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, 4 insertions, 4 deletions

diff --git a/fpdfsdk/javascript/JS_Object.h b/fpdfsdk/javascript/JS_Object.h
index 49c078d927..908645ce33 100644
--- a/fpdfsdk/javascript/JS_Object.h
+++ b/fpdfsdk/javascript/JS_Object.h
@@ -46,11 +46,11 @@ class CJS_Object {
   void MakeWeak();
   void Dispose();
 
-  virtual FX_BOOL IsType(const FX_CHAR* sClassName) { return TRUE; }
-  virtual CFX_ByteString GetClassName() { return ""; }
+  virtual FX_BOOL IsType(const FX_CHAR* sClassName);
+  virtual CFX_ByteString GetClassName();
 
-  virtual void InitInstance(IJS_Runtime* pIRuntime) {}
-  virtual void ExitInstance() {}
+  virtual void InitInstance(IJS_Runtime* pIRuntime);
+  virtual void ExitInstance();
 
   v8::Local<v8::Object> ToV8Object() { return m_pV8Object.Get(m_pIsolate); }