NOT FOR REVIEW: Adding prioritized incoming task queue to renderers

content/child/resource_dispatcher.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.
 
 // See http://dev.chromium.org/developers/design-documents/multi-process-resource-loading
 
 #ifndef CONTENT_CHILD_RESOURCE_DISPATCHER_H_
 #define CONTENT_CHILD_RESOURCE_DISPATCHER_H_
 
 #include <deque>
@@ skipping 11 matching lines @@
 #include "webkit/common/resource_type.h"
 
 struct ResourceMsg_RequestCompleteData;
 
 namespace webkit_glue {
 class ResourceLoaderBridge;
 struct ResourceResponseInfo;
 }
 
 namespace content {
+class HighPriorityResourceFilter;
 class RequestPeer;
 class ResourceDispatcherDelegate;
 struct RequestInfo;
 struct ResourceResponseHead;
 struct SiteIsolationResponseMetaData;
 
 // This class serves as a communication interface between the
 // ResourceDispatcherHost in the browser process and the ResourceLoaderBridge in
 // the child process.  It can be used from any child process.
 class CONTENT_EXPORT ResourceDispatcher : public IPC::Listener {
@@ skipping 35 matching lines @@
                          int intra_priority_value);
 
   IPC::Sender* message_sender() const { return message_sender_; }
 
   // This does not take ownership of the delegate. It is expected that the
   // delegate have a longer lifetime than the ResourceDispatcher.
   void set_delegate(ResourceDispatcherDelegate* delegate) {
     delegate_ = delegate;
   }
 
+  void set_high_priority_resource_filter(
+      HighPriorityResourceFilter* high_priority_resource_filter) {
+    high_priority_resource_filter_ = high_priority_resource_filter;
+  }
+
   // Remembers IO thread timestamp for next resource message.
   void set_io_timestamp(base::TimeTicks io_timestamp) {
     io_timestamp_ = io_timestamp;
   }
 
+  // Returns true if the message passed in is a resource related message.
+  static bool IsResourceDispatcherMessage(const IPC::Message& message);
+
  private:
   friend class ResourceDispatcherTest;
 
   typedef std::deque<IPC::Message*> MessageQueue;
   struct PendingRequestInfo {
     PendingRequestInfo();
 
     PendingRequestInfo(RequestPeer* peer,
                        ResourceType::Type resource_type,
                        int origin_pid,
@@ skipping 71 matching lines @@
 
   base::TimeTicks ToRendererCompletionTime(
       const PendingRequestInfo& request_info,
       const base::TimeTicks& browser_completion_time) const;
 
   // Returns timestamp provided by IO thread. If no timestamp is supplied,
   // then current time is returned. Saved timestamp is reset, so following
   // invocations will return current time until set_io_timestamp is called.
   base::TimeTicks ConsumeIOTimestamp();
 
-  // Returns true if the message passed in is a resource related message.
-  static bool IsResourceDispatcherMessage(const IPC::Message& message);
-
   // ViewHostMsg_Resource_DataReceived is not POD, it has a shared memory
   // handle in it that we should cleanup it up nicely. This method accepts any
   // message and determine whether the message is
   // ViewHostMsg_Resource_DataReceived and clean up the shared memory handle.
   static void ReleaseResourcesInDataMessage(const IPC::Message& message);
 
   // Iterate through a message queue and clean up the messages by calling
   // ReleaseResourcesInDataMessage and removing them from the queue. Intended
   // for use on deferred message queues that are no longer needed.
   static void ReleaseResourcesInMessageQueue(MessageQueue* queue);
 
   IPC::Sender* message_sender_;
 
   // All pending requests issued to the host
   PendingRequestList pending_requests_;
 
   base::WeakPtrFactory<ResourceDispatcher> weak_factory_;
 
   ResourceDispatcherDelegate* delegate_;
 
+  HighPriorityResourceFilter* high_priority_resource_filter_;
+
   // IO thread timestamp for ongoing IPC message.
   base::TimeTicks io_timestamp_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceDispatcher);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_RESOURCE_DISPATCHER_H_