Make reprioritization IPC batch rather than per-request.

content/common/resource_messages.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.
 
 // IPC messages for resource loading.
 //
 // NOTE: All messages must send an |int request_id| as their first parameter.
 
 // Multiply-included message file, hence no include guard.
 
 #include <stdint.h>
 
 #include "base/memory/shared_memory.h"
 #include "base/process/process.h"
 #include "content/common/content_param_traits_macros.h"
 #include "content/common/navigation_params.h"
+#include "content/common/resource_priority_change_info.h"
 #include "content/common/resource_request.h"
 #include "content/common/resource_request_body_impl.h"
 #include "content/common/resource_request_completion_status.h"
 #include "content/common/service_worker/service_worker_types.h"
 #include "content/public/common/common_param_traits.h"
 #include "content/public/common/resource_response.h"
 #include "ipc/ipc_message_macros.h"
-#include "net/base/request_priority.h"
 #include "net/cert/signed_certificate_timestamp.h"
 #include "net/cert/signed_certificate_timestamp_and_status.h"
 #include "net/http/http_response_info.h"
 #include "net/nqe/effective_connection_type.h"
 #include "net/url_request/redirect_info.h"
 
 #ifndef CONTENT_COMMON_RESOURCE_MESSAGES_H_
 #define CONTENT_COMMON_RESOURCE_MESSAGES_H_
 
 namespace net {
@@ skipping 221 matching lines @@
 // Parameters for a ResourceMsg_RequestComplete
 IPC_STRUCT_TRAITS_BEGIN(content::ResourceRequestCompletionStatus)
   IPC_STRUCT_TRAITS_MEMBER(error_code)
   IPC_STRUCT_TRAITS_MEMBER(was_ignored_by_handler)
   IPC_STRUCT_TRAITS_MEMBER(exists_in_cache)
   IPC_STRUCT_TRAITS_MEMBER(completion_time)
   IPC_STRUCT_TRAITS_MEMBER(encoded_data_length)
   IPC_STRUCT_TRAITS_MEMBER(encoded_body_length)
 IPC_STRUCT_TRAITS_END()
 
+// Parameters for ResourceHostMsg_DidChangePriority
+IPC_STRUCT_TRAITS_BEGIN(content::ResourcePriorityChangeInfo)
+  IPC_STRUCT_TRAITS_MEMBER(request_id)
+  IPC_STRUCT_TRAITS_MEMBER(priority)
+  IPC_STRUCT_TRAITS_MEMBER(intra_priority_value)
+IPC_STRUCT_TRAITS_END()
+
 // Resource messages sent from the browser to the renderer.
 
 // Sent when the headers are available for a resource request.
 IPC_MESSAGE_CONTROL2(ResourceMsg_ReceivedResponse,
                      int /* request_id */,
                      content::ResourceResponseHead)
 
 // Sent when cached metadata from a resource request is ready.
 IPC_MESSAGE_CONTROL2(ResourceMsg_ReceivedCachedMetadata,
                      int /* request_id */,
@@ skipping 90 matching lines @@
 
 // Sent by the renderer process to acknowledge receipt of a
 // UploadProgress message.
 IPC_MESSAGE_CONTROL1(ResourceHostMsg_UploadProgress_ACK,
                      int /* request_id */)
 
 // Sent when the renderer process deletes a resource loader.
 IPC_MESSAGE_CONTROL1(ResourceHostMsg_ReleaseDownloadedFile,
                      int /* request_id */)
 
-// Sent by the renderer when a resource request changes priority.
-IPC_MESSAGE_CONTROL3(ResourceHostMsg_DidChangePriority,
-                     int /* request_id */,
-                     net::RequestPriority,
-                     int /* intra_priority_value */)
+// Sent by the renderer when resource requests changes priority.
+IPC_MESSAGE_CONTROL1(ResourceHostMsg_DidChangePriority,
+                     std::vector<content::ResourcePriorityChangeInfo>);