Add pixel readback to page popup

Source/web/ChromeClientImpl.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 142 matching lines @@
     // ChromeClientImpl:
     void setCursorForPlugin(const WebCursorInfo&);
     void setNewWindowNavigationPolicy(WebNavigationPolicy);
 
     virtual bool hasOpenedPopup() const OVERRIDE;
     virtual PassRefPtr<PopupMenu> createPopupMenu(LocalFrame&, PopupMenuClient*) const OVERRIDE;
     PagePopup* openPagePopup(PagePopupClient*, const IntRect&);
     void closePagePopup(PagePopup*);
     virtual void setPagePopupDriver(PagePopupDriver*) OVERRIDE;
     virtual void resetPagePopupDriver() OVERRIDE;
+    virtual PagePopupDriver* pagePopupDriver() const OVERRIDE { return m_pagePopupDriver; }
 
     virtual bool shouldRunModalDialogDuringPageDismissal(const DialogType&, const String& dialogMessage, Document::PageDismissalType) const OVERRIDE;
 
     virtual bool requestPointerLock() OVERRIDE;
     virtual void requestPointerUnlock() OVERRIDE;
 
     virtual void didAssociateFormControls(const WillBeHeapVector<RefPtrWillBeMember<Element> >&) OVERRIDE;
     virtual void didChangeValueInTextField(HTMLFormControlElement&) OVERRIDE;
     virtual void didEndEditingOnTextField(HTMLInputElement&) OVERRIDE;
     virtual void handleKeyboardEventOnTextField(HTMLInputElement&, KeyboardEvent&) OVERRIDE;
@@ skipping 21 matching lines @@
     bool m_resizable;
 
     PagePopupDriver* m_pagePopupDriver;
 };
 
 DEFINE_TYPE_CASTS(ChromeClientImpl, ChromeClient, client, client->isChromeClientImpl(), client.isChromeClientImpl());
 
 } // namespace blink
 
 #endif