cc: Remove CC*.h temporary includes, part 5/4.

cc/occlusion_tracker.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 "base/basictypes.h"
-#include "CCLayerIterator.h"
 #include "FloatQuad.h"
 #include "Region.h"
+#include "base/basictypes.h"
+#include "cc/layer_iterator.h"
 
 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.
@@ skipping 74 matching lines @@
     Vector<IntRect>* m_occludingScreenSpaceRects;
 
     DISALLOW_COPY_AND_ASSIGN(CCOcclusionTrackerBase);
 };
 
 typedef CCOcclusionTrackerBase<LayerChromium, RenderSurfaceChromium> CCOcclusionTracker;
 typedef CCOcclusionTrackerBase<CCLayerImpl, CCRenderSurface> CCOcclusionTrackerImpl;
 
 }
 #endif // CCOcclusionTracker_h