arc: Support more types of notifications.

components/arc/common/notifications.mojom

Index: components/arc/common/notifications.mojom
diff --git a/components/arc/common/notifications.mojom b/components/arc/common/notifications.mojom
index 068a08454cb382fba73b3f06f35b9c5bb9856c20..8a1f05ad313ec968196e7f70726a7c960616e126 100644
--- a/components/arc/common/notifications.mojom
+++ b/components/arc/common/notifications.mojom
@@ -24,7 +24,8 @@ enum ArcNotificationType {
   BASIC = 0,
   IMAGE = 1,
   PROGRESS = 2,
-  MAX = PROGRESS
+  LIST = 3,
+  MAX = LIST

[dcheng, 2016/04/13 23:55:20]

I don't think MAX serves a purpose in mojo

[yoshiki, 2016/04/15 00:32:34]

Done.

 };
 
 struct ArcNotificationButton {
@@ -61,6 +62,12 @@ struct ArcNotificationData {
   // Flag if the notification has FLAG_ONGOING_EVENT.
   [MinVersion=1]
   bool ongoing_event;
+  // Subtexts for list notifications.
+  [MinVersion=3]
+  array<string>? texts;
+  // Image for image notifications.
+  [MinVersion=3]
+  ArcNotificationBitmap? big_picture;
 };
 
 [MinVersion=2]
@@ -73,6 +80,13 @@ struct ArcToastData {
   int32 duration;
 };
 
+[MinVersion=3]
+struct ArcNotificationBitmap {
+  uint32 width;
+  uint32 height;
+  array<uint8> pixel_data;
+};
+
 interface NotificationsHost {
   // Tells the Chrome that a notification is posted (created or updated) on
   // Android.