Enable users of NotificationUIManager to specify binary images.

ash/shell/window_type_launcher.cc

Index: ash/shell/window_type_launcher.cc
diff --git a/ash/shell/window_type_launcher.cc b/ash/shell/window_type_launcher.cc
index bf7d059ca9e7359ce4050f468798b182b5ad5240..3080f91c9a158a09927621ca6871713dbf0fadf6 100644
--- a/ash/shell/window_type_launcher.cc
+++ b/ash/shell/window_type_launcher.cc
@@ -347,16 +347,21 @@ void WindowTypeLauncher::ButtonPressed(views::Button* sender,
                                             base::TimeDelta::FromSeconds(5));
 
   } else if (sender == show_web_notification_) {
+    scoped_ptr<message_center::Notification> notification;
+    notification.reset(new message_center::Notification(
+        message_center::NOTIFICATION_TYPE_SIMPLE,
+        "id0",
+        ASCIIToUTF16("Test Shell Web Notification"),
+        ASCIIToUTF16("Notification message body."),
+        gfx::Image(),
+        ASCIIToUTF16("www.testshell.org"),
+        "" /* extension id */,
+        NULL /* optional_fields */,
+        NULL /* delegate */));
+
     ash::Shell::GetPrimaryRootWindowController()->shelf()->status_area_widget()
         ->web_notification_tray()->message_center()
-        ->AddNotification(message_center::NOTIFICATION_TYPE_SIMPLE,
-                          "id0",
-                          ASCIIToUTF16("Test Shell Web Notification"),
-                          ASCIIToUTF16("Notification message body."),
-                          ASCIIToUTF16("www.testshell.org"),
-                          "" /* extension id */,
-                          NULL /* optional_fields */,
-                          NULL /* delegate */);
+        ->AddNotification(notification.Pass());
   }
 #if !defined(OS_MACOSX)
       else if (sender == examples_button_) {