Change cc files from namespace WebCore to cc

cc/CCOcclusionTracker.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 CCOcclusionTracker_h
 #define CCOcclusionTracker_h
 
 #include "CCLayerIterator.h"
 #include "FloatQuad.h"
 #include "Region.h"
 
-namespace WebCore {
+namespace cc {
 class CCOverdrawMetrics;
 class CCLayerImpl;
 class CCRenderSurface;
 class LayerChromium;
 class RenderSurfaceChromium;
 
 // This class is used to track occlusion of layers while traversing them in a front-to-back order. As each layer is visited, one of the
 // methods in this class is called to notify it about the current target surface.
 // Then, occlusion in the content space of the current layer may be queried, via methods such as occluded() and unoccludedContentRect().
 // If the current layer owns a RenderSurface, then occlusion on that RenderSurface may also be queried via surfaceOccluded() and surfaceUnoccludedContentRect().
@@ skipping 71 matching lines @@
 
     // This is used for visualizing the occlusion tracking process.
     Vector<IntRect>* m_occludingScreenSpaceRects;
 };
 
 typedef CCOcclusionTrackerBase<LayerChromium, RenderSurfaceChromium> CCOcclusionTracker;
 typedef CCOcclusionTrackerBase<CCLayerImpl, CCRenderSurface> CCOcclusionTrackerImpl;
 
 }
 #endif // CCOcclusionTracker_h