| Index: ppapi/proxy/plugin_resource_tracker.h | 
| diff --git a/ppapi/proxy/plugin_resource_tracker.h b/ppapi/proxy/plugin_resource_tracker.h | 
| index e806645e92c593f5994c435f5f97d0226b7f598e..7dbeb6190c341ff56c4d1b0ee0b79e1c16ef25c3 100644 | 
| --- a/ppapi/proxy/plugin_resource_tracker.h | 
| +++ b/ppapi/proxy/plugin_resource_tracker.h | 
| @@ -19,7 +19,9 @@ | 
| #include "ppapi/shared_impl/host_resource.h" | 
| #include "ppapi/shared_impl/resource_tracker.h" | 
|  | 
| +namespace base { | 
| template<typename T> struct DefaultSingletonTraits; | 
| +} | 
|  | 
| namespace ppapi { | 
|  | 
|  |