Remove ResourceDispatcherHost dependency on Chrome's LoginHandler and ExternalProtocolHandler.

chrome/browser/renderer_host/chrome_resource_dispatcher_host_observer.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 CHROME_BROWSER_RENDERER_HOST_CHROME_RESOURCE_DISPATCHER_HOST_OBSERVER_H_
-#define CHROME_BROWSER_RENDERER_HOST_CHROME_RESOURCE_DISPATCHER_HOST_OBSERVER_H_
-#pragma once
-
-#include "content/browser/renderer_host/resource_dispatcher_host.h"
-
-class SafeBrowsingService;
-
-namespace prerender {
-class PrerenderTracker;
-}
-
-// Implements ResourceDispatcherHost::Observer. Currently used by the Prerender
-// system to abort requests and add to the load flags when a request begins.
-class ChromeResourceDispatcherHostObserver
-    : public ResourceDispatcherHost::Observer {
- public:
-  // This class does not take ownership of the tracker but merely holds a
-  // reference to it to avoid accessing g_browser_process.
-  // Both |resource_dispatcher_host| and |prerender_tracker| must outlive
-  // |this|.
-  ChromeResourceDispatcherHostObserver(
-      ResourceDispatcherHost* resource_dispatcher_host,
-      prerender::PrerenderTracker* prerender_tracker);
-  virtual ~ChromeResourceDispatcherHostObserver();
-
-  // ResourceDispatcherHost::Observer implementation.
-  virtual bool ShouldBeginRequest(
-      int child_id, int route_id,
-      const ResourceHostMsg_Request& request_data,
-      const content::ResourceContext& resource_context,
-      const GURL& referrer) OVERRIDE;
-  virtual void RequestBeginning(ResourceHandler** handler,
-                                  net::URLRequest* request,
-                                  bool is_subresource,
-                                  int child_id,
-                                  int route_id) OVERRIDE;
-  virtual void DownloadStarting(ResourceHandler** handler,
-                                int child_id,
-                                int route_id) OVERRIDE;
-  virtual bool ShouldDeferStart(
-      net::URLRequest* request,
-      const content::ResourceContext& resource_context) OVERRIDE;
-  virtual bool AcceptSSLClientCertificateRequest(
-        net::URLRequest* request,
-        net::SSLCertRequestInfo* cert_request_info) OVERRIDE;
-  virtual bool AcceptAuthRequest(net::URLRequest* request,
-                                 net::AuthChallengeInfo* auth_info) OVERRIDE;
-
- private:
-  ResourceHandler* CreateSafeBrowsingResourceHandler(
-      ResourceHandler* handler, int child_id, int route_id, bool subresource);
-
-  ResourceDispatcherHost* resource_dispatcher_host_;
-  scoped_refptr<SafeBrowsingService> safe_browsing_;
-  prerender::PrerenderTracker* prerender_tracker_;
-
-  DISALLOW_COPY_AND_ASSIGN(ChromeResourceDispatcherHostObserver);
-};
-
-#endif  // CHROME_BROWSER_RENDERER_HOST_CHROME_RESOURCE_DISPATCHER_HOST_OBSERVER_H_