Remove unnecessary image downloading handler of notifications.

chrome/browser/notifications/notification_test_util.cc

Index: chrome/browser/notifications/notification_test_util.cc
diff --git a/chrome/browser/notifications/notification_test_util.cc b/chrome/browser/notifications/notification_test_util.cc
index 4825d723903212d7d05c4efeafdbb429d52b8ee2..e47f1959713d377540e60b20fd6e1bc9e0186cec 100644
--- a/chrome/browser/notifications/notification_test_util.cc
+++ b/chrome/browser/notifications/notification_test_util.cc
@@ -11,18 +11,17 @@ MockNotificationDelegate::~MockNotificationDelegate() {}
 
 std::string MockNotificationDelegate::id() const { return id_; }
 
-content::WebContents* MockNotificationDelegate::GetWebContents() const {
-  return NULL;
-}
-
 StubNotificationUIManager::StubNotificationUIManager(const GURL& welcome_origin)
-    : notification_(GURL(),
-                    gfx::Image(),
+    : notification_(message_center::NOTIFICATION_TYPE_SIMPLE,
+                    GURL(),
                     base::string16(),
                     base::string16(),
+                    gfx::Image(),
                     blink::WebTextDirectionDefault,
+                    message_center::NotifierId(),
                     base::string16(),
                     base::string16(),
+                    message_center::RichNotificationData(),
                     new MockNotificationDelegate("stub")),
       welcome_origin_(welcome_origin),
       welcomed_(false),