dom/media/mediacontrol/MediaControlUtils.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "MediaControlUtils.h"
   8
   9 #include "mozilla/dom/BrowsingContext.h"
  10
  11 mozilla::LazyLogModule gMediaControlLog("MediaControl");
  12
  13 namespace mozilla::dom {
  14
  15 BrowsingContext* GetAliveTopBrowsingContext(BrowsingContext* aBC) {
  16   if (!aBC || aBC->IsDiscarded()) {
  17     return nullptr;
  18   }
  19   aBC = aBC->Top();
  20   if (!aBC || aBC->IsDiscarded()) {
  21     return nullptr;
  22   }
  23   return aBC;
  24 }
  25
  26 }  // namespace mozilla::dom