cc: Add frame data to LTHI tracing

cc/trees/layer_tree_impl.cc

Index: cc/trees/layer_tree_impl.cc
diff --git a/cc/trees/layer_tree_impl.cc b/cc/trees/layer_tree_impl.cc
index be25e6543063f5cba9201e8d242a6e7fec4e55fc..757220fe382074c7839af20440d6b7fab914ad91 100644
--- a/cc/trees/layer_tree_impl.cc
+++ b/cc/trees/layer_tree_impl.cc
@@ -40,6 +40,8 @@ LayerTreeImpl::LayerTreeImpl(LayerTreeHostImpl* layer_tree_host_impl)
 }
 
 LayerTreeImpl::~LayerTreeImpl() {
+  TRACE_EVENT_OBJECT_DELETED_WITH_ID(
+      TRACE_DISABLED_BY_DEFAULT("cc.debug"), "cc::LayerTreeImpl", this);
   // Need to explicitly clear the tree prior to destroying this so that
   // the LayerTreeImpl pointer is still valid in the LayerImpl dtor.
   root_layer_.reset();
@@ -509,7 +511,8 @@ AnimationRegistrar* LayerTreeImpl::animationRegistrar() const {
 scoped_ptr<base::Value> LayerTreeImpl::AsValue() const {
   scoped_ptr<base::DictionaryValue> state(new base::DictionaryValue());
   TracedValue::MakeDictIntoImplicitSnapshot(
-      state.get(), "cc::LayerTreeImpl", this);
+      TRACE_DISABLED_BY_DEFAULT("cc.debug"), state.get(), "cc::LayerTreeImpl",
+      this);
 
   state->Set("root_layer", root_layer_->AsValue().release());