Make AudioParameters a class instead of a struct

media/audio/audio_input_controller.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_input_controller.h"
 
 #include "base/bind.h"
 #include "base/threading/thread_restrictions.h"
 #include "media/base/limits.h"
 
@@ skipping 25 matching lines @@
   DCHECK(kClosed == state_ || kCreated == state_ || kEmpty == state_);
 }
 
 // static
 scoped_refptr<AudioInputController> AudioInputController::Create(
     AudioManager* audio_manager,
     EventHandler* event_handler,
     const AudioParameters& params) {
   DCHECK(audio_manager);
 
-  if (!params.IsValid() || (params.channels > kMaxInputChannels))
+  if (!params.IsValid() || (params.channels() > kMaxInputChannels))
     return NULL;
 
   if (factory_)
     return factory_->Create(audio_manager, event_handler, params);
 
   scoped_refptr<AudioInputController> controller(new AudioInputController(
       event_handler, NULL));
 
   controller->message_loop_ = audio_manager->GetMessageLoop();
 
@@ skipping 12 matching lines @@
 // static
 scoped_refptr<AudioInputController> AudioInputController::CreateLowLatency(
     AudioManager* audio_manager,
     EventHandler* event_handler,
     const AudioParameters& params,
     const std::string& device_id,
     SyncWriter* sync_writer) {
   DCHECK(audio_manager);
   DCHECK(sync_writer);
 
-  if (!params.IsValid() || (params.channels > kMaxInputChannels))
+  if (!params.IsValid() || (params.channels() > kMaxInputChannels))
     return NULL;
 
   // Create the AudioInputController object and ensure that it runs on
   // the audio-manager thread.
   scoped_refptr<AudioInputController> controller(new AudioInputController(
       event_handler, sync_writer));
   controller->message_loop_ = audio_manager->GetMessageLoop();
 
   // Create and open a new audio input stream from the existing
   // audio-device thread. Use the provided audio-input device.
@@ skipping 139 matching lines @@
     stream_->Close();
     stream_ = NULL;
   }
 
   // Should be last in the method, do not touch "this" from here on.
   if (done != NULL)
     done->Signal();
 }
 
 }  // namespace media