CC Animations: Port UI Browser Compositor to use compositor animation timelines.

ui/compositor/compositor.h

 // 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 UI_COMPOSITOR_COMPOSITOR_H_
 #define UI_COMPOSITOR_COMPOSITOR_H_
 
 #include <string>
 
 #include "base/containers/hash_tables.h"
@@ skipping 15 matching lines @@
 #include "ui/gfx/geometry/vector2d.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 #include "ui/gfx/native_widget_types.h"
 
 namespace base {
 class RunLoop;
 class SingleThreadTaskRunner;
 }
 
 namespace cc {
+class AnimationTimeline;
 class ContextProvider;
 class Layer;
 class LayerTreeDebugState;
 class LayerTreeHost;
 class RendererSettings;
 class SharedBitmapManager;
 class SurfaceIdAllocator;
 class TaskGraphRunner;
 }
 
@@ skipping 124 matching lines @@
 
   // Sets the root of the layer tree drawn by this Compositor. The root layer
   // must have no parent. The compositor's root layer is reset if the root layer
   // is destroyed. NULL can be passed to reset the root layer, in which case the
   // compositor will stop drawing anything.
   // The Compositor does not own the root layer.
   const Layer* root_layer() const { return root_layer_; }
   Layer* root_layer() { return root_layer_; }
   void SetRootLayer(Layer* root_layer);
 
+  cc::AnimationTimeline* GetAnimationTimeline() const;
+
   // Called when we need the compositor to preserve the alpha channel in the
   // output for situations when we want to render transparently atop something
   // else, e.g. Aero glass.
   void SetHostHasTransparentBackground(bool host_has_transparent_background);
 
   // The scale factor of the device that this compositor is
   // compositing layers on.
   float device_scale_factor() const { return device_scale_factor_; }
 
   // Where possible, draws are scissored to a damage region calculated from
@@ skipping 171 matching lines @@
   // layers on.
   float device_scale_factor_;
 
   int last_started_frame_;
   int last_ended_frame_;
 
   bool locks_will_time_out_;
   CompositorLock* compositor_lock_;
 
   LayerAnimatorCollection layer_animator_collection_;
+  scoped_refptr<cc::AnimationTimeline> animation_timeline_;
 
   // Used to send to any new CompositorBeginFrameObserver immediately.
   cc::BeginFrameArgs missed_begin_frame_args_;
 
   base::WeakPtrFactory<Compositor> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Compositor);
 };
 
 }  // namespace ui
 
 #endif  // UI_COMPOSITOR_COMPOSITOR_H_