Change cc files from namespace WebCore to cc

cc/CCMathUtil.h

 // Copyright 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 CCMathUtil_h
 #define CCMathUtil_h
 
 #include "FloatPoint.h"
 #include "FloatPoint3D.h"
 
 namespace WebKit {
 class WebTransformationMatrix;
 }
 
-namespace WebCore {
+namespace cc {
 
 class IntRect;
 class FloatRect;
 class FloatQuad;
 
 struct HomogeneousCoordinate {
     HomogeneousCoordinate(double newX, double newY, double newZ, double newW)
         : x(newX)
         , y(newY)
         , z(newZ)
@@ skipping 27 matching lines @@
         double invW = 1.0 / w;
         return FloatPoint3D(x * invW, y * invW, z * invW);
     }
 
     double x;
     double y;
     double z;
     double w;
 };
 
-// This class contains math helper functionality that does not belong in WebCore.
-// It is possible that this functionality should be migrated to WebCore eventually.
 class CCMathUtil {
 public:
 
     // Background: WebTransformationMatrix code in WebCore does not do the right thing in
     // mapRect / mapQuad / projectQuad when there is a perspective projection that causes
     // one of the transformed vertices to go to w < 0. In those cases, it is necessary to
     // perform clipping in homogeneous coordinates, after applying the transform, before
     // dividing-by-w to convert to cartesian coordinates.
     //
     // These functions return the axis-aligned rect that encloses the correctly clipped,
@@ skipping 22 matching lines @@
     static void flattenTransformTo2d(WebKit::WebTransformationMatrix&);
 
     // Returns the smallest angle between the given two vectors in degrees. Neither vector is
     // assumed to be normalized.
     static float smallestAngleBetweenVectors(const FloatSize&, const FloatSize&);
 
     // Projects the |source| vector onto |destination|. Neither vector is assumed to be normalized.
     static FloatSize projectVector(const FloatSize& source, const FloatSize& destination);
 };
 
-} // namespace WebCore
+} // namespace cc
 
 #endif // #define CCMathUtil_h