WebView: Cleanup class/struct forward declarations

android_webview/browser/net/aw_url_request_context_getter.h

 // Copyright (c) 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 ANDROID_WEBVIEW_BROWSER_NET_AW_URL_REQUEST_CONTEXT_GETTER_H_
 #define ANDROID_WEBVIEW_BROWSER_NET_AW_URL_REQUEST_CONTEXT_GETTER_H_
 
 #include <memory>
 
 #include "base/compiler_specific.h"
@@ skipping 13 matching lines @@
 class HttpAuthPreferences;
 class HttpUserAgentSettings;
 class NetLog;
 class ProxyConfigService;
 class URLRequestContext;
 class URLRequestJobFactory;
 }
 
 namespace android_webview {
 
-class AwNetworkDelegate;
-
 class AwURLRequestContextGetter : public net::URLRequestContextGetter {
  public:
   AwURLRequestContextGetter(
       const base::FilePath& cache_path,
       std::unique_ptr<net::ProxyConfigService> config_service,
       PrefService* pref_service);
 
   // net::URLRequestContextGetter implementation.
   net::URLRequestContext* GetURLRequestContext() override;
   scoped_refptr<base::SingleThreadTaskRunner> GetNetworkTaskRunner()
@@ skipping 47 matching lines @@
   // SetHandlersAndInterceptors() and the first GetURLRequestContext() call.
   content::ProtocolHandlerMap protocol_handlers_;
   content::URLRequestInterceptorScopedVector request_interceptors_;
 
   DISALLOW_COPY_AND_ASSIGN(AwURLRequestContextGetter);
 };
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_BROWSER_NET_AW_URL_REQUEST_CONTEXT_GETTER_H_