Extract Notifications kClickWasNotAnAction constant

content/common/notification_constants.h

Index: content/common/notification_constants.h
diff --git a/content/common/notification_constants.h b/content/common/notification_constants.h
deleted file mode 100644
index 7b3f4f1a30c763dba3963e281eb473cee7583068..0000000000000000000000000000000000000000
--- a/content/common/notification_constants.h
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright 2015 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 CONTENT_COMMON_NOTIFICATION_CONSTANTS_H_
-#define CONTENT_COMMON_NOTIFICATION_CONSTANTS_H_
-
-namespace content {
-
-// Maximum number of actions on a Platform Notification.
-static const size_t kPlatformNotificationMaxActions = 2;
-
-}  // namespace content
-
-#endif  // CONTENT_COMMON_NOTIFICATION_CONSTANTS_H_