Basic APIs and tests for extracting attachments

1. Added API for extracting attachment properties and data.
  * Expanded the embedder test to cover all the new APIs.

Bug=pdfium:174

Change-Id: I09bffd412410e9aea45faca442d2b72eefafef4e
Reviewed-on: https://pdfium-review.googlesource.com/7790
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>

1 files changed, 15 insertions, 20 deletions

diff --git a/core/fpdfapi/page/cpdf_streamparser.cpp b/core/fpdfapi/page/cpdf_streamparser.cpp
index 37ab857816..964d600b3d 100644
--- a/core/fpdfapi/page/cpdf_streamparser.cpp
+++ b/core/fpdfapi/page/cpdf_streamparser.cpp
@@ -60,14 +60,17 @@ uint32_t DecodeAllScanlines(std::unique_ptr<CCodec_ScanlineDecoder> pDecoder,
   return pDecoder->GetSrcOffset();
 }
 
-uint32_t PDF_DecodeInlineStream(const uint8_t* src_buf,
-                                uint32_t limit,
-                                int width,
-                                int height,
-                                const CFX_ByteString& decoder,
-                                CPDF_Dictionary* pParam,
-                                uint8_t** dest_buf,
-                                uint32_t* dest_size) {
+}  // namespace
+
+// Static
+uint32_t CPDF_StreamParser::DecodeInlineStream(const uint8_t* src_buf,
+                                               uint32_t limit,
+                                               int width,
+                                               int height,
+                                               const CFX_ByteString& decoder,
+                                               CPDF_Dictionary* pParam,
+                                               uint8_t** dest_buf,
+                                               uint32_t* dest_size) {
   if (decoder == "CCITTFaxDecode" || decoder == "CCF") {
     std::unique_ptr<CCodec_ScanlineDecoder> pDecoder =
         FPDFAPI_CreateFaxDecoder(src_buf, limit, width, height, pParam);
@@ -99,22 +102,14 @@ uint32_t PDF_DecodeInlineStream(const uint8_t* src_buf,
   return 0xFFFFFFFF;
 }
 
-}  // namespace
-
 CPDF_StreamParser::CPDF_StreamParser(const uint8_t* pData, uint32_t dwSize)
-    : m_pBuf(pData),
-      m_Size(dwSize),
-      m_Pos(0),
-      m_pPool(nullptr) {}
+    : m_pBuf(pData), m_Size(dwSize), m_Pos(0), m_pPool(nullptr) {}
 
 CPDF_StreamParser::CPDF_StreamParser(
     const uint8_t* pData,
     uint32_t dwSize,
     const CFX_WeakPtr<CFX_ByteStringPool>& pPool)
-    : m_pBuf(pData),
-      m_Size(dwSize),
-      m_Pos(0),
-      m_pPool(pPool) {}
+    : m_pBuf(pData), m_Size(dwSize), m_Pos(0), m_pPool(pPool) {}
 
 CPDF_StreamParser::~CPDF_StreamParser() {}
 
@@ -193,8 +188,8 @@ std::unique_ptr<CPDF_Stream> CPDF_StreamParser::ReadInlineStream(
     uint8_t* pIgnore = nullptr;
     uint32_t dwDestSize = OrigSize;
     dwStreamSize =
-        PDF_DecodeInlineStream(m_pBuf + m_Pos, m_Size - m_Pos, width, height,
-                               Decoder, pParam, &pIgnore, &dwDestSize);
+        DecodeInlineStream(m_pBuf + m_Pos, m_Size - m_Pos, width, height,
+                           Decoder, pParam, &pIgnore, &dwDestSize);
     FX_Free(pIgnore);
     if (static_cast<int>(dwStreamSize) < 0)
       return nullptr;