Object* pLenObj = pDict->GetElement("Length");
+  CPDF_Object* pLenObj = pDict->GetObjectBy("Length");
   FX_FILESIZE len = -1;
   CPDF_Reference* pLenObjRef = ToReference(pLenObj);
 
diff --git a/core/fpdfapi/fpdf_parser/fpdf_parser_decode.cpp b/core/fpdfapi/fpdf_parser/fpdf_parser_decode.cpp
index 346476b62b..5d9254901a 100644
--- a/core/fpdfapi/fpdf_parser/fpdf_parser_decode.cpp
+++ b/core/fpdfapi/fpdf_parser/fpdf_parser_decode.cpp
@@ -336,12 +336,12 @@ FX_BOOL PDF_DataDecode(const uint8_t* src_buf,
                        CPDF_Dictionary*& pImageParms,
                        uint32_t last_estimated_size,
                        FX_BOOL bImageAcc) {
-  CPDF_Object* pDecoder = pDict ? pDict->GetElementValue("Filter") : nullptr;
+  CPDF_Object* pDecoder = pDict ? pDict->GetDirectObjectBy("Filter") : nullptr;
   if (!pDecoder || (!pDecoder->IsArray() && !pDecoder->IsName()))
     return FALSE;
 
   CPDF_Object* pParams =
-      pDict ? pDict->GetElementValue("DecodeParms") : nullptr;
+      pDict ? pDict->GetDirectObjectBy("DecodeParms") : nullptr;
   std::vector<CFX_ByteString> DecoderList;
   CFX_ArrayTemplate<CPDF_Object*> ParamList;
   if (CPDF_Array* pDecoders = pDecoder->AsArray()) {
diff --git a/core/fpdfapi/fpdf_parser/fpdf_parser_utility.cpp b/core/fpdfapi/fpdf_parser/fpdf_parser_utility.cpp
index 5bfbfaebac..8228c497e9 100644
--- a/core/fpdfapi/fpdf_parser/fpdf_parser_utility.cpp
+++ b/core/fpdfapi/fpdf_parser/fpdf_parser_utility.cpp
@@ -82,7 +82,7 @@ int32_t GetHeaderOffset(IFX_FileRead* pFile) {
 }
 
 int32_t GetDirectInteger(CPDF_Dictionary* pDict, const CFX_ByteStringC& key) {
-  CPDF_Number* pObj = ToNumber(pDict->GetElement(key));
+  CPDF_Number* pObj = ToNumber(pDict->GetObjectBy(key));
   return pObj ? pObj->GetInteger() : 0;
 }
 
@@ -180,7 +180,7 @@ CFX_ByteTextBuf& operator<<(CFX_ByteTextBuf& buf, const CPDF_Object* pObj) {
       const CPDF_Array* p = pObj->AsArray();
       buf << "[";
       for (uint32_t i = 0; i < p->GetCount(); i++) {
-        CPDF_Object* pElement = p->GetElement(i);
+        CPDF_Object* pElement = p->GetObjectAt(i);
         if (pElement->GetObjNum()) {
           buf << " " << pElement->GetObjNum() << " 0 R";
         } else {
diff --git a/core/fpdfapi/fpdf_parser/include/cpdf_array.h b/core/fpdfapi/fpdf_parser/include/cpdf_array.h
index 3efa03e0d5..ea367785ed 100644
--- a/core/fpdfapi/fpdf_parser/include/cpdf_array.h
+++ b/core/fpdfapi/fpdf_parser/include/cpdf_array.h
@@ -25,10 +25,8 @@ class CPDF_Array : public CPDF_Object {
   const CPDF_Array* AsArray() const override;
 
   uint32_t GetCount() const { return m_Objects.GetSize(); }
-  CPDF_Object* GetElement(uint32_t index) const;
-  CPDF_Object* GetElementValue(uint32_t index) const;
-  CFX_Matrix GetMatrix();
-  CFX_FloatRect GetRect();
+  CPDF_Object* GetObjectAt(uint32_t index) const;
+  CPDF_Object* GetDirectObjectAt(uint32_t index) const;
   CFX_ByteString GetStringAt(uint32_t index) const;
   CFX_ByteStringC GetConstStringAt(uint32_t index) const;
   int GetIntegerAt(uint32_t index) const;
@@ -37,6 +35,8 @@ class CPDF_Array : public CPDF_Object {
   CPDF_Stream* GetStreamAt(uint32_t index) const;
   CPDF_Array* GetArrayAt(uint32_t index) const;
   FX_FLOAT GetFloatAt(uint32_t index) const { return GetNumberAt(index); }
+  CFX_Matrix GetMatrix();
+  CFX_FloatRect GetRect();
 
