Add a ResourceScheduler to ResourceDispatcherHost.

content/browser/loader/resource_scheduler_filter.h

Index: content/browser/loader/resource_scheduler_filter.h
diff --git a/content/browser/loader/resource_scheduler_filter.h b/content/browser/loader/resource_scheduler_filter.h
new file mode 100644
index 0000000000000000000000000000000000000000..0bac0a534e5f2b0fc7b107bce1f917a73b89fcf3
--- /dev/null
+++ b/content/browser/loader/resource_scheduler_filter.h
@@ -0,0 +1,35 @@
+// 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.
+
+#ifndef CONTENT_BROWSER_LOADER_RESOURCE_SCHEDULER_FILTER_H_
+#define CONTENT_BROWSER_LOADER_RESOURCE_SCHEDULER_FILTER_H_
+
+#include "content/public/browser/browser_message_filter.h"
+
+namespace content {
+class ResourceScheduler;
+
+// This class listens for incoming ViewHostMsgs that are applicable to the
+// ResourceScheduler and invokes the appropriate notifications. It must be
+// inserted before the RenderMessageFilter, because the ResourceScheduler runs
+// on the IO thread and we want to see the messages before the view messages are
+// bounced to the UI thread.
+class ResourceSchedulerFilter : public BrowserMessageFilter {
+ public:
+  explicit ResourceSchedulerFilter(int child_id);
+
+  // BrowserMessageFilter methods:
+  virtual bool OnMessageReceived(const IPC::Message& message,
+                                 bool* message_was_ok) OVERRIDE;
+
+ private:
+  virtual ~ResourceSchedulerFilter();
+
+  int child_id_;
+  ResourceScheduler* resource_scheduler_;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_LOADER_RESOURCE_SCHEDULER_FILTER_H_