Compositor bindings for mojo html_viewer

mojo/cc/output_surface_mojo.h

 // Copyright 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.
 
 #ifndef MOJO_CC_OUTPUT_SURFACE_MOJO_H_
 #define MOJO_CC_OUTPUT_SURFACE_MOJO_H_
 
 #include "cc/output/output_surface.h"
 #include "cc/surfaces/surface_id.h"
 #include "cc/surfaces/surface_id_allocator.h"
 #include "mojo/services/public/interfaces/surfaces/surfaces.mojom.h"
 
 namespace mojo {
 
+class OutputSurfaceMojoClient {
+ public:
+  virtual ~OutputSurfaceMojoClient() {}
+
+  virtual void DidCreateSurface(cc::SurfaceId id) = 0;
+};
+
 class OutputSurfaceMojo : public cc::OutputSurface, public SurfaceClient {
  public:
-  OutputSurfaceMojo(const scoped_refptr<cc::ContextProvider>& context_provider,
+  OutputSurfaceMojo(OutputSurfaceMojoClient* client,
+                    const scoped_refptr<cc::ContextProvider>& context_provider,
                     SurfacePtr surface,
                     uint32_t id_namespace);
-  virtual ~OutputSurfaceMojo();
 
   // SurfaceClient implementation.
   virtual void ReturnResources(Array<ReturnedResourcePtr> resources) OVERRIDE;
 
   // cc::OutputSurface implementation.
   virtual void SwapBuffers(cc::CompositorFrame* frame) OVERRIDE;
 
+ protected:
+  virtual ~OutputSurfaceMojo();
+
  private:
+  OutputSurfaceMojoClient* output_surface_mojo_client_;
   SurfacePtr surface_;
   cc::SurfaceIdAllocator id_allocator_;
   cc::SurfaceId surface_id_;
   gfx::Size surface_size_;
 
   DISALLOW_COPY_AND_ASSIGN(OutputSurfaceMojo);
 };
 }
 
 #endif  // MOJO_CC_OUTPUT_SURFACE_MOJO_H_