Reduce the impact of the push/notification kill switches

content/public/common/push_messaging_status.h

Index: content/public/common/push_messaging_status.h
diff --git a/content/public/common/push_messaging_status.h b/content/public/common/push_messaging_status.h
index b160951ffdd9119ebfc09fb56d9200cc9bc75d11..e272cf7494604b0175fc05bb9acd17e7fde5ae41 100644
--- a/content/public/common/push_messaging_status.h
+++ b/content/public/common/push_messaging_status.h
@@ -221,12 +221,16 @@ enum PushDeliveryStatus {
   // The message was delivered, but the Service Worker timed out processing it.
   PUSH_DELIVERY_STATUS_TIMEOUT = 7,
 
+  // The message could not be delivered because the permission granted to the
+  // origin has been suspended, for example through a kill switch.
+  PUSH_DELIVERY_STATUS_PERMISSION_SUSPENDED = 8,
+
   // NOTE: Do not renumber these as that would confuse interpretation of
   // previously logged data. When making changes, also update the enum list
   // in tools/metrics/histograms/histograms.xml to keep it in sync, and
   // update PUSH_DELIVERY_STATUS_LAST below.
 
-  PUSH_DELIVERY_STATUS_LAST = PUSH_DELIVERY_STATUS_TIMEOUT
+  PUSH_DELIVERY_STATUS_LAST = PUSH_DELIVERY_STATUS_PERMISSION_SUSPENDED
 };
 
 // Push message user visible tracking for reporting in UMA. Enum values can be