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, 12 insertions, 0 deletions

diff --git a/fpdfsdk/javascript/JS_Object.cpp b/fpdfsdk/javascript/JS_Object.cpp
index 6339bb7359..0d190a7fa4 100644
--- a/fpdfsdk/javascript/JS_Object.cpp
+++ b/fpdfsdk/javascript/JS_Object.cpp
@@ -75,6 +75,18 @@ void CJS_Object::Dispose() {
   m_pV8Object.Reset();
 }
 
+FX_BOOL CJS_Object::IsType(const FX_CHAR* sClassName) {
+  return TRUE;
+}
+
+CFX_ByteString CJS_Object::GetClassName() {
+  return "";
+}
+
+void CJS_Object::InitInstance(IJS_Runtime* pIRuntime) {}
+
+void CJS_Object::ExitInstance() {}
+
 int CJS_Object::MsgBox(CPDFDoc_Environment* pApp,
                        const FX_WCHAR* swMsg,
                        const FX_WCHAR* swTitle,