Add pixel readback to page popup

public/web/WebPagePopup.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * 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.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 23 matching lines @@
 #include "../platform/WebCommon.h"
 #include "WebWidget.h"
 
 namespace blink {
 
 class WebWidgetClient;
 
 class WebPagePopup : public WebWidget {
 public:
     BLINK_EXPORT static WebPagePopup* create(WebWidgetClient*);
+    virtual WebPoint relativePosition() = 0;

[tkent, 2014/09/01 05:37:03]

relative to what?

[keishi, 2014/09/04 13:16:20]

Changed to screenPosition

 };
 
 } // namespace blink
 
 #endif