[Downloads] Always call DM::StartDownload() for explicit downloads.

content/browser/loader/resource_dispatcher_host_impl.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.
 
 // This is the browser side of the resource dispatcher, it receives requests
 // from the child process (i.e. [Renderer, Plugin, Worker]ProcessHost), and
 // dispatches them to URLRequests. It then forwards the messages from the
 // URLRequests back to the correct process for handling.
 //
 // See http://dev.chromium.org/developers/design-documents/multi-process-resource-loading
@@ skipping 110 matching lines @@
   static void ResumeBlockedRequestsForFrameFromUI(
       RenderFrameHost* root_frame_host);
 
   // Cancels any blocked request for the frame and its subframes.
   static void CancelBlockedRequestsForFrameFromUI(
       RenderFrameHostImpl* root_frame_host);
 
   // ResourceDispatcherHost implementation:
   void SetDelegate(ResourceDispatcherHostDelegate* delegate) override;
   void SetAllowCrossOriginAuthPrompt(bool value) override;
-  DownloadInterruptReason BeginDownload(
-      scoped_ptr<net::URLRequest> request,
-      const Referrer& referrer,
-      bool is_content_initiated,
-      ResourceContext* context,
-      int child_id,
-      int render_view_route_id,
-      int render_frame_route_id,
-      bool prefer_cache,
-      bool do_not_prompt_for_login,
-      scoped_ptr<DownloadSaveInfo> save_info,
-      uint32_t download_id,
-      const DownloadStartedCallback& started_callback) override;
   void ClearLoginDelegateForRequest(net::URLRequest* request) override;
 
   // Puts the resource dispatcher host in an inactive state (unable to begin
   // new requests).  Cancels all pending requests.
   void Shutdown();
 
   // Notify the ResourceDispatcherHostImpl of a new resource context.
   void AddResourceContext(ResourceContext* context);
 
   // Notify the ResourceDispatcherHostImpl of a resource context destruction.
   void RemoveResourceContext(ResourceContext* context);
 
   // Force cancels any pending requests for the given |context|. This is
   // necessary to ensure that before |context| goes away, all requests
   // for it are dead.
   void CancelRequestsForContext(ResourceContext* context);
 
   // Returns true if the message was a resource message that was processed.
   bool OnMessageReceived(const IPC::Message& message,
                          ResourceMessageFilter* filter);
 
+  DownloadInterruptReason BeginDownload(scoped_ptr<net::URLRequest> request,
+                                        const Referrer& referrer,
+                                        bool is_content_initiated,
+                                        ResourceContext* context,
+                                        int child_id,
+                                        int render_view_route_id,
+                                        int render_frame_route_id,
+                                        bool do_not_prompt_for_login);
+
   // Initiates a save file from the browser process (as opposed to a resource
   // request from the renderer or another child process).
   void BeginSaveFile(const GURL& url,
                      const Referrer& referrer,
                      SaveItemId save_item_id,
                      SavePackageId save_package_id,
                      int child_id,
                      int render_view_route_id,
                      int render_frame_route_id,
                      ResourceContext* context);
@@ skipping 90 matching lines @@
     return delegate_;
   }
 
   // Must be called after the ResourceRequestInfo has been created
   // and associated with the request.
   // |id| should be |content::DownloadItem::kInvalidId| to request automatic
   // assignment. This is marked virtual so it can be overriden in testing.
   virtual scoped_ptr<ResourceHandler> CreateResourceHandlerForDownload(
       net::URLRequest* request,
       bool is_content_initiated,
-      bool must_download,
-      uint32_t id,
-      scoped_ptr<DownloadSaveInfo> save_info,
-      const DownloadUrlParameters::OnStartedCallback& started_cb);
+      bool must_download);
 
   // Called to determine whether the response to |request| should be intercepted
   // and handled as a stream. Streams are used to pass direct access to a
   // resource response to another application (e.g. a web page) without being
   // handled by the browser itself. If the request should be intercepted as a
   // stream, a StreamResourceHandler is returned which provides access to the
   // response. |plugin_path| is the path to the plugin which is handling the
   // URL request. This may be empty if there is no plugin handling the request.
   //
   // This function must be called after the ResourceRequestInfo has been created
@@ skipping 359 matching lines @@
   DelegateMap delegate_map_;
 
   scoped_ptr<ResourceScheduler> scheduler_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceDispatcherHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_LOADER_RESOURCE_DISPATCHER_HOST_IMPL_H_