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

cc/stubs/float_point_3d.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_FLOATPOINT3D_H_
 #define CC_STUBS_FLOATPOINT3D_H_
 
 #include "FloatPoint.h"
 
 #if INSIDE_WEBKIT_BUILD
@@ skipping 21 matching lines @@
     FloatPoint3D(const FloatPoint3D& point)
         : WebCore::FloatPoint3D(point)
     {
     }
 
     FloatPoint3D(WebCore::FloatPoint3D point)
         : WebCore::FloatPoint3D(point)
     {
     }
 
+    
     FloatPoint3D(WebCore::FloatPoint point)
         : WebCore::FloatPoint3D(point)
     {
     }
+
+    explicit FloatPoint3D(gfx::PointF point)
+        : WebCore::FloatPoint3D(point.x(), point.y(), 0)
+    {
+    }
 };
 
 }
 
 #endif