CC Animation: Introduce some dirty flags to optimize PushProperties on commit

cc/test/animation_timelines_test_common.cc

 // Copyright 2015 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/test/animation_timelines_test_common.h"
 
 #include "base/memory/ptr_util.h"
 #include "cc/animation/animation_events.h"
 #include "cc/animation/animation_id_provider.h"
 #include "cc/animation/animation_player.h"
@@ skipping 500 matching lines @@
                    &element_animations->players_list())
                    .GetNext()
              : nullptr;
 }
 
 int AnimationTimelinesTest::NextTestLayerId() {
   next_test_layer_id_++;
   return next_test_layer_id_;
 }
 
+bool AnimationTimelinesTest::CheckPlayerTimelineNeedsPushProperties(
+    bool needs_push_properties) const {
+  DCHECK(player_);
+  DCHECK(timeline_);
+
+  bool result = true;
+
+  if (player_->needs_push_properties() != needs_push_properties) {
+    ADD_FAILURE() << "player_->needs_push_properties() expected to be "
+                  << needs_push_properties;
+    result = false;
+  }
+  if (timeline_->needs_push_properties() != needs_push_properties) {
+    ADD_FAILURE() << "timeline_->needs_push_properties() expected to be "
+                  << needs_push_properties;
+    result = false;
+  }
+  if (player_->element_animations() &&
+      player_->element_animations()->needs_push_properties() !=
+          needs_push_properties) {
+    ADD_FAILURE() << "player_->element_animations()->needs_push_properties() "
+                     "expected to be "
+                  << needs_push_properties;
+    result = false;
+  }
+
+  return result;
+}
+
 }  // namespace cc