Add a ServiceRegistry::ConnectToRemoteService that takes an InterfaceRequest<>.

content/public/common/service_registry.h

Index: content/public/common/service_registry.h
diff --git a/content/public/common/service_registry.h b/content/public/common/service_registry.h
index 2d65cf9ee93c7687d229cf162e03501785d6fb2f..efaefa03fa4681d8eb8386bce7d6edab3bccc224 100644
--- a/content/public/common/service_registry.h
+++ b/content/public/common/service_registry.h
@@ -54,8 +54,11 @@ class CONTENT_EXPORT ServiceRegistry {
   // Connect to an interface provided by the remote service provider.
   template <typename Interface>
   void ConnectToRemoteService(mojo::InterfacePtr<Interface>* ptr) {
-    ConnectToRemoteService(Interface::Name_,
-                           mojo::GetProxy(ptr).PassMessagePipe());
+    ConnectToRemoteService(mojo::GetProxy(ptr));
+  }
+  template <typename Interface>
+  void ConnectToRemoteService(mojo::InterfaceRequest<Interface> ptr) {
+    ConnectToRemoteService(Interface::Name_, ptr.PassMessagePipe());
   }
   virtual void ConnectToRemoteService(const base::StringPiece& name,
                                       mojo::ScopedMessagePipeHandle handle) = 0;