cc: Cleanup class/struct forward declarations

cc/blink/web_content_layer_impl.h

 // Copyright 2014 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 CC_BLINK_WEB_CONTENT_LAYER_IMPL_H_
 #define CC_BLINK_WEB_CONTENT_LAYER_IMPL_H_
 
 #include <stddef.h>
 
 #include <memory>
 
 #include "base/macros.h"
 #include "cc/blink/cc_blink_export.h"
 #include "cc/blink/web_layer_impl.h"
 #include "cc/layers/content_layer_client.h"
 #include "third_party/WebKit/public/platform/WebContentLayer.h"
 
-namespace cc {
-class IntRect;
-class FloatRect;
-}
-
 namespace blink {
 class WebContentLayerClient;
 }
 
 namespace cc_blink {
 
 class WebContentLayerImpl : public blink::WebContentLayer,
                             public cc::ContentLayerClient {
  public:
   CC_BLINK_EXPORT explicit WebContentLayerImpl(blink::WebContentLayerClient*);
@@ skipping 14 matching lines @@
   std::unique_ptr<WebLayerImpl> layer_;
   blink::WebContentLayerClient* client_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WebContentLayerImpl);
 };
 
 }  // namespace cc_blink
 
 #endif  // CC_BLINK_WEB_CONTENT_LAYER_IMPL_H_