10 files changed, 205 insertions, 9 deletions
diff --git a/core/src/fpdfapi/fpdf_font/fpdf_font.cpp b/core/src/fpdfapi/fpdf_font/fpdf_font.cpp
index a9deba665c..a64b5010c4 100644
--- a/core/src/fpdfapi/fpdf_font/fpdf_font.cpp
+++ b/core/src/fpdfapi/fpdf_font/fpdf_font.cpp
@@ -173,6 +173,74 @@ CPDF_Font::~CPDF_Font() {
   }
 }
 
+bool CPDF_Font::IsType1Font() const {
+  return false;
+}
+
+bool CPDF_Font::IsTrueTypeFont() const {
+  return false;
+}
+
+bool CPDF_Font::IsType3Font() const {
+  return false;
+}
+
+bool CPDF_Font::IsCIDFont() const {
+  return false;
+}
+
+const CPDF_Type1Font* CPDF_Font::AsType1Font() const {
+  return nullptr;
+}
+
+CPDF_Type1Font* CPDF_Font::AsType1Font() {
+  return nullptr;
+}
+
+const CPDF_TrueTypeFont* CPDF_Font::AsTrueTypeFont() const {
+  return nullptr;
+}
+
+CPDF_TrueTypeFont* CPDF_Font::AsTrueTypeFont() {
+  return nullptr;
+}
+
+const CPDF_Type3Font* CPDF_Font::AsType3Font() const {
+  return nullptr;
+}
+
+CPDF_Type3Font* CPDF_Font::AsType3Font() {
+  return nullptr;
+}
+
+const CPDF_CIDFont* CPDF_Font::AsCIDFont() const {
+  return nullptr;
+}
+
+CPDF_CIDFont* CPDF_Font::AsCIDFont() {
+  return nullptr;
+}
+
+FX_BOOL CPDF_Font::IsUnicodeCompatible() const {
+  return FALSE;
+}
+
+int CPDF_Font::CountChar(const FX_CHAR* pString, int size) const {
+  return size;
+}
+
+int CPDF_Font::GetCharSize(FX_DWORD charcode) const {
+  return 1;
+}
+
+int CPDF_Font::GlyphFromCharCode(FX_DWORD charcode, FX_BOOL* pVertGlyph) {
+  ASSERT(false);
+}
+
+int CPDF_Font::GlyphFromCharCodeExt(FX_DWORD charcode) {
+  return GlyphFromCharCode(charcode);
+}
+
 FX_BOOL CPDF_Font::IsVertWriting() const {
   FX_BOOL bVertWriting = FALSE;
   const CPDF_CIDFont* pCIDFont = AsCIDFont();
@@ -962,6 +1030,18 @@ FX_DWORD CPDF_SimpleFont::CharCodeFromUnicode(FX_WCHAR unicode) const {
 
 CPDF_Type1Font::CPDF_Type1Font() : m_Base14Font(-1) {}
 
+bool CPDF_Type1Font::IsType1Font() const {
+  return true;
+}
+
+const CPDF_Type1Font* CPDF_Type1Font::AsType1Font() const {
+  return this;
+}
+
+CPDF_Type1Font* CPDF_Type1Font::AsType1Font() {
+  return this;
+}
+
 FX_BOOL CPDF_Type1Font::Load() {
   m_Base14Font = PDF_GetStandardFontName(&m_BaseFont);
   if (m_Base14Font >= 0) {
@@ -1360,6 +1440,18 @@ CPDF_Object* CPDF_FontEncoding::Realize() {
 
 CPDF_TrueTypeFont::CPDF_TrueTypeFont() {}
 
+bool CPDF_TrueTypeFont::IsTrueTypeFont() const {
+  return true;
+}
+
+const CPDF_TrueTypeFont* CPDF_TrueTypeFont::AsTrueTypeFont() const {
+  return this;
+}
+
+CPDF_TrueTypeFont* CPDF_TrueTypeFont::AsTrueTypeFont() {
+  return this;
+}
+
 FX_BOOL CPDF_TrueTypeFont::Load() {
   return LoadCommon();
 }
@@ -1572,6 +1664,18 @@ CPDF_Type3Font::~CPDF_Type3Font() {
     delete it.second;
 }
 
