Move the notification constants to Blink

content/common/notification_constants.h

-// 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_
-
-#include <stddef.h>
-
-namespace content {
-
-// Maximum number of actions on a Platform Notification.
-static const size_t kPlatformNotificationMaxActions = 2;
-
-// The maximum reasonable notification icon size, scaled from dip units to
-// pixels using the largest supported scaling factor.
-static const int kPlatformNotificationMaxIconSizePx = 320;  // 80 dip * 4
-
-// The maximum reasonable badge size, scaled from dip units to pixels using the
-// largest supported scaling factor.
-static const int kPlatformNotificationMaxBadgeSizePx = 96;  // 24 dip * 4
-
-// The maximum reasonable action icon size, scaled from dip units to
-// pixels using the largest supported scaling factor.
-static const int kPlatformNotificationMaxActionIconSizePx = 128;  // 32 dip * 4
-
-}  // namespace content
-
-#endif  // CONTENT_COMMON_NOTIFICATION_CONSTANTS_H_