SetCompositor     198 ui/compositor/compositor.cc     root_layer_->SetCompositor(NULL);
SetCompositor     270 ui/compositor/compositor.cc     root_layer_->SetCompositor(NULL);
SetCompositor     273 ui/compositor/compositor.cc     root_layer_->SetCompositor(this);
SetCompositor      82 ui/compositor/layer.h   void SetCompositor(Compositor* compositor);