Remove experimental code fro grouping notifications from the same source.

ui/message_center/views/message_center_view_unittest.cc

Index: ui/message_center/views/message_center_view_unittest.cc
diff --git a/ui/message_center/views/message_center_view_unittest.cc b/ui/message_center/views/message_center_view_unittest.cc
index 502b62d189431f5a88e11571f0346da0c06a8397..5155ddfb45bee2acd653525b409a18079cb06714 100644
--- a/ui/message_center/views/message_center_view_unittest.cc
+++ b/ui/message_center/views/message_center_view_unittest.cc
@@ -105,10 +105,6 @@ class MessageCenterViewTest : public testing::Test,
   virtual void ClickOnNotificationButton(const std::string& notification_id,
                                          int button_index) OVERRIDE;
   virtual void ExpandNotification(const std::string& notification_id) OVERRIDE;
-  virtual void GroupBodyClicked(const std::string& last_notification_id)
-      OVERRIDE;
-  virtual void ExpandGroup(const NotifierId& notifier_id) OVERRIDE;
-  virtual void RemoveGroup(const NotifierId& notifier_id) OVERRIDE;
 
   // Overridden from MockNotificationView::Test
   virtual void RegisterCall(CallType type) OVERRIDE;
@@ -217,22 +213,6 @@ void MessageCenterViewTest::ExpandNotification(
   NOTREACHED();
 }
 
-void MessageCenterViewTest::GroupBodyClicked(
-    const std::string& last_notification_id) {
-  // For this test, this method should not be invoked.
-  NOTREACHED();
-}
-
-void MessageCenterViewTest::ExpandGroup(const NotifierId& notifier_id) {
-  // For this test, this method should not be invoked.
-  NOTREACHED();
-}
-
-void MessageCenterViewTest::RemoveGroup(const NotifierId& notifier_id) {
-  // For this test, this method should not be invoked.
-  NOTREACHED();
-}
-
 void MessageCenterViewTest::RegisterCall(CallType type) {
   callCounts_[type] += 1;
 }