Make reprioritization IPC batch rather than per-request.

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/callback_forward.h"
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/observer_list.h"
 #include "base/time/time.h"
 #include "content/browser/loader/global_routing_id.h"
 #include "content/browser/loader/resource_loader_delegate.h"
 #include "content/common/content_export.h"
+#include "content/common/resource_priority_change_info.h"
 #include "content/common/url_loader.mojom.h"
 #include "content/public/browser/global_request_id.h"
 #include "content/public/browser/resource_dispatcher_host.h"
 #include "content/public/browser/resource_request_info.h"
 #include "content/public/common/request_context_type.h"
 #include "content/public/common/resource_type.h"
 #include "ipc/ipc_message.h"
 #include "net/base/load_states.h"
 #include "net/base/request_priority.h"
 #include "url/gurl.h"
@@ skipping 576 matching lines @@
       ResourceContext* resource_context,
       RequestContextType fetch_request_context_type,
       AppCacheService* appcache_service,
       int child_id,
       int route_id,
       std::unique_ptr<ResourceHandler> handler);
 
   void OnCancelRequest(ResourceRequesterInfo* requester_info, int request_id);
   void OnReleaseDownloadedFile(ResourceRequesterInfo* requester_info,
                                int request_id);
-  void OnDidChangePriority(ResourceRequesterInfo* requester_info,
-                           int request_id,
-                           net::RequestPriority new_priority,
-                           int intra_priority_value);
+  void OnDidChangePriority(
+      ResourceRequesterInfo* requester_info,
+      const std::vector<ResourcePriorityChangeInfo>& priority_changes);
 
   // Creates ResourceRequestInfoImpl for a download or page save.
   // |download| should be true if the request is a file download.
   ResourceRequestInfoImpl* CreateRequestInfo(
       int child_id,
       int render_view_route_id,
       int render_frame_route_id,
       bool download,
       ResourceContext* context);
 
@@ skipping 139 matching lines @@
 
   // Points to the registered download handler intercept.
   CreateDownloadHandlerIntercept create_download_handler_intercept_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceDispatcherHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_LOADER_RESOURCE_DISPATCHER_HOST_IMPL_H_