Merge 144236

Source/WebKit/mac/WebCoreSupport/WebFrameLoaderClient.mm

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2011, 2012 Apple 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer. 
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 1565 matching lines @@
         if (event->type() == eventNames().mousemoveEvent)
             [(WebBaseNetscapePluginView *)platformWidget() handleMouseMoved:currentNSEvent];
         else if (event->type() == eventNames().mouseoverEvent)
             [(WebBaseNetscapePluginView *)platformWidget() handleMouseEntered:currentNSEvent];
         else if (event->type() == eventNames().mouseoutEvent)
             [(WebBaseNetscapePluginView *)platformWidget() handleMouseExited:currentNSEvent];
         else if (event->type() == eventNames().contextmenuEvent)
             event->setDefaultHandled(); // We don't know if the plug-in has handled mousedown event by displaying a context menu, so we never want WebKit to show a default one.
     }
 
+    virtual void clipRectChanged()
+    {
+        // Changing the clip rect doesn't affect the view hierarchy, so the plugin must be told about the change directly.
+        [(WebBaseNetscapePluginView *)platformWidget() updateAndSetWindow];
+    }
+
 private:
     virtual void notifyWidget(WidgetNotification notification)
     {
         switch (notification) {
         case WillPaintFlattened: {
             BEGIN_BLOCK_OBJC_EXCEPTIONS;
             [(WebBaseNetscapePluginView *)platformWidget() cacheSnapshot];
             END_BLOCK_OBJC_EXCEPTIONS;
             break;
         }
@@ skipping 454 matching lines @@
 {
     [self receivedPolicyDecision:PolicyUse];
 }
 
 - (void)continue
 {
     [self receivedPolicyDecision:PolicyUse];
 }
 
 @end