cc: Use ui/gfx geometry types for the CCRenderPass and CCDrawQuad classes.

cc/stubs/float_size.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_FLOATSIZE_H_
 #define CC_STUBS_FLOATSIZE_H_
 
 #include "IntSize.h"
 #if INSIDE_WEBKIT_BUILD
 #include "Source/WebCore/platform/graphics/FloatSize.h"
 #else
 #include "third_party/WebKit/Source/WebCore/platform/graphics/FloatSize.h"
 #endif
+#include "ui/gfx/size_f.h"
 
 namespace cc {
 class FloatSize : public WebCore::FloatSize {
 public:
     FloatSize() { }
 
     FloatSize(float width, float height)
         : WebCore::FloatSize(width, height)
     {
     }
 
     FloatSize(IntSize size)
         : WebCore::FloatSize(size.width(), size.height())
     {
     }
 
     FloatSize(WebCore::FloatSize size)
         : WebCore::FloatSize(size.width(), size.height())
     {
     }
 
     FloatSize(WebCore::IntSize size)
         : WebCore::FloatSize(size.width(), size.height())
     {
     }
+
+    operator gfx::SizeF() const { return gfx::SizeF(width(), height()); }
 };
 
 }
 
 #endif