Remove ENABLE_MESSAGE_CENTER

ui/message_center/message_center_util.h

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_MESSAGE_CENTER_MESSAGE_CENTER_UTIL_H_
 #define UI_MESSAGE_CENTER_MESSAGE_CENTER_UTIL_H_
 
 #include "ui/message_center/message_center_export.h"
 
 namespace message_center {
 
 MESSAGE_CENTER_EXPORT bool IsRichNotificationEnabled();
 
+#define SKIP_THIS_TEST_IF_MESSAGE_CENTER_DISABLED()                         \
+  if (!message_center::IsRichNotificationEnabled()) {                       \
+    LOG(INFO) << "Test is skiped because Rich Notifications are disabled."; \
+    return;                                                                 \
+  }
+
 }  // namespace message_center
 
 #endif  // UI_MESSAGE_CENTER_MESSAGE_CENTER_UTIL_H_