Cleanup: Remove unneeded forward declarations in webkit/plugins/.

webkit/plugins/ppapi/ppb_url_loader_impl.h

 // Copyright (c) 2011 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 WEBKIT_PLUGINS_PPAPI_PPB_URL_LOADER_IMPL_H_
 #define WEBKIT_PLUGINS_PPAPI_PPB_URL_LOADER_IMPL_H_
 
 #include <deque>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "ppapi/c/pp_completion_callback.h"
 #include "ppapi/c/trusted/ppb_url_loader_trusted.h"
 #include "ppapi/shared_impl/resource.h"
 #include "ppapi/shared_impl/url_request_info_impl.h"
 #include "ppapi/thunk/ppb_url_loader_api.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebURLLoaderClient.h"
 #include "webkit/plugins/ppapi/callbacks.h"
 #include "webkit/plugins/ppapi/ppapi_plugin_instance.h"
 
 namespace WebKit {
-class WebFrame;
 class WebURL;
 }
 
 namespace webkit {
 namespace ppapi {
 
-class PPB_URLRequestInfo_Impl;
 class PPB_URLResponseInfo_Impl;
 
 class PPB_URLLoader_Impl : public ::ppapi::Resource,
                            public ::ppapi::thunk::PPB_URLLoader_API,
                            public WebKit::WebURLLoaderClient {
  public:
   PPB_URLLoader_Impl(PP_Instance instance, bool main_document_loader);
   virtual ~PPB_URLLoader_Impl();
 
   // Resource overrides.
@@ skipping 118 matching lines @@
 
   PP_URLLoaderTrusted_StatusCallback status_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(PPB_URLLoader_Impl);
 };
 
 }  // namespace ppapi
 }  // namespace webkit
 
 #endif  // WEBKIT_PLUGINS_PPAPI_PPB_URL_LOADER_IMPL_H_