content/browser/media/audio_state_provider.cc

   1 // Copyright 2015 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 #include "content/browser/media/audio_state_provider.h"
   6
   7 #include "base/logging.h"
   8 #include "content/browser/media/audio_stream_monitor.h"
   9 #include "content/public/browser/web_contents.h"
  10
  11 namespace content {
  12
  13 AudioStateProvider::AudioStateProvider(WebContents* contents)
  14     : web_contents_(contents),
  15       was_recently_audible_(false) {
  16   DCHECK(web_contents_);
  17 }
  18
  19 bool AudioStateProvider::WasRecentlyAudible() const {
  20   return was_recently_audible_;
  21 }
  22
  23 void AudioStateProvider::Notify(bool new_state) {
  24   if (was_recently_audible_ != new_state) {
  25     was_recently_audible_ = new_state;
  26     web_contents_->NotifyNavigationStateChanged(INVALIDATE_TYPE_TAB);
  27   }
  28 }
  29
  30 } // namespace content