cc: Use gfx:: Geometry types for positions, bounds, and related things.

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"
@@ skipping 20 matching lines @@
     FloatSize(WebCore::FloatSize size)
         : WebCore::FloatSize(size.width(), size.height())
     {
     }
 
     FloatSize(WebCore::IntSize size)
         : WebCore::FloatSize(size.width(), size.height())
     {
     }
 
+    explicit FloatSize(gfx::SizeF size)
+        : WebCore::FloatSize(size.width(), size.height())
+    {
+    }
+
     operator gfx::SizeF() const { return gfx::SizeF(width(), height()); }
 };
 
 }
 
 #endif