Fix bug: AppShell: CHECK failure in PeerConnection init.

extensions/browser/extension_network_delegate.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 EXTENSIONS_BROWSER_EXTENSION_NETNETWORK_DELEGATE_H_
-#define EXTENSIONS_BROWSER_EXTENSION_NETNETWORK_DELEGATE_H_
-
-#include "extensions/browser/info_map.h"
-#include "net/base/network_delegate.h"
-
-namespace extensions {
-
-class InfoMap;
-
-class ExtensionNetworkDelegate : public net::NetworkDelegate {
- public:
-  explicit ExtensionNetworkDelegate(
-      void* browser_context, InfoMap* extension_info_map);
-  virtual ~ExtensionNetworkDelegate();
-
-  static void SetAcceptAllCookies(bool accept);
-
- private:
-  // NetworkDelegate implementation.
-  virtual int OnBeforeURLRequest(net::URLRequest* request,
-                                 const net::CompletionCallback& callback,
-                                 GURL* new_url) OVERRIDE;
-  virtual int OnBeforeSendHeaders(net::URLRequest* request,
-                                  const net::CompletionCallback& callback,
-                                  net::HttpRequestHeaders* headers) OVERRIDE;
-  virtual void OnSendHeaders(net::URLRequest* request,
-                             const net::HttpRequestHeaders& headers) OVERRIDE;
-  virtual int OnHeadersReceived(
-      net::URLRequest* request,
-      const net::CompletionCallback& callback,
-      const net::HttpResponseHeaders* original_response_headers,
-      scoped_refptr<net::HttpResponseHeaders>* override_response_headers,
-      GURL* allowed_unsafe_redirect_url) OVERRIDE;
-  virtual void OnBeforeRedirect(net::URLRequest* request,
-                                const GURL& new_location) OVERRIDE;
-  virtual void OnResponseStarted(net::URLRequest* request) OVERRIDE;
-  virtual void OnCompleted(net::URLRequest* request, bool started) OVERRIDE;
-  virtual void OnURLRequestDestroyed(net::URLRequest* request) OVERRIDE;
-  virtual void OnPACScriptError(int line_number,
-                                const base::string16& error) OVERRIDE;
-  virtual net::NetworkDelegate::AuthRequiredResponse OnAuthRequired(
-      net::URLRequest* request,
-      const net::AuthChallengeInfo& auth_info,
-      const AuthCallback& callback,
-      net::AuthCredentials* credentials) OVERRIDE;
-
-  void* browser_context_;
-  scoped_refptr<extensions::InfoMap> extension_info_map_;
-
-  DISALLOW_COPY_AND_ASSIGN(ExtensionNetworkDelegate);
-};
-
-}  // namespace extensions
-
-#endif  // EXTENSIONS_BROWSER_EXTENSION_NETNETWORK_DELEGATE_H_