Initial CL for Downloads resumption.

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 10 matching lines @@
 #include "base/gtest_prod_util.h"
 #include "base/memory/linked_ptr.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time.h"
 #include "base/timer.h"
 #include "content/browser/download/download_resource_handler.h"
 #include "content/browser/loader/resource_loader.h"
 #include "content/browser/loader/resource_loader_delegate.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/child_process_data.h"
+#include "content/public/browser/download_id.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/browser/resource_dispatcher_host.h"
 #include "ipc/ipc_message.h"
 #include "net/cookies/canonical_cookie.h"
 #include "net/url_request/url_request.h"
 #include "webkit/glue/resource_type.h"
 
 class ResourceHandler;
 struct ResourceHostMsg_Request;
 struct ViewMsg_SwapOut_Params;
@@ skipping 32 matching lines @@
   virtual void SetDelegate(ResourceDispatcherHostDelegate* delegate) OVERRIDE;
   virtual void SetAllowCrossOriginAuthPrompt(bool value) OVERRIDE;
   virtual net::Error BeginDownload(
       scoped_ptr<net::URLRequest> request,
       bool is_content_initiated,
       ResourceContext* context,
       int child_id,
       int route_id,
       bool prefer_cache,
       scoped_ptr<DownloadSaveInfo> save_info,
+      const std::string& last_modified,
+      const std::string& etag,
+      content::DownloadId download_id,
       const DownloadStartedCallback& started_callback) OVERRIDE;
   virtual void ClearLoginDelegateForRequest(net::URLRequest* request) OVERRIDE;
   virtual void BlockRequestsForRoute(int child_id, int route_id) OVERRIDE;
   virtual void ResumeBlockedRequestsForRoute(
       int child_id, int route_id) OVERRIDE;
 
   // Puts the resource dispatcher host in an inactive state (unable to begin
   // new requests).  Cancels all pending requests.
   void Shutdown();
 
@@ skipping 101 matching lines @@
   // Indicates whether third-party sub-content can pop-up HTTP basic auth
   // dialog boxes.
   bool allow_cross_origin_auth_prompt();
 
   ResourceDispatcherHostDelegate* delegate() {
     return delegate_;
   }
 
   // Must be called after the ResourceRequestInfo has been created
   // and associated with the request.
+  // |id| should be |DownloadId()| (null) to request automatic
+  // assignment.
   scoped_ptr<ResourceHandler> CreateResourceHandlerForDownload(
       net::URLRequest* request,
       bool is_content_initiated,
       bool must_download,
+      DownloadId id,
       scoped_ptr<DownloadSaveInfo> save_info,
       const DownloadResourceHandler::OnStartedCallback& started_cb);
 
   void ClearSSLClientAuthHandlerForRequest(net::URLRequest* request);
 
  private:
   FRIEND_TEST_ALL_PREFIXES(ResourceDispatcherHostTest,
                            TestBlockedRequestsProcessDies);
   FRIEND_TEST_ALL_PREFIXES(ResourceDispatcherHostTest,
                            IncrementOutstandingRequestsMemoryCost);
@@ skipping 195 matching lines @@
   // http://crbug.com/90971 - Assists in tracking down use-after-frees on
   // shutdown.
   std::set<const ResourceContext*> active_resource_contexts_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceDispatcherHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_LOADER_RESOURCE_DISPATCHER_HOST_IMPL_H_