cc: Move animate steps from proxies to LayerTreeHostImpl.

cc/trees/layer_tree_host_impl.h

 // Copyright 2011 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 CC_TREES_LAYER_TREE_HOST_IMPL_H_
 #define CC_TREES_LAYER_TREE_HOST_IMPL_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 209 matching lines @@
     LayerImplList will_draw_layers;
     bool has_no_damage;
 
     // RenderPassSink implementation.
     void AppendRenderPass(scoped_ptr<RenderPass> render_pass) override;
   };
 
   virtual void BeginMainFrameAborted(CommitEarlyOutReason reason);
   virtual void BeginCommit();
   virtual void CommitComplete();
-  virtual void Animate(base::TimeTicks monotonic_time);
+  virtual void Animate();
   virtual void UpdateAnimationState(bool start_ready_animations);
   void ActivateAnimations();
   void MainThreadHasStoppedFlinging();
   void DidAnimateScrollOffset();
   void SetViewportDamage(const gfx::Rect& damage_rect);
 
   void SetTreeLayerFilterMutated(int layer_id,
                                  LayerTreeImpl* tree,
                                  const FilterOperations& filters);
   void SetTreeLayerOpacityMutated(int layer_id,
@@ skipping 186 matching lines @@
     return scroll_affects_scroll_handler_;
   }
   void QueueSwapPromiseForMainThreadScrollUpdate(
       scoped_ptr<SwapPromise> swap_promise);
 
   bool IsActivelyScrolling() const;
 
   virtual void SetVisible(bool visible);
   bool visible() const { return visible_; }
 
-  bool AnimationsAreVisible() { return visible() && CanDraw(); }
-
   void SetNeedsCommit() { client_->SetNeedsCommitOnImplThread(); }
   void SetNeedsAnimate();
   void SetNeedsRedraw();
 
   ManagedMemoryPolicy ActualManagedMemoryPolicy() const;
 
   size_t memory_allocation_limit_bytes() const;
 
   void SetViewportSize(const gfx::Size& device_viewport_size);
   gfx::Size device_viewport_size() const { return device_viewport_size_; }
@@ skipping 377 matching lines @@
   scoped_ptr<FrameTimingTracker> frame_timing_tracker_;
 
   scoped_ptr<Viewport> viewport_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerTreeHostImpl);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_HOST_IMPL_H_