Change LayerHostImpl to use frame time from BeginFrameArgs rather than ::Now()

cc/layers/layer_impl.cc

 // Copyright 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.
 
 #include "cc/layers/layer_impl.h"
 
 #include "base/debug/trace_event.h"
 #include "base/json/json_reader.h"
 #include "base/strings/stringprintf.h"
 #include "cc/animation/animation_registrar.h"
@@ skipping 1267 matching lines @@
   }
 
   layer_tree_impl()->set_needs_update_draw_properties();
   // TODO(wjmaclean) Should the rest of this function be deleted?
   // TODO(wjmaclean) The scrollbar animator for the pinch-zoom scrollbars should
   // activate for every scroll on the main frame, not just the scrolls that move
   // the pinch virtual viewport (i.e. trigger from either inner or outer
   // viewport).
   if (scrollbar_animation_controller_) {
     bool should_animate = scrollbar_animation_controller_->DidScrollUpdate(
-        layer_tree_impl_->CurrentPhysicalTimeTicks());
+        layer_tree_impl_->CurrentFrameTimeTicks());

[aelias_OOO_until_Jul13, 2014/03/21 01:37:44]

physical time

     if (should_animate)
       layer_tree_impl_->StartScrollbarAnimation();
   }
 }
 
 void LayerImpl::DidBecomeActive() {
   if (layer_tree_impl_->settings().scrollbar_animator ==
       LayerTreeSettings::NoAnimator) {
     return;
   }
@@ skipping 191 matching lines @@
 scoped_ptr<base::Value> LayerImpl::AsValue() const {
   scoped_ptr<base::DictionaryValue> state(new base::DictionaryValue());
   AsValueInto(state.get());
   return state.PassAs<base::Value>();
 }
 
 void LayerImpl::RunMicroBenchmark(MicroBenchmarkImpl* benchmark) {
   benchmark->RunOnLayer(this);
 }
 }  // namespace cc