| Index: sync/protocol/client_commands.proto | 
| diff --git a/sync/protocol/client_commands.proto b/sync/protocol/client_commands.proto | 
| index e57425506ec1a65dd18dbe15f30157892359fbd9..c3c18ef76c01879390196a0a7a1bf7431cf1ab18 100644 | 
| --- a/sync/protocol/client_commands.proto | 
| +++ b/sync/protocol/client_commands.proto | 
| @@ -28,4 +28,7 @@ message ClientCommand { | 
|  | 
| // Number of seconds to delay before the throttled client should retry. | 
| optional int32 throttle_delay_seconds = 5; | 
| + | 
| +  // Maximum number of local nudges to buffer per-type. | 
| +  optional int32 client_invalidation_hint_buffer_size = 6; | 
| }; | 
|  |