Full Implementation of Audio for the Chrome Os Device Emulator

chromeos/dbus/fake_cras_audio_client.h

 // Copyright (c) 2013 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.
 
 #ifndef CHROMEOS_DBUS_FAKE_CRAS_AUDIO_CLIENT_H_
 #define CHROMEOS_DBUS_FAKE_CRAS_AUDIO_CLIENT_H_
 
 #include "chromeos/chromeos_export.h"
 #include "chromeos/dbus/cras_audio_client.h"
 
@@ skipping 20 matching lines @@
   void SetInputNodeGain(uint64 node_id, int32 gain) override;
   void SetInputMute(bool mute_on) override;
   void SetActiveOