Bug 1504535 - P5 - Send a telemetry probe when failing to remove database files during initialization; r=asuth

Depends on D16820

Differential Revision: https://phabricator.services.mozilla.com/D17134

--HG--
extra : moz-landing-system : lando

dom/indexedDB/ActorsParent.cpp

@@ -15867,6 +15867,7 @@ nsresult QuotaClient::InitOrigin(PersistenceType aPersistenceType,
         // If we somehow running into here, it probably means we are in a
         // serious situation. e.g. Filesystem corruption.
         // Will handle this in bug 1521541.
+        REPORT_TELEMETRY_INIT_ERR(kExternalError, IDB_RemoveDBFiles);
         return NS_ERROR_UNEXPECTED;
       }
 

toolkit/components/telemetry/Histograms.json

@@ -14679,7 +14679,8 @@
           "IDB_InitDirectory",
           "IDB_GetFileSize",
           "IDB_GetWalFileSize",
-          "IDB_GetUsage"
+          "IDB_GetUsage",
+          "IDB_RemoveDBFiles"
       ],
       "keyed": true,
       "description": "Getting the number of errors in QuotaManager initialization."