cc: Remove the temporary header files that aren't prefixed with CC*

cc/occlusion_tracker_unittest.cc

 // 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 "CCOcclusionTracker.h"
 
 #include "CCLayerAnimationController.h"
 #include "CCLayerImpl.h"
 #include "CCLayerTreeHostCommon.h"
 #include "CCMathUtil.h"
 #include "CCOverdrawMetrics.h"
 #include "CCSingleThreadProxy.h"
-#include "LayerChromium.h"
 #include "Region.h"
+#include "cc/layer.h"
 #include "cc/test/animation_test_common.h"
 #include "cc/test/geometry_test_utils.h"
 #include "cc/test/occlusion_tracker_test_common.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include <public/WebFilterOperation.h>
 #include <public/WebFilterOperations.h>
 #include <public/WebTransformationMatrix.h>
 
 using namespace cc;
@@ skipping 3007 matching lines @@
         EXPECT_RECT_EQ(IntRect(IntPoint(), trackingSize), occlusion.occlusionInScreenSpace().bounds());
         EXPECT_EQ(1u, occlusion.occlusionInScreenSpace().rects().size());
         EXPECT_RECT_EQ(IntRect(IntPoint(), trackingSize), occlusion.occlusionInTargetSurface().bounds());
         EXPECT_EQ(1u, occlusion.occlusionInTargetSurface().rects().size());
     }
 };
 
 ALL_CCOCCLUSIONTRACKER_TEST(CCOcclusionTrackerTestMinimumTrackingSize);
 
 } // namespace