Change cc files from namespace WebCore to cc

cc/CCCheckerboardDrawQuad.cpp

 // 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.
 
 #include "config.h"
 
 #include "CCCheckerboardDrawQuad.h"
 
-namespace WebCore {
+namespace cc {
 
 PassOwnPtr<CCCheckerboardDrawQuad> CCCheckerboardDrawQuad::create(const CCSharedQuadState* sharedQuadState, const IntRect& quadRect)
 {
     return adoptPtr(new CCCheckerboardDrawQuad(sharedQuadState, quadRect));
 }
 
 CCCheckerboardDrawQuad::CCCheckerboardDrawQuad(const CCSharedQuadState* sharedQuadState, const IntRect& quadRect)
     : CCDrawQuad(sharedQuadState, CCDrawQuad::Checkerboard, quadRect)
 {
 }
 
 const CCCheckerboardDrawQuad* CCCheckerboardDrawQuad::materialCast(const CCDrawQuad* quad)
 {
     ASSERT(quad->material() == CCDrawQuad::Checkerboard);
     return static_cast<const CCCheckerboardDrawQuad*>(quad);
 }
 
 
 }