cc: Move animate steps from proxies to LayerTreeHostImpl.

cc/trees/thread_proxy.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_THREAD_PROXY_H_
 #define CC_TREES_THREAD_PROXY_H_
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 111 matching lines @@
     CompletionEvent* completion_event_for_commit_held_on_tree_activation;
 
     // Set when the next draw should post DidCommitAndDrawFrame to the main
     // thread.
     bool next_frame_is_newly_committed_frame;
 
     bool inside_draw;
 
     bool input_throttled_until_commit;
 
-    base::TimeTicks animation_time;
-
     // Whether a commit has been completed since the last time animations were
     // ticked. If this happens, we need to animate again.
     bool did_commit_after_animating;
 
     DelayedUniqueNotifier smoothness_priority_expiration_notifier;
 
     scoped_ptr<BeginFrameSource> external_begin_frame_source;
 
     RenderingStatsInstrumentation* rendering_stats_instrumentation;
 
@@ skipping 163 matching lines @@
 
   base::WeakPtr<ThreadProxy> main_thread_weak_ptr_;
   base::WeakPtr<ThreadProxy> impl_thread_weak_ptr_;
 
   DISALLOW_COPY_AND_ASSIGN(ThreadProxy);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_THREAD_PROXY_H_