Mojo C++ bindings: remove usage of AssociatedGroup from content/

content/browser/frame_host/render_frame_host_impl.cc

Index: content/browser/frame_host/render_frame_host_impl.cc
diff --git a/content/browser/frame_host/render_frame_host_impl.cc b/content/browser/frame_host/render_frame_host_impl.cc
index 4a088e0c7991f4b0d7ad539e18316fad5876cceb..e6eb050896fbef0b0b43002ca613443e912bf69d 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -603,8 +603,7 @@ RenderFrameHostImpl::GetRemoteAssociatedInterfaces() {
       RenderProcessHostImpl* process =
           static_cast<RenderProcessHostImpl*>(GetProcess());
       process->GetRemoteRouteProvider()->GetRoute(
-          GetRoutingID(),
-          mojo::MakeRequest(&remote_interfaces, channel->GetAssociatedGroup()));
+          GetRoutingID(), mojo::MakeRequest(&remote_interfaces));
     } else {
       // The channel may not be initialized in some tests environments. In this
       // case we set up a dummy interface provider.