Move blink scheduler implementation into a component

content/renderer/input/input_handler_manager.h

 // Copyright 2013 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_RENDERER_INPUT_INPUT_HANDLER_MANAGER_H_
 #define CONTENT_RENDERER_INPUT_INPUT_HANDLER_MANAGER_H_
 
 #include "base/containers/scoped_ptr_hash_map.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "content/common/input/input_event_ack_state.h"
 #include "content/renderer/render_view_impl.h"
 
 namespace base {
 class MessageLoopProxy;
 }
 
 namespace cc {
 class InputHandler;
 struct InputHandlerScrollResult;
 }
 
 namespace blink {
 class WebInputEvent;
 class WebMouseWheelEvent;
 }
 
+namespace scheduler {
+class RendererScheduler;
+}
+
 namespace content {
 
 class InputHandlerWrapper;
 class InputHandlerManagerClient;
 struct DidOverscrollParams;
-class RendererScheduler;
 
 // InputHandlerManager class manages InputHandlerProxy instances for
 // the WebViews in this renderer.
 class InputHandlerManager {
  public:
   // |message_loop_proxy| is the MessageLoopProxy of the compositor thread. The
   // underlying MessageLoop and supplied |client| and the |renderer_scheduler|
   // must outlive this object. The RendererScheduler needs to know when input
   // events and fling animations occur, which is why it's passed in here.
   InputHandlerManager(
       const scoped_refptr<base::MessageLoopProxy>& message_loop_proxy,
       InputHandlerManagerClient* client,
-      RendererScheduler* renderer_scheduler);
+      scheduler::RendererScheduler* renderer_scheduler);
   ~InputHandlerManager();
 
   // Callable from the main thread only.
   void AddInputHandler(
       int routing_id,
       const base::WeakPtr<cc::InputHandler>& input_handler,
       const base::WeakPtr<RenderViewImpl>& render_view_impl);
 
   void ObserveWheelEventAndResultOnMainThread(
       int routing_id,
@@ skipping 32 matching lines @@
       int routing_id,
       const blink::WebMouseWheelEvent& wheel_event,
       const cc::InputHandlerScrollResult& scroll_result);
 
   typedef base::ScopedPtrHashMap<int,  // routing_id
                                  InputHandlerWrapper> InputHandlerMap;
   InputHandlerMap input_handlers_;
 
   scoped_refptr<base::MessageLoopProxy> message_loop_proxy_;
   InputHandlerManagerClient* client_;
-  RendererScheduler* renderer_scheduler_;  // Not owned.
+  scheduler::RendererScheduler* renderer_scheduler_;  // Not owned.
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_INPUT_INPUT_HANDLER_MANAGER_H_