1/*
2 * Copyright (C) 2011 Ericsson AB. All rights reserved.
3 * Copyright (C) 2012 Google Inc. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer
13 *    in the documentation and/or other materials provided with the
14 *    distribution.
15 * 3. Neither the name of Ericsson nor the names of its contributors
16 *    may be used to endorse or promote products derived from this
17 *    software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include "config.h"
33
34#if ENABLE(MEDIA_STREAM)
35
36#include "MediaStreamCenter.h"
37
38#include "MediaStreamPrivate.h"
39
40namespace WebCore {
41
42static MediaStreamCenter*& mediaStreamCenterOverride()
43{
44    static MediaStreamCenter* override;
45    return override;
46}
47
48MediaStreamCenter& MediaStreamCenter::shared()
49{
50    MediaStreamCenter* override = mediaStreamCenterOverride();
51    if (override)
52        return *override;
53
54    return MediaStreamCenter::platformCenter();
55}
56
57void MediaStreamCenter::setSharedStreamCenter(MediaStreamCenter* center)
58{
59    mediaStreamCenterOverride() = center;
60}
61
62MediaStreamCenter::MediaStreamCenter()
63{
64}
65
66MediaStreamCenter::~MediaStreamCenter()
67{
68}
69
70} // namespace WebCore
71
72#endif // ENABLE(MEDIA_STREAM)
73