Make progress notifications an alert.

chrome/browser/notifications/notification_platform_bridge_mac.mm

Index: chrome/browser/notifications/notification_platform_bridge_mac.mm
diff --git a/chrome/browser/notifications/notification_platform_bridge_mac.mm b/chrome/browser/notifications/notification_platform_bridge_mac.mm
index 291d8bccebd17cb293f0e76dc5caa4cbb80395c3..3d21800d50ed5df045d8b02e5f8df52811fd31dd 100644
--- a/chrome/browser/notifications/notification_platform_bridge_mac.mm
+++ b/chrome/browser/notifications/notification_platform_bridge_mac.mm
@@ -182,6 +182,7 @@ void NotificationPlatformBridgeMac::Display(
 
   [builder
       setTitle:base::SysUTF16ToNSString(CreateNotificationTitle(notification))];
+
   [builder setContextMessage:base::SysUTF16ToNSString(notification.message())];
 
   bool requires_attribution =
@@ -246,7 +247,7 @@ void NotificationPlatformBridgeMac::Display(
   // Send persistent notifications to the XPC service so they
   // can be displayed as alerts. Chrome itself can only display
   // banners.
-  if (notification.never_timeout()) {
+  if (notification.never_timeout() || notification.progress() > 0) {

[Peter Beverloo, 2017/04/13 14:14:14]

Please detail why we're doing this in the comment above.

[Miguel Garcia, 2017/04/13 16:36:19]

Done.

     NSDictionary* dict = [builder buildDictionary];
     [alert_dispatcher_ dispatchNotification:dict];
   } else {