[cc] Rename all cc/ filenames to Chromium style

cc/SolidColorLayerChromium.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 SolidColorLayerChromium_h
-#define SolidColorLayerChromium_h
-
-#if USE(ACCELERATED_COMPOSITING)
-
-#include "LayerChromium.h"
-
-namespace cc {
-
-// A Layer that renders a solid color. The color is specified by using
-// setBackgroundColor() on the base class.
-class SolidColorLayerChromium : public LayerChromium {
-public:
-    static scoped_refptr<SolidColorLayerChromium> create();
-
-    virtual scoped_ptr<CCLayerImpl> createCCLayerImpl() OVERRIDE;
-
-protected:
-    SolidColorLayerChromium();
-
-private:
-    virtual ~SolidColorLayerChromium();
-};
-
-}
-#endif // USE(ACCELERATED_COMPOSITING)
-
-#endif
+// Temporary forwarding header
+#include "cc/solid_color_layer.h"