   void SetAt(uint32_t index,
              CPDF_Object* pObj,
diff --git a/core/fpdfapi/fpdf_parser/include/cpdf_dictionary.h b/core/fpdfapi/fpdf_parser/include/cpdf_dictionary.h
index 73eabf9368..82abc35c02 100644
--- a/core/fpdfapi/fpdf_parser/include/cpdf_dictionary.h
+++ b/core/fpdfapi/fpdf_parser/include/cpdf_dictionary.h
@@ -31,8 +31,8 @@ class CPDF_Dictionary : public CPDF_Object {
   const CPDF_Dictionary* AsDictionary() const override;
 
   size_t GetCount() const { return m_Map.size(); }
-  CPDF_Object* GetElement(const CFX_ByteStringC& key) const;
-  CPDF_Object* GetElementValue(const CFX_ByteStringC& key) const;
+  CPDF_Object* GetObjectBy(const CFX_ByteStringC& key) const;
+  CPDF_Object* GetDirectObjectBy(const CFX_ByteStringC& key) const;
   CFX_ByteString GetStringBy(const CFX_ByteStringC& key) const;
   CFX_ByteStringC GetConstStringBy(const CFX_ByteStringC& key) const;
   CFX_ByteString GetStringBy(const CFX_ByteStringC& key,
diff --git a/core/fpdfapi/fpdf_render/fpdf_render.cpp b/core/fpdfapi/fpdf_render/fpdf_render.cpp
index 216613cc61..52f29477a9 100644
--- a/core/fpdfapi/fpdf_render/fpdf_render.cpp
+++ b/core/fpdfapi/fpdf_render/fpdf_render.cpp
@@ -777,9 +777,10 @@ FX_BOOL CPDF_RenderStatus::ProcessTransparency(const CPDF_PageObject* pPageObj,
       pDocument = pPageObj->AsImage()->m_pImage->GetDocument();
     }
     CPDF_Dictionary* pPageResources = pPage ? pPage->m_pPageResources : NULL;
-    CPDF_Object* pCSObj =
-        pPageObj->AsImage()->m_pImage->GetStream()->GetDict()->GetElementValue(
-            "ColorSpace");
+    CPDF_Object* pCSObj = pPageObj->AsImage()
+                              ->m_pImage->GetStream()
+                              ->GetDict()
+                              ->GetDirectObjectBy("ColorSpace");
     CPDF_ColorSpace* pColorSpace =
         pDocument->LoadColorSpace(pCSObj, pPageResources);
     if (pColorSpace) {
@@ -1157,7 +1158,7 @@ CPDF_TransferFunc* CPDF_DocRenderData::GetTransferFunc(CPDF_Object* pObj) {
       return nullptr;
 
     for (uint32_t i = 0; i < 3; ++i) {
-      pFuncs[2 - i].reset(CPDF_Function::Load(pArray->GetElementValue(i)));
+      pFuncs[2 - i].reset(CPDF_Function::Load(pArray->GetDirectObjectAt(i)));
       if (!pFuncs[2 - i])
         return nullptr;
     }
diff --git a/core/fpdfapi/fpdf_render/fpdf_render_image.cpp b/core/fpdfapi/fpdf_render/fpdf_render_image.cpp
index ef452daa4e..ef2109a02f 100644
--- a/core/fpdfapi/fpdf_render/fpdf_render_image.cpp
+++ b/core/fpdfapi/fpdf_render/fpdf_render_image.cpp
@@ -408,7 +408,7 @@ FX_BOOL CPDF_ImageRenderer::StartRenderDIBSource() {
   }
   if (m_pRenderStatus->m_pDevice->GetDeviceClass() != FXDC_DISPLAY) {
     CPDF_Object* pFilters =
-        m_pImageObject->m_pImage->GetStream()->GetDict()->GetElementValue(
+        m_pImageObject->m_pImage->GetStream()->GetDict()->GetDirectObjectBy(
             "Filter");
     if (pFilters) {
       if (pFilters->IsName()) {
@@ -452,7 +452,7 @@ FX_BOOL CPDF_ImageRenderer::StartRenderDIBSource() {
     }
     CPDF_Dictionary* pPageResources = pPage ? pPage->m_pPageResources : NULL;
     CPDF_Object* pCSObj =
-        m_pImageObject->m_pImage->GetStream()->GetDict()->GetElementValue(
+        m_pImageObject->m_pImage->GetStream()->GetDict()->GetDirectObjectBy(
             "ColorSpace");
     CPDF_ColorSpace* pColorSpace =
         pDocument->LoadColorSpace(pCSObj, pPageResources);
@@ -889,7 +889,7 @@ CFX_DIBitmap* CPDF_RenderStatus::LoadSMask(CPDF_Dictionary* pSMaskDict,
     return NULL;
   }
   std::unique_ptr<CPDF_Function> pFunc;
-  CPDF_Object* pFuncObj = pSMaskDict->GetElementValue("TR");
+  CPDF_Object* pFuncObj = pSMaskDict->GetDirectObjectBy("TR");
   if (pFuncObj && (pFuncObj->IsDictionary() || pFuncObj->IsStream()))
     pFunc.reset(CPDF_Function::Load(pFuncObj));
 
