Ensure LayerTreeHostImpl's current frame time is updated every frame

cc/trees/layer_tree_host_impl.cc

 // 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.
 
 #include "cc/trees/layer_tree_host_impl.h"
 
 #include <algorithm>
 
 #include "base/basictypes.h"
 #include "base/json/json_writer.h"
@@ skipping 94 matching lines @@
           new DebugScopedSetImplThread(layer_tree_host_impl_->proxy()));
     }
 
     layer_tree_host_impl_->ActivatePendingTreeIfNeeded();
     layer_tree_host_impl_->Animate(
         layer_tree_host_impl_->CurrentFrameTimeTicks(),
         layer_tree_host_impl_->CurrentFrameTime());
     layer_tree_host_impl_->UpdateBackgroundAnimateTicking(true);
     bool start_ready_animations = true;
     layer_tree_host_impl_->UpdateAnimationState(start_ready_animations);
-    layer_tree_host_impl_->BeginNextFrame();
+    layer_tree_host_impl_->ResetCurrentFrameTimeForNextFrame();
   }
 
   void SetActive(bool active) {
     if (active != time_source_->Active())
       time_source_->SetActive(active);
   }
 
  private:
   LayerTreeHostImplTimeSourceAdapter(
       LayerTreeHostImpl* layer_tree_host_impl,
@@ skipping 1957 matching lines @@
     return;
 
   GlobalStateThatImpactsTilePriority new_state(tile_manager_->GlobalState());
   if (new_state.tree_priority == priority)
     return;
 
   new_state.tree_priority = priority;
   tile_manager_->SetGlobalState(new_state);
 }
 
-void LayerTreeHostImpl::BeginNextFrame() {
+void LayerTreeHostImpl::ResetCurrentFrameTimeForNextFrame() {
   current_frame_timeticks_ = base::TimeTicks();
   current_frame_time_ = base::Time();
 }
 
 static void UpdateCurrentFrameTime(base::TimeTicks* ticks, base::Time* now) {
   if (ticks->is_null()) {
     DCHECK(now->is_null());
     *ticks = base::TimeTicks::Now();
     *now = base::Time::Now();
   }
@@ skipping 58 matching lines @@
 }
 
 void LayerTreeHostImpl::SetDebugState(const LayerTreeDebugState& debug_state) {
   if (debug_state_.continuous_painting != debug_state.continuous_painting)
     paint_time_counter_->ClearHistory();
 
   debug_state_ = debug_state;
 }
 
 }  // namespace cc