Change cc files from namespace WebCore to cc

cc/CCMathUtilTest.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 "CCMathUtil.h"
 
 #include "CCGeometryTestUtils.h"
 #include "FloatRect.h"
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 #include <public/WebTransformationMatrix.h>
 
-using namespace WebCore;
+using namespace cc;
 using WebKit::WebTransformationMatrix;
 
 namespace {
 
 TEST(CCMathUtilTest, verifyBackfaceVisibilityBasicCases)
 {
     WebTransformationMatrix transform;
 
     transform.makeIdentity();
     EXPECT_FALSE(transform.isBackFaceVisible());
@@ skipping 147 matching lines @@
 
     // Finally check than an arbitrary vector projected to another one gives a vector parallel to
     // the second vector.
     FloatSize targetVector(0.5, 0.2f);
     FloatSize projectedVector = CCMathUtil::projectVector(testVector, targetVector);
     EXPECT_EQ(projectedVector.width() / targetVector.width(),
               projectedVector.height() / targetVector.height());
 }
 
 } // namespace