@@ -919,7 +919,7 @@ CFX_DIBitmap* CPDF_RenderStatus::LoadSMask(CPDF_Dictionary* pSMaskDict,
     if (pBC) {
       CPDF_Dictionary* pDict = pGroup->GetDict();
       if (pDict && pDict->GetDictBy("Group"))
-        pCSObj = pDict->GetDictBy("Group")->GetElementValue("CS");
+        pCSObj = pDict->GetDictBy("Group")->GetDirectObjectBy("CS");
       else
         pCSObj = NULL;
       pCS = m_pContext->GetDocument()->LoadColorSpace(pCSObj);
diff --git a/core/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp b/core/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp
index 6ed50ead56..144de779e9 100644
--- a/core/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp
+++ b/core/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp
@@ -420,7 +420,7 @@ bool CPDF_DIBSource::LoadColorInfo(const CPDF_Dictionary* pFormResources,
 
   if (m_bImageMask || !m_pDict->KeyExist("ColorSpace")) {
     if (!m_bImageMask) {
-      CPDF_Object* pFilter = m_pDict->GetElementValue("Filter");
+      CPDF_Object* pFilter = m_pDict->GetDirectObjectBy("Filter");
       if (pFilter) {
         CFX_ByteString filter;
         if (pFilter->IsName()) {
@@ -442,7 +442,7 @@ bool CPDF_DIBSource::LoadColorInfo(const CPDF_Dictionary* pFormResources,
     return true;
   }
 
-  CPDF_Object* pCSObj = m_pDict->GetElementValue("ColorSpace");
+  CPDF_Object* pCSObj = m_pDict->GetDirectObjectBy("ColorSpace");
   if (!pCSObj)
     return false;
 
@@ -508,7 +508,7 @@ DIB_COMP_DATA* CPDF_DIBSource::GetDecodeAndMaskArray(FX_BOOL& bDefaultDecode,
     }
   }
   if (!m_pDict->KeyExist("SMask")) {
-    CPDF_Object* pMask = m_pDict->GetElementValue("Mask");
+    CPDF_Object* pMask = m_pDict->GetDirectObjectBy("Mask");
     if (!pMask) {
       return pCompData;
     }
@@ -727,7 +727,7 @@ CPDF_DIBSource* CPDF_DIBSource::LoadMask(uint32_t& MatteColor) {
     return LoadMaskDIB(pSoftMask);
   }
 
-  if (CPDF_Stream* pStream = ToStream(m_pDict->GetElementValue("Mask")))
+  if (CPDF_Stream* pStream = ToStream(m_pDict->GetDirectObjectBy("Mask")))
     return LoadMaskDIB(pStream);
 
   return nullptr;
@@ -752,7 +752,7 @@ int CPDF_DIBSource::StratLoadMask() {
     return StartLoadMaskDIB();
   }
 
-  m_pMaskStream = ToStream(m_pDict->GetElementValue("Mask"));
+  m_pMaskStream = ToStream(m_pDict->GetDirectObjectBy("Mask"));
   return m_pMaskStream ? StartLoadMaskDIB() : 1;
 }
 
@@ -879,7 +879,7 @@ void CPDF_DIBSource::LoadPalette() {
 
 void CPDF_DIBSource::ValidateDictParam() {
   m_bpc = m_bpc_orig;
-  CPDF_Object* pFilter = m_pDict->GetElementValue("Filter");
+  CPDF_Object* pFilter = m_pDict->GetDirectObjectBy("Filter");
   if (pFilter) {
     if (pFilter->IsName()) {
       CFX_ByteString filter = pFilter->GetString();