Add autotestPrivate.getVisibleNotifications API

chrome/common/extensions/api/autotest_private.idl

Index: chrome/common/extensions/api/autotest_private.idl
diff --git a/chrome/common/extensions/api/autotest_private.idl b/chrome/common/extensions/api/autotest_private.idl
index 65f89b269533050d27014c86319f30263842ff98..c47c12095491f8addd6ee0f83ff5313f70501685 100644
--- a/chrome/common/extensions/api/autotest_private.idl
+++ b/chrome/common/extensions/api/autotest_private.idl
@@ -53,6 +53,19 @@ namespace autotestPrivate {
   };
   callback ExtensionsInfoCallback = void (ExtensionsInfoArray info);
 
+  dictionary Notification {
+    DOMString id;
+    DOMString type;
+    DOMString title;
+    DOMString message;
+    long priority;
+    long progress;
+  };
+  dictionary NotificationArray {
+    Notification[] notifications;
+  };
+  callback NotificationArrayCallback = void (NotificationArray notifications);
+
   interface Functions {
     // Logout of a user session.
     static void logout();
@@ -103,5 +116,8 @@ namespace autotestPrivate {
     // Swap the primary mouse button for left click.
     // |right|: if set, swap the primary mouse button.
     static void setPrimaryButtonRight(boolean right);
+
+    // Get visible notifications on the system.
+    static void getVisibleNotifications(NotificationArrayCallback callback);
   };
 };