Track transform animation content readiness on TransformNode.

cc/trees/layer_tree_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_impl.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 597 matching lines @@
 
 void LayerTreeImpl::SetTransformMutated(ElementId element_id,
                                         const gfx::Transform& transform) {
   DCHECK_EQ(1u, property_trees()->element_id_to_transform_node_index.count(
                     element_id));
   element_id_to_transform_animations_[element_id] = transform;
   if (!property_trees()->transform_tree.OnTransformAnimated(element_id,
                                                             transform))
     return;
 
-  if (LayerImpl* layer = LayerByElementId(element_id))
-    layer->set_was_ever_ready_since_last_transform_animation(false);

[wkorman, 2017/05/20 01:31:27]

This is now enacted via TransformTree::OnTransformAnimated elsewhere in this
patch.

-
   set_needs_update_draw_properties();
 }
 
 void LayerTreeImpl::SetOpacityMutated(ElementId element_id, float opacity) {
   DCHECK_EQ(
       1u, property_trees()->element_id_to_effect_node_index.count(element_id));
   element_id_to_opacity_animations_[element_id] = opacity;
   if (property_trees()->effect_tree.OnOpacityAnimated(element_id, opacity))
     set_needs_update_draw_properties();
 }
@@ skipping 1477 matching lines @@
 
 void LayerTreeImpl::ResetAllChangeTracking() {
   layers_that_should_push_properties_.clear();
   // Iterate over all layers, including masks.
   for (auto& layer : *layers_)
     layer->ResetChangeTracking();
   property_trees_.ResetAllChangeTracking();
 }
 
 }  // namespace cc