content: Cleanup class/struct forward declarations

content/browser/renderer_host/pepper/pepper_renderer_connection.h

 // Copyright 2013 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 CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_RENDERER_CONNECTION_H_
 #define CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_RENDERER_CONNECTION_H_
 
 #include <memory>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "content/public/browser/browser_message_filter.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_resource.h"
 
-class GURL;
-
 namespace ppapi {
 namespace proxy {
 class ResourceMessageCallParams;
 }
 }
 
 namespace content {
 
 class BrowserPpapiHostImpl;
 struct PepperRendererInstanceData;
@@ skipping 36 matching lines @@
   // with the browser when running in-process but it means that plugin-specific
   // information (like the plugin name) won't be available.
   std::unique_ptr<BrowserPpapiHostImpl> in_process_host_;
 
   DISALLOW_COPY_AND_ASSIGN(PepperRendererConnection);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_RENDERER_CONNECTION_H_