Revert of cc: Delete all the RendererCapabilities.

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 de8829104c069040d0419088862f5730d60ce05d..ad25a4cd0c589daed7d6065dff13570f1e9c4861 100644
--- a/cc/trees/layer_tree_impl.cc
+++ b/cc/trees/layer_tree_impl.cc
@@ -1263,6 +1263,10 @@
   return layer_tree_host_impl_->debug_state();
 }
 
+const RendererCapabilitiesImpl& LayerTreeImpl::GetRendererCapabilities() const {
+  return layer_tree_host_impl_->GetRendererCapabilities();
+}
+
 ContextProvider* LayerTreeImpl::context_provider() const {
   return output_surface()->context_provider();
 }