3 files changed, 20 insertions, 4 deletions
diff --git a/ui/message_center/notification.cc b/ui/message_center/notification.cc
index eb4c8a8..6a90e30 100644
--- a/ui/message_center/notification.cc
+++ b/ui/message_center/notification.cc
@@ -28,7 +28,8 @@ RichNotificationData::RichNotificationData()
     : priority(DEFAULT_PRIORITY),
       never_timeout(false),
       timestamp(base::Time::Now()),
-      progress(0) {}
+      progress(0),
+      should_make_spoken_feedback_for_popup_updates(true) {}
 
 RichNotificationData::RichNotificationData(const RichNotificationData& other)
     : priority(other.priority),
@@ -38,7 +39,9 @@ RichNotificationData::RichNotificationData(const RichNotificationData& other)
       image(other.image),
       items(other.items),
       progress(other.progress),
-      buttons(other.buttons) {}
+      buttons(other.buttons),
+      should_make_spoken_feedback_for_popup_updates(
+          other.should_make_spoken_feedback_for_popup_updates) {}
 
 RichNotificationData::~RichNotificationData() {}
 
diff --git a/ui/message_center/notification.h b/ui/message_center/notification.h
index 6a742e0..915f812 100644
--- a/ui/message_center/notification.h
+++ b/ui/message_center/notification.h
@@ -47,6 +47,7 @@ class MESSAGE_CENTER_EXPORT RichNotificationData {
   std::vector<NotificationItem> items;
   int progress;
   std::vector<ButtonInfo> buttons;
+  bool should_make_spoken_feedback_for_popup_updates;
 };
 
 class MESSAGE_CENTER_EXPORT Notification {
diff --git a/ui/message_center/views/toast_contents_view.cc b/ui/message_center/views/toast_contents_view.cc
index 6db7f21..93cd953 100644
--- a/ui/message_center/views/toast_contents_view.cc
+++ b/ui/message_center/views/toast_contents_view.cc
@@ -93,8 +93,20 @@ void ToastContentsView::SetContents(MessageView* view) {
   // popup toast, and the new contents should be read through a11y feature.
   // The notification type should be ALERT, otherwise the accessibility message
   // won't be read for this view which returns ROLE_WINDOW.
-  if (already_has_contents)
-    NotifyAccessibilityEvent(ui::AccessibilityTypes::EVENT_ALERT, false);
+  if (already_has_contents) {
+    const NotificationList::Notifications& notifications =
+        message_center_->GetNotifications();
+    for (NotificationList::Notifications::const_iterator iter =
+             notifications.begin(); iter != notifications.end(); ++iter) {
+      if ((*iter)->id() != id_)
+        continue;
+
+      const RichNotificationData& optional = (*iter)->rich_notification_data();
+      if (optional.should_make_spoken_feedback_for_popup_updates)
+        NotifyAccessibilityEvent(ui::AccessibilityTypes::EVENT_ALERT, false);
+      break;
+    }
+  }
 }
 
 void ToastContentsView::RevealWithAnimation(gfx::Point origin) {