cc: Move tracking of layer_property_changed to main thread (3)

cc/layers/layer.cc

Index: cc/layers/layer.cc
diff --git a/cc/layers/layer.cc b/cc/layers/layer.cc
index 24eed8d83eaecdf736cf5476231ea4955a107dab..941b897b696bd7b1aee21ecd508429bbabc6273c 100644
--- a/cc/layers/layer.cc
+++ b/cc/layers/layer.cc
@@ -292,6 +292,7 @@ void Layer::InsertChild(scoped_refptr<Layer> child, size_t index) {
                          (child->DrawsContent() ? 1 : 0));
   child->SetParent(this);
   child->stacking_order_changed_ = true;

[ajuma, 2016/02/22 20:43:09]

Is Layer::stacking_order_changed_ unused now that it isn't being pushed?

+  child->SetSubtreePropertyChanged();
 
   index = std::min(index, children_.size());
   children_.insert(children_.begin() + index, child);
@@ -684,6 +685,7 @@ void Layer::SetTransform(const gfx::Transform& transform) {
   if (transform_ == transform)
     return;
 
+  SetSubtreePropertyChanged();
   if (layer_tree_host_) {
     if (TransformNode* transform_node =
             layer_tree_host_->property_trees()->transform_tree.Node(
@@ -697,6 +699,7 @@ void Layer::SetTransform(const gfx::Transform& transform) {
             Are2dAxisAligned(transform_, transform, &invertible);
         transform_node->data.local = transform;
         transform_node->data.needs_local_transform_update = true;
+        transform_node->data.transform_changed = true;
         layer_tree_host_->property_trees()->transform_tree.set_needs_update(
             true);
         if (preserves_2d_axis_alignment)
@@ -1363,8 +1366,6 @@ void Layer::PushPropertiesTo(LayerImpl* layer) {
   update_rect_.Union(layer->update_rect());
   layer->SetUpdateRect(update_rect_);
 
-  layer->SetStackingOrderChanged(stacking_order_changed_);
-
   if (layer->layer_animation_controller() && layer_animation_controller_)
     layer_animation_controller_->PushAnimationUpdatesTo(
         layer->layer_animation_controller());