cc: Remove WebCore dependecies from CCRenderPass and CCDrawQuad classes.

cc/stubs/IntSize.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_STUBS_INTSIZE_H_
 #define CC_STUBS_INTSIZE_H_
 
 #if INSIDE_WEBKIT_BUILD
 #include "Source/WebCore/platform/graphics/IntSize.h"
 #else
 #include "third_party/WebKit/Source/WebCore/platform/graphics/IntSize.h"
 #endif
+#include <public/WebSize.h>
 
 namespace cc {
 
 class IntSize : public WebCore::IntSize {
 public:
     IntSize() { }
 
     IntSize(int width, int height)
         : WebCore::IntSize(width, height)
     {
     }
 
     IntSize(WebCore::IntSize size)
         : WebCore::IntSize(size.width(), size.height())
     {
 
     }
+
+    IntSize(WebKit::WebSize point)
+        : WebCore::IntSize(point.width, point.height)
+    {
+    }
+
+    operator WebKit::WebSize() const
+    {
+        return WebKit::WebSize(width(), height());
+    }
 };
 
 }
 
 #endif