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

media/mojo/services/media_service_unittest.cc

Index: media/mojo/services/media_service_unittest.cc
diff --git a/media/mojo/services/media_service_unittest.cc b/media/mojo/services/media_service_unittest.cc
index c5f9ef51faa0bdeac4b023072be62a50515f9195..bdc2cd7cd22c4451f6f89b568b15f10f6655cb6b 100644
--- a/media/mojo/services/media_service_unittest.cc
+++ b/media/mojo/services/media_service_unittest.cc
@@ -132,8 +132,7 @@ class MediaServiceTest : public service_manager::test::ServiceTest {
         &video_stream_, MakeRequest(&video_stream_proxy)));
 
     mojom::RendererClientAssociatedPtrInfo client_ptr_info;
-    renderer_client_binding_.Bind(&client_ptr_info,
-                                  renderer_.associated_group());
+    renderer_client_binding_.Bind(&client_ptr_info);
 
     EXPECT_CALL(*this, OnRendererInitialized(expected_result))
         .Times(Exactly(1))