Make code compile with clang_use_chrome_plugin (part I)

This change contains files in core/fpdfapi directory. This is part
of the efforts to make PDFium code compilable by Clang chromium
style plugins.

The changes are mainly the following:
-- move inline constructor/destructor of complex class/struct out-of-line;
-- add constructor/destructor of complex class/struct if not
   explicitly defined;
-- add explicit out-of-line copy constructor when needed;
-- move inline virtual functions out-of-line;
-- Properly mark virtual functions with 'override';
-- some minor cleanups;

BUG=pdfium:469

Review-Url: https://codereview.chromium.org/2060973002

1 files changed, 7 insertions, 0 deletions

diff --git a/core/fpdfapi/fpdf_parser/cpdf_hint_tables.cpp b/core/fpdfapi/fpdf_parser/cpdf_hint_tables.cpp
index 3e08ead9ff..8f810aa888 100644
--- a/core/fpdfapi/fpdf_parser/cpdf_hint_tables.cpp
+++ b/core/fpdfapi/fpdf_parser/cpdf_hint_tables.cpp
@@ -23,6 +23,13 @@ bool CanReadFromBitStream(const CFX_BitStream* hStream,
 
 }  // namespace
 
+CPDF_HintTables::CPDF_HintTables(CPDF_DataAvail* pDataAvail,
+                                 CPDF_Dictionary* pLinearized)
+    : m_pDataAvail(pDataAvail),
+      m_pLinearizedDict(pLinearized),
+      m_nFirstPageSharedObjs(0),
+      m_szFirstPageObjOffset(0) {}
+
 CPDF_HintTables::~CPDF_HintTables() {
   m_dwDeltaNObjsArray.RemoveAll();
   m_dwNSharedObjsArray.RemoveAll();