Don't set view_screen_rect_ on RequestMove ACK

third_party/WebKit/public/web/WebWidgetClient.h

 /*
  * Copyright (C) 2009 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 69 matching lines @@
     // Called when the cursor for the widget changes.
     virtual void didChangeCursor(const WebCursorInfo&) { }
 
     // Called when the widget should be closed.  WebWidget::close() should
     // be called asynchronously as a result of this notification.
     virtual void closeWidgetSoon() { }
 
     // Called to show the widget according to the given policy.
     virtual void show(WebNavigationPolicy) { }
 
-    // Called to get/set the position of the widget in screen coordinates.
+    // Called to get/set the position of the widget's window in screen
+    // coordinates. Note, the window includes any decorations such as borders,
+    // scrollbars, URL bar, tab strip, etc. if they exist.
     virtual WebRect windowRect() { return WebRect(); }
     virtual void setWindowRect(const WebRect&) { }
 
+    // Called to get the view rect in screen coordinates. This is the actual
+    // content view area, i.e. doesn't include any window decorations.
+    virtual WebRect viewRect() { return WebRect(); }
+
     // Called when a tooltip should be shown at the current cursor position.
     virtual void setToolTipText(const WebString&, WebTextDirection hint) { }
 
     // Called to get the position of the resizer rect in window coordinates.
     virtual WebRect windowResizerRect() { return WebRect(); }
 
     // Called to query information about the screen where this widget is
     // displayed.
     virtual WebScreenInfo screenInfo() { return WebScreenInfo(); }
 
@@ skipping 76 matching lines @@
     // migration is completed.
     virtual void convertWindowToViewport(WebFloatRect* rect) {}
 
 protected:
     ~WebWidgetClient() { }
 };
 
 } // namespace blink
 
 #endif