Make AudioParameters a class instead of a struct

media/audio/audio_output_dispatcher.cc

 // Copyright (c) 2012 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.
 
 #include "media/audio/audio_output_dispatcher.h"
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/message_loop.h"
 #include "base/time.h"
 #include "media/audio/audio_io.h"
 
 AudioOutputDispatcher::AudioOutputDispatcher(
     AudioManager* audio_manager, const AudioParameters& params,
     base::TimeDelta close_delay)
     : audio_manager_(audio_manager),
       message_loop_(MessageLoop::current()),
       params_(params),
       pause_delay_(base::TimeDelta::FromMilliseconds(
-          2 * params.samples_per_packet *
-          base::Time::kMillisecondsPerSecond / params.sample_rate)),
+          2 * params.frames_per_buffer() *
+          base::Time::kMillisecondsPerSecond / params.sample_rate())),
       paused_proxies_(0),
       ALLOW_THIS_IN_INITIALIZER_LIST(weak_this_(this)),
       close_timer_(FROM_HERE,
           close_delay,
           weak_this_.GetWeakPtr(),
           &AudioOutputDispatcher::ClosePendingStreams) {
   // We expect to be instantiated on the audio thread.  Otherwise the
   // message_loop_ member will point to the wrong message loop!
   DCHECK(audio_manager->GetMessageLoop()->BelongsToCurrentThread());
 }
@@ skipping 129 matching lines @@
 
 // This method is called by |close_timer_|.
 void AudioOutputDispatcher::ClosePendingStreams() {
   DCHECK_EQ(MessageLoop::current(), message_loop_);
 
   while (!idle_streams_.empty()) {
     idle_streams_.back()->Close();
     idle_streams_.pop_back();
   }
 }