Schedule ResourceDispatch messages via a Filter

content/child/resource_scheduling_filter.cc

+// Copyright (c) 2014 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.
+
+#include "content/child/resource_scheduling_filter.h"
+
+#include "base/bind.h"
+#include "base/location.h"
+#include "content/child/resource_dispatcher.h"
+#include "ipc/ipc_message.h"
+#include "ipc/ipc_message_start.h"
+
+namespace content {
+
+ResourceSchedulingFilter::ResourceSchedulingFilter(
+    const scoped_refptr<base::SingleThreadTaskRunner>& main_thread_task_runner,
+    ResourceDispatcher* resource_dispatcher)
+    : main_thread_task_runner_(main_thread_task_runner),
+      resource_dispatcher_(resource_dispatcher),
+      weak_ptr_factory_(this) {
+  DCHECK(main_thread_task_runner_.get());
+  DCHECK(resource_dispatcher_);
+}
+
+ResourceSchedulingFilter::~ResourceSchedulingFilter() {
+}
+
+bool ResourceSchedulingFilter::OnMessageReceived(const IPC::Message& message) {
+  main_thread_task_runner_->PostTask(
+      FROM_HERE,
+      base::Bind(&ResourceSchedulingFilter::DispatchMessage,
+                 weak_ptr_factory_.GetWeakPtr(),
+                 message));
+  return true;
+}
+
+bool ResourceSchedulingFilter::GetSupportedMessageClasses(
+    std::vector<uint32>* supported_message_classes) const {
+  supported_message_classes->push_back(ResourceMsgStart);
+  return true;
+}
+
+void ResourceSchedulingFilter::DispatchMessage(const IPC::Message& message) {
+  resource_dispatcher_->OnMessageReceived(message);
+}
+
+}  // namespace content