Convert MediaLog from being ref counted to owned by WebMediaPlayer.

media/mojo/services/interface_factory_impl.cc

Index: media/mojo/services/interface_factory_impl.cc
diff --git a/media/mojo/services/interface_factory_impl.cc b/media/mojo/services/interface_factory_impl.cc
index 143e5b6e2f0d695dd0717af56c450a1b99511c47..baac449991d95a452a83ca8ab74dfe4c2be99887 100644
--- a/media/mojo/services/interface_factory_impl.cc
+++ b/media/mojo/services/interface_factory_impl.cc
@@ -37,14 +37,16 @@ namespace media {
 
 InterfaceFactoryImpl::InterfaceFactoryImpl(
     service_manager::mojom::InterfaceProviderPtr interfaces,
-    scoped_refptr<MediaLog> media_log,
+    MediaLog* media_log,
     std::unique_ptr<service_manager::ServiceContextRef> connection_ref,
     MojoMediaClient* mojo_media_client)
     :
+#if defined(ENABLE_MOJO_RENDERER)
+      media_log_(media_log),
+#endif
 #if defined(ENABLE_MOJO_CDM)
       interfaces_(std::move(interfaces)),
 #endif
-      media_log_(media_log),
       connection_ref_(std::move(connection_ref)),
       mojo_media_client_(mojo_media_client) {
   DVLOG(1) << __func__;