Make code compile with clang_use_chrome_plugin (part IV)

This change mainly contains files in fpdfsdk/ 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 plus removing an unused file and splitting
cxfa_eventparam out from fxfa.h

BUG=pdfium:469

Review-Url: https://codereview.chromium.org/2062313002

1 files changed, 1 insertions, 1 deletions

diff --git a/fpdfsdk/javascript/cjs_runtime.h b/fpdfsdk/javascript/cjs_runtime.h
index 4181bd21c9..2668367c1b 100644
--- a/fpdfsdk/javascript/cjs_runtime.h
+++ b/fpdfsdk/javascript/cjs_runtime.h
@@ -42,7 +42,7 @@ class CJS_Runtime : public IJS_Runtime {
   void ReleaseContext(IJS_Context* pContext) override;
   IJS_Context* GetCurrentContext() override;
   void SetReaderDocument(CPDFSDK_Document* pReaderDoc) override;
-  CPDFSDK_Document* GetReaderDocument() override { return m_pDocument; }
+  CPDFSDK_Document* GetReaderDocument() override;
   int Execute(const CFX_WideString& script, CFX_WideString* info) override;
 
   CPDFDoc_Environment* GetReaderApp() const { return m_pApp; }