Track transform animation content readiness on TransformNode.

cc/trees/transform_node.cc

 // Copyright 2016 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 "base/trace_event/trace_event_argument.h"
 #include "cc/base/math_util.h"
 #include "cc/layers/layer.h"
 #include "cc/trees/property_tree.h"
 #include "cc/trees/transform_node.h"
 #include "ui/gfx/geometry/point3_f.h"
@@ skipping 19 matching lines @@
       node_and_ancestors_are_flat(true),
       node_and_ancestors_have_only_integer_translation(true),
       scrolls(false),
       should_be_snapped(false),
       moved_by_inner_viewport_bounds_delta_x(false),
       moved_by_inner_viewport_bounds_delta_y(false),
       moved_by_outer_viewport_bounds_delta_x(false),
       moved_by_outer_viewport_bounds_delta_y(false),
       in_subtree_of_page_scale_layer(false),
       transform_changed(false),
+      ready_since_animation(true),
       post_local_scale_factor(1.0f) {}
 
 TransformNode::TransformNode(const TransformNode&) = default;
 
 bool TransformNode::operator==(const TransformNode& other) const {
   return id == other.id && parent_id == other.parent_id &&
          owning_layer_id == other.owning_layer_id &&
          pre_local == other.pre_local && local == other.local &&
          post_local == other.post_local && to_parent == other.to_parent &&
          source_node_id == other.source_node_id &&
@@ skipping 72 matching lines @@
 
 TransformCachedNodeData::~TransformCachedNodeData() {}
 
 bool TransformCachedNodeData::operator==(
     const TransformCachedNodeData& other) const {
   return from_screen == other.from_screen && to_screen == other.to_screen &&
          is_showing_backface == other.is_showing_backface;
 }
 
 }  // namespace cc