CompositingReasonFinder should use a virtual function instead of a nest of branches

Source/core/rendering/compositing/CompositingTriggers.h

Index: Source/core/rendering/compositing/CompositingTriggers.h
diff --git a/Source/platform/PopupMenu.h b/Source/core/rendering/compositing/CompositingTriggers.h
similarity index 61%
copy from Source/platform/PopupMenu.h
copy to Source/core/rendering/compositing/CompositingTriggers.h
index f7f822ab33c0ce64d4591c204b33becbb408570c..1e12a819cf2d6a5bfb7af0a4c9f8e07275edf431 100644
--- a/Source/platform/PopupMenu.h
+++ b/Source/core/rendering/compositing/CompositingTriggers.h
@@ -1,5 +1,7 @@
 /*
+ * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple, Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+ * Copyright (C) 2012 Samsung Electronics. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ -15,31 +17,26 @@
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
- *
  */
 
-#ifndef PopupMenu_h
-#define PopupMenu_h
-
-#include "platform/PlatformExport.h"
-#include "wtf/RefCounted.h"
+#ifndef CompositingTriggers_h
+#define CompositingTriggers_h
 
 namespace WebCore {
 
-class FloatQuad;
-class FrameView;
-class IntRect;
-class IntSize;
-
-class PopupMenu : public RefCounted<PopupMenu> {
-public:
-    virtual ~PopupMenu() { }
-    virtual void show(const FloatQuad& controlPosition, const IntSize& controlSize, int index) = 0;
-    virtual void hide() = 0;
-    virtual void updateFromElement() = 0;
-    virtual void disconnectClient() = 0;
+enum CompositingTrigger {
+    ThreeDTransformTrigger = 1 << 0,
+    VideoTrigger = 1 << 1,
+    PluginTrigger = 1 << 2,
+    CanvasTrigger = 1 << 3,
+    AnimationTrigger = 1 << 4,
+    FilterTrigger = 1 << 5,
+    ScrollableInnerFrameTrigger = 1 << 6,
+    AllCompositingTriggers = 0xFFFFFFFF
 };
 
+typedef unsigned CompositingTriggerFlags;
+
 }
 
-#endif // PopupMenu_h
+#endif