[Mojo-Loading] Implement URLLoader::SetPriority

content/child/resource_dispatcher.cc

 // 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.
 
 // See http://dev.chromium.org/developers/design-documents/multi-process-resource-loading
 
 #include "content/child/resource_dispatcher.h"
 
 #include <utility>
 
@@ skipping 490 matching lines @@
 
     main_thread_task_runner_->PostTask(
         FROM_HERE, base::Bind(&ResourceDispatcher::FlushDeferredMessages,
                               weak_factory_.GetWeakPtr(), request_id));
   }
 }
 
 void ResourceDispatcher::DidChangePriority(int request_id,
                                            net::RequestPriority new_priority,
                                            int intra_priority_value) {
-  DCHECK(base::ContainsKey(pending_requests_, request_id));
-  message_sender_->Send(new ResourceHostMsg_DidChangePriority(
-      request_id, new_priority, intra_priority_value));
+  PendingRequestInfo* request_info = GetPendingRequestInfo(request_id);
+  DCHECK(request_info);
+  if (request_info->url_loader) {
+    request_info->url_loader->SetPriority(new_priority, intra_priority_value);
+  } else {
+    message_sender_->Send(new ResourceHostMsg_DidChangePriority(
+        request_id, new_priority, intra_priority_value));
+  }
 }
 
 void ResourceDispatcher::OnTransferSizeUpdated(int request_id,
                                                int32_t transfer_size_diff) {
   DCHECK_GT(transfer_size_diff, 0);
   PendingRequestInfo* request_info = GetPendingRequestInfo(request_id);
   if (!request_info)
     return;
 
   // TODO(yhirano): Consider using int64_t in
@@ skipping 293 matching lines @@
     delete message;
   }
 }
 
 void ResourceDispatcher::SetResourceSchedulingFilter(
     scoped_refptr<ResourceSchedulingFilter> resource_scheduling_filter) {
   resource_scheduling_filter_ = resource_scheduling_filter;
 }
 
 }  // namespace content