1// Copyright 2014 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5// Use the <code>chrome.power</code> API to override the system's power
6// management features.
7namespace power {
8  [noinline_doc] enum Level {
9    // Prevent the system from sleeping in response to user inactivity.
10    system,
11
12    // Prevent the display from being turned off or dimmed or the system
13    // from sleeping in response to user inactivity.
14    display
15  };
16
17  interface Functions {
18    // Requests that power management be temporarily disabled. |level|
19    // describes the degree to which power management should be disabled.
20    // If a request previously made by the same app is still active, it
21    // will be replaced by the new request.
22    static void requestKeepAwake(Level level);
23
24    // Releases a request previously made via requestKeepAwake().
25    static void releaseKeepAwake();
26  };
27};
28