Plumb opener information when creating RenderFrames and RenderFrameProxies for subframes.

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index 508a3d6d3f31978c878b8e842fba63cb30e2eeb7..00a5a902f8b402db13798316f584bbe9c6f61f8f 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -712,6 +712,8 @@ void RenderViewImpl::Initialize(const ViewMsg_New_Params& params,
       proxy = RenderFrameProxy::CreateFrameProxy(
           params.proxy_routing_id,
           MSG_ROUTING_NONE,
+          // Opener (if any) will be set separately below.
+          MSG_ROUTING_NONE,
           routing_id_,
           params.replicated_frame_state);
     }