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, 0 deletions

diff --git a/fpdfsdk/include/fsdk_actionhandler.h b/fpdfsdk/include/fsdk_actionhandler.h
index bf2ebd3eba..45ff5571a5 100644
--- a/fpdfsdk/include/fsdk_actionhandler.h
+++ b/fpdfsdk/include/fsdk_actionhandler.h
@@ -33,6 +33,7 @@ class CPDFSDK_FormActionHandler {
 class CPDFSDK_ActionHandler {
  public:
   CPDFSDK_ActionHandler();
+  ~CPDFSDK_ActionHandler();
 
   FX_BOOL DoAction_DocOpen(const CPDF_Action& action,
                            CPDFSDK_Document* pDocument);