+bool CPDF_Type3Font::IsType3Font() const {
+  return true;
+}
+
+const CPDF_Type3Font* CPDF_Type3Font::AsType3Font() const {
+  return this;
+}
+
+CPDF_Type3Font* CPDF_Type3Font::AsType3Font() {
+  return this;
+}
+
 FX_BOOL CPDF_Type3Font::Load() {
   m_pFontResources = m_pFontDict->GetDictBy("Resources");
   CPDF_Array* pMatrix = m_pFontDict->GetArrayBy("FontMatrix");
diff --git a/core/src/fpdfapi/fpdf_font/fpdf_font_cid.cpp b/core/src/fpdfapi/fpdf_font/fpdf_font_cid.cpp
index 7c85b8213d..38406394c4 100644
--- a/core/src/fpdfapi/fpdf_font/fpdf_font_cid.cpp
+++ b/core/src/fpdfapi/fpdf_font/fpdf_font_cid.cpp
@@ -1068,6 +1068,18 @@ CPDF_CIDFont::~CPDF_CIDFont() {
   delete m_pTTGSUBTable;
 }
 
+bool CPDF_CIDFont::IsCIDFont() const {
+  return true;
+}
+
+const CPDF_CIDFont* CPDF_CIDFont::AsCIDFont() const {
+  return this;
+}
+
+CPDF_CIDFont* CPDF_CIDFont::AsCIDFont() {
+  return this;
+}
+
 FX_WORD CPDF_CIDFont::CIDFromCharCode(FX_DWORD charcode) const {
   if (!m_pCMap) {
     return (FX_WORD)charcode;
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_encrypt.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_encrypt.cpp
index 799e748761..95907ae8fd 100644
--- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_encrypt.cpp
+++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_encrypt.cpp
@@ -56,6 +56,7 @@ void CalcEncryptKey(CPDF_Dictionary* pEncrypt,
   FXSYS_memset(key, 0, keylen);
   FXSYS_memcpy(key, digest, copy_len);
 }
+
 CPDF_CryptoHandler* CPDF_StandardSecurityHandler::CreateCryptoHandler() {
   return new CPDF_StandardCryptoHandler;
 }
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp
index 737bbe49be..e18775e54b 100644
--- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp
+++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp
@@ -4144,7 +4144,7 @@ FX_BOOL CPDF_DataAvail::CheckPageNode(CPDF_PageNode& pageNodes,
       continue;
 
     switch (pNode->m_type) {
-      case PDF_PAGENODE_UNKOWN:
+      case PDF_PAGENODE_UNKNOWN:
         if (!CheckUnkownPageNode(pNode->m_dwPageNo, pNode, pHints)) {
           return FALSE;
         }
@@ -4586,6 +4586,8 @@ IPDF_DataAvail::DocFormStatus CPDF_DataAvail::IsFormAvail(
   return FormAvailable;
 }
 
+CPDF_PageNode::CPDF_PageNode() : m_type(PDF_PAGENODE_UNKNOWN) {}
+
 CPDF_PageNode::~CPDF_PageNode() {
   for (int32_t i = 0; i < m_childNode.GetSize(); ++i)
     delete m_childNode[i];
diff --git a/core/src/fxcrt/fx_basic_buffer.cpp b/core/src/fxcrt/fx_basic_buffer.cpp
index 9578653019..f623d995c7 100644
--- a/core/src/fxcrt/fx_basic_buffer.cpp
+++ b/core/src/fxcrt/fx_basic_buffer.cpp
@@ -19,6 +19,8 @@ CFX_BinaryBuf::CFX_BinaryBuf(FX_STRSIZE size)
   m_pBuffer.reset(FX_Alloc(uint8_t, size));
 }
 
+CFX_BinaryBuf::~CFX_BinaryBuf() {}
+
 void CFX_BinaryBuf::Delete(int start_index, int count) {
   if (!m_pBuffer || start_index < 0 || count < 0 || count > m_DataSize ||
       start_index > m_DataSize - count) {
@@ -364,6 +366,8 @@ FX_DWORD CFX_BitStream::GetBits(FX_DWORD nBits) {
 CFX_FileBufferArchive::CFX_FileBufferArchive()
     : m_Length(0), m_pFile(nullptr) {}
 
