Mozart: Generalize frame scheduling.

services/gfx/compositor/scene_impl.h

 // Copyright 2015 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 SERVICES_GFX_COMPOSITOR_SCENE_IMPL_H_
 #define SERVICES_GFX_COMPOSITOR_SCENE_IMPL_H_
 
 #include "base/macros.h"
 #include "mojo/common/binding_set.h"
 #include "mojo/public/cpp/bindings/binding.h"
 #include "mojo/services/gfx/composition/interfaces/scenes.mojom.h"
 #include "mojo/services/gfx/composition/interfaces/scheduling.mojom.h"
 #include "services/gfx/compositor/compositor_engine.h"
 #include "services/gfx/compositor/scene_state.h"
 
 namespace compositor {
 
 // Scene interface implementation.
 // This object is owned by its associated SceneState.
 class SceneImpl : public mojo::gfx::composition::Scene,
-                  public mojo::gfx::composition::SceneScheduler {
+                  public mojo::gfx::composition::FrameScheduler {
  public:
   SceneImpl(
       CompositorEngine* engine,
       SceneState* state,
       mojo::InterfaceRequest<mojo::gfx::composition::Scene> scene_request);
   ~SceneImpl() override;
 
   void set_connection_error_handler(const base::Closure& handler) {
     scene_binding_.set_connection_error_handler(handler);
   }
 
  private:
   // |Scene|:
   void SetListener(mojo::InterfaceHandle<mojo::gfx::composition::SceneListener>
                        listener) override;
   void Update(mojo::gfx::composition::SceneUpdatePtr update) override;
   void Publish(mojo::gfx::composition::SceneMetadataPtr metadata) override;
   void GetScheduler(
-      mojo::InterfaceRequest<mojo::gfx::composition::SceneScheduler>
+      mojo::InterfaceRequest<mojo::gfx::composition::FrameScheduler>
           scheduler_request) override;
 
-  // |SceneScheduler|:
+  // |FrameScheduler|:
   void ScheduleFrame(const ScheduleFrameCallback& callback) override;
 
   CompositorEngine* const engine_;
   SceneState* const state_;
   mojo::Binding<mojo::gfx::composition::Scene> scene_binding_;
-  mojo::BindingSet<mojo::gfx::composition::SceneScheduler> scheduler_bindings_;
+  mojo::BindingSet<mojo::gfx::composition::FrameScheduler> scheduler_bindings_;
 
   DISALLOW_COPY_AND_ASSIGN(SceneImpl);
 };
 
 }  // namespace compositor
 
 #endif  // SERVICES_GFX_COMPOSITOR_SCENE_IMPL_H_