| Index: components/metrics/proto/ukm/entry.proto | 
| diff --git a/components/metrics/proto/ukm/entry.proto b/components/metrics/proto/ukm/entry.proto | 
| index 22385c89bd047933a0874a151ebc5bb3a1228912..b046c7392907e6715e7fa71796dffecb6927a7ce 100644 | 
| --- a/components/metrics/proto/ukm/entry.proto | 
| +++ b/components/metrics/proto/ukm/entry.proto | 
| @@ -20,7 +20,7 @@ message Entry { | 
| optional int32 parent_id = 2; | 
|  | 
| // The id of the Source this Event is associated with. | 
| -  optional int32 source_id = 3; | 
| +  optional int64 source_id = 3; | 
|  | 
| // Type of the Event. This is a hash of the name (as a string). | 
| optional fixed64 event_hash = 4; | 
|  |