Adding support for VSyncProvider to the software drawing path

content/browser/aura/software_browser_compositor_output_surface.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_BROWSER_AURA_SOFTWARE_OUTPUT_SURFACE_H_
 #define CONTENT_BROWSER_AURA_SOFTWARE_OUTPUT_SURFACE_H_
 
+#include "base/memory/weak_ptr.h"
 #include "cc/output/output_surface.h"
+#include "ui/compositor/compositor.h"
 
-namespace cc { class SoftwareOutputDevice; }
+namespace base {
+class MessageLoopProxy;
+}
+
+namespace cc {
+class SoftwareOutputDevice;
+}
 
 namespace content {
 
+class VSyncListener;
+
 // TODO(danakj): Inherit from BrowserCompositorOutputSurface to share stuff like
 // reflectors, when we split the GL-specific stuff out of the class.
 class SoftwareBrowserCompositorOutputSurface : public cc::OutputSurface {
  public:
   static scoped_ptr<SoftwareBrowserCompositorOutputSurface> Create(
-      scoped_ptr<cc::SoftwareOutputDevice> software_device) {
+      scoped_ptr<cc::SoftwareOutputDevice> software_device,
+      base::MessageLoopProxy* compositor_message_loop,
+      base::WeakPtr<ui::Compositor> compositor) {
     return make_scoped_ptr(
-        new SoftwareBrowserCompositorOutputSurface(software_device.Pass()));
+        new SoftwareBrowserCompositorOutputSurface(software_device.Pass(),
+                                                   compositor_message_loop,
+                                                   compositor));
   }
 
+  virtual ~SoftwareBrowserCompositorOutputSurface();
+
  private:
-  explicit SoftwareBrowserCompositorOutputSurface(
-      scoped_ptr<cc::SoftwareOutputDevice> software_device);
+  friend class VSyncListener;
+
+  SoftwareBrowserCompositorOutputSurface(
+      scoped_ptr<cc::SoftwareOutputDevice> software_device,
+      base::MessageLoopProxy* compositor_message_loop,
+      base::WeakPtr<ui::Compositor> compositor);
 
   virtual void SwapBuffers(cc::CompositorFrame* frame) OVERRIDE;
+
+  scoped_refptr<VSyncListener> vsync_listener_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_AURA_SOFTWARE_OUTPUT_SURFACE_H_