Compositor thread plumbing for layout rectangle debug info.

cc/layers/layer.cc

Index: cc/layers/layer.cc
diff --git a/cc/layers/layer.cc b/cc/layers/layer.cc
index e0ffb5cd9356998102fb6ff4081bcd6d73bff045..1d42a6ead65954558363970c72b1a7294c1b0f8d 100644
--- a/cc/layers/layer.cc
+++ b/cc/layers/layer.cc
@@ -929,6 +929,8 @@ void Layer::PushPropertiesTo(LayerImpl* layer) {
 
   needs_push_properties_ = false;
   num_dependents_need_push_properties_ = 0;
+
+  layer->SetDebugInfo(debug_info_);

[enne (OOO), 2013/11/25 20:16:45]

ConvertableToTraceFormat is not thread-safe refcounted.  This seems a little
dodgy.

[chrishtr_gmail.com, 2013/11/25 22:48:25]

Good catch. I'll try the approach we discussed offline of adding ::AsValue to
the debug info object.

[chrishtr_gmail.com, 2013/11/26 21:49:04]

Updated to not store the debug_Info_ object at all here.

 }
 
 scoped_ptr<LayerImpl> Layer::CreateLayerImpl(LayerTreeImpl* tree_impl) {
@@ -958,6 +960,10 @@ bool Layer::Update(ResourceUpdateQueue* queue,
   return false;
 }
 
+void Layer::SetDebugInfo(base::debug::ConvertableToTraceFormat* debug_info) {
+  debug_info_ = debug_info;
+}
+
 bool Layer::NeedMoreUpdates() {
   return false;
 }