Fix perf regression with iframe shim.

See http://codereview.chromium.org/7654

Patch by tulrich@google.com, reviewed by pkasting

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@3609 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 6 insertions, 2 deletions

diff --git a/webkit/glue/webplugin_impl.h b/webkit/glue/webplugin_impl.h
index 33595cb..56fa705 100644
--- a/webkit/glue/webplugin_impl.h
+++ b/webkit/glue/webplugin_impl.h
@@ -67,11 +67,13 @@ class WebPluginContainer : public WebCore::Widget {
   virtual void detachFromWindow();
 
   // Returns window-relative rectangles that should clip this widget.
+  // Only rects that intersect the given bounds are relevant.
   // Use this to implement iframe shim behavior.
   //
   // TODO(tulrich): add this method to WebCore/platform/Widget.h so it
   // can be used by any platform.
-  void windowCutoutRects(WTF::Vector<WebCore::IntRect>* cutouts) const;
+  void windowCutoutRects(const WebCore::IntRect& bounds,
+                         WTF::Vector<WebCore::IntRect>* cutouts) const;
   
   // These methods are invoked from webkit when it has data to be sent to the 
   // plugin. The plugin in this case does not initiate a download for the data.
@@ -186,11 +188,13 @@ class WebPluginImpl : public WebPlugin,
   virtual void geometryChanged() const;
 
   // Returns window-relative rectangles that should clip this widget.
+  // Only rects that intersect the given bounds are relevant.
   // Use this to implement iframe shim behavior.
   //
   // TODO(tulrich): windowCutoutRects() is not in WebCore::Widgets
   // yet; need to add it.
-  void windowCutoutRects(WTF::Vector<WebCore::IntRect>* rects) const;
+  void windowCutoutRects(const WebCore::IntRect& bounds,
+                         WTF::Vector<WebCore::IntRect>* rects) const;
 
   // Override for when our window changes size or position.
   // Used to notify the plugin when the size or position changes.