+CFX_FileBufferArchive::~CFX_FileBufferArchive() {}
+
 void CFX_FileBufferArchive::Clear() {
   m_Length = 0;
   m_pBuffer.reset();
diff --git a/core/src/fxcrt/fx_basic_util.cpp b/core/src/fxcrt/fx_basic_util.cpp
index 7228af1a8a..2422212d59 100644
--- a/core/src/fxcrt/fx_basic_util.cpp
+++ b/core/src/fxcrt/fx_basic_util.cpp
@@ -16,6 +16,8 @@
 #include <direct.h>
 #endif
 
+CFX_PrivateData::CFX_PrivateData() {}
+
 CFX_PrivateData::~CFX_PrivateData() {
   ClearAll();
 }
diff --git a/core/src/fxcrt/fxcrt_stream.cpp b/core/src/fxcrt/fxcrt_stream.cpp
new file mode 100644
index 0000000000..2f50153e9e
--- /dev/null
+++ b/core/src/fxcrt/fxcrt_stream.cpp
@@ -0,0 +1,27 @@
+// Copyright 2016 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "core/include/fxcrt/fx_stream.h"
+
+FX_BOOL IFX_FileWrite::WriteBlock(const void* pData, size_t size) {
+  return WriteBlock(pData, GetSize(), size);
+}
+
+FX_BOOL IFX_FileRead::IsEOF() {
+  return FALSE;
+}
+
+FX_FILESIZE IFX_FileRead::GetPosition() {
+  return 0;
+}
+
+size_t IFX_FileRead::ReadBlock(void* buffer, size_t size) {
+  return 0;
+}
+
+FX_BOOL IFX_FileStream::WriteBlock(const void* buffer, size_t size) {
+  return WriteBlock(buffer, GetSize(), size);
+}
diff --git a/core/src/fxge/dib/fx_dib_main.cpp b/core/src/fxge/dib/fx_dib_main.cpp
index 4922373ec0..ab4c170af5 100644
--- a/core/src/fxge/dib/fx_dib_main.cpp
+++ b/core/src/fxge/dib/fx_dib_main.cpp
@@ -42,6 +42,7 @@ FX_DWORD ArgbEncode(int a, FX_COLORREF rgb) {
   return FXARGB_MAKE(a, FXSYS_GetRValue(rgb), FXSYS_GetGValue(rgb),
                      FXSYS_GetBValue(rgb));
 }
+
 CFX_DIBSource::CFX_DIBSource() {
   m_bpp = 0;
   m_AlphaFlag = 0;
@@ -50,15 +51,26 @@ CFX_DIBSource::CFX_DIBSource() {
   m_pPalette = NULL;
   m_pAlphaMask = NULL;
 }
+
 CFX_DIBSource::~CFX_DIBSource() {
   FX_Free(m_pPalette);
   delete m_pAlphaMask;
 }
+
+uint8_t* CFX_DIBSource::GetBuffer() const {
+  return NULL;
+}
+
+FX_BOOL CFX_DIBSource::SkipToScanline(int line, IFX_Pause* pPause) const {
+  return FALSE;
+}
+
 CFX_DIBitmap::CFX_DIBitmap() {
   m_bExtBuf = FALSE;
   m_pBuffer = NULL;
   m_pPalette = NULL;
 }
+
 #define _MAX_OOM_LIMIT_ 12000000
 FX_BOOL CFX_DIBitmap::Create(int width,
                              int height,
@@ -113,6 +125,7 @@ FX_BOOL CFX_DIBitmap::Create(int width,
   }
   return TRUE;
 }
+
 FX_BOOL CFX_DIBitmap::Copy(const CFX_DIBSource* pSrc) {
   if (m_pBuffer) {
     return FALSE;
@@ -127,24 +140,34 @@ FX_BOOL CFX_DIBitmap::Copy(const CFX_DIBSource* pSrc) {
   }
   return TRUE;
 }
+
 CFX_DIBitmap::~CFX_DIBitmap() {
-  if (!m_bExtBuf) {
+  if (!m_bExtBuf)
     FX_Free(m_pBuffer);
-  }
-  m_pBuffer = NULL;
+
+  m_pBuffer = nullptr;
 }
+
+uint8_t* CFX_DIBitmap::GetBuffer() const {
+  return m_pBuffer;
+}
+
+const uint8_t* CFX_DIBitmap::GetScanline(int line) const {
+  return m_pBuffer ? m_pBuffer + line * m_Pitch : nullptr;
+}
+
 void CFX_DIBitmap::TakeOver(CFX_DIBitmap* pSrcBitmap) {
-  if (!m_bExtBuf) {
+  if (!m_bExtBuf)
     FX_Free(m_pBuffer);
-  }
+
   FX_Free(m_pPalette);
   delete m_pAlphaMask;
   m_pBuffer = pSrcBitmap->m_pBuffer;
   m_pPalette = pSrcBitmap->m_pPalette;
   m_pAlphaMask = pSrcBitmap->m_pAlphaMask;
-  pSrcBitmap->m_pBuffer = NULL;
-  pSrcBitmap->m_pPalette = NULL;
-  pSrcBitmap->m_pAlphaMask = NULL;
+  pSrcBitmap->m_pBuffer = nullptr;
+  pSrcBitmap->m_pPalette = nullptr;
+  pSrcBitmap->m_pAlphaMask = nullptr;
   m_bpp = pSrcBitmap->m_bpp;
   m_bExtBuf = pSrcBitmap->m_bExtBuf;
   m_AlphaFlag = pSrcBitmap->m_AlphaFlag;
@@ -152,6 +175,7 @@ void CFX_DIBitmap::TakeOver(CFX_DIBitmap* pSrcBitmap) {
   m_Height = pSrcBitmap->m_Height;
   m_Pitch = pSrcBitmap->m_Pitch;
 }
+
 CFX_DIBitmap* CFX_DIBSource::Clone(const FX_RECT* pClip) const {
   FX_RECT rect(0, 0, m_Width, m_Height);
   if (pClip) {
diff --git a/core/src/fxge/ge/fx_ge_fontmap.cpp b/core/src/fxge/ge/fx_ge_fontmap.cpp
index 890de616d1..cd46148b7f 100644
--- a/core/src/fxge/ge/fx_ge_fontmap.cpp
+++ b/core/src/fxge/ge/fx_ge_fontmap.cpp
@@ -1281,8 +1281,23 @@ FXFT_Face CFX_FontMapper::FindSubstFontByUnicode(FX_DWORD dwUnicode,
   m_pFontInfo->DeleteFont(hFont);
   return face;
 }
+
+void* IFX_SystemFontInfo::MapFontByUnicode(FX_DWORD dwUnicode,
+                                           int weight,
+                                           FX_BOOL bItalic,
+                                           int pitch_family) {
+  return nullptr;
+}
 #endif  // PDF_ENABLE_XFA
 
+int IFX_SystemFontInfo::GetFaceIndex(void* hFont) {
+  return 0;
+}
+
+void* IFX_SystemFontInfo::RetainFont(void* hFont) {
+  return NULL;
+}
+
 int CFX_FontMapper::GetFaceSize() const {
   return pdfium::CollectionSize<int>(m_FaceArray);
 }
@@ -1308,11 +1323,13 @@ unsigned long _FTStreamRead(FXFT_Stream stream,
                             unsigned long count);
 void _FTStreamClose(FXFT_Stream stream);
 };
+
 #if _FX_OS_ == _FX_ANDROID_
 IFX_SystemFontInfo* IFX_SystemFontInfo::CreateDefault(const char** pUnused) {
   return NULL;
 }
 #endif
+
 CFX_FolderFontInfo::CFX_FolderFontInfo() {}
 CFX_FolderFontInfo::~CFX_FolderFontInfo() {
   for (const auto& pair : m_FontList) {
diff --git a/core/src/fxge/ge/fx_ge_text.cpp b/core/src/fxge/ge/fx_ge_text.cpp
index 8d54363d14..8fb03d86eb 100644
--- a/core/src/fxge/ge/fx_ge_text.cpp
+++ b/core/src/fxge/ge/fx_ge_text.cpp
@@ -1167,6 +1167,9 @@ FX_BOOL CFX_RenderDevice::DrawTextPath(int nChars,
   }
   return TRUE;
 }
+
+CFX_FontCache::CFX_FontCache() {}
+
 CFX_FontCache::~CFX_FontCache() {
   FreeCache(TRUE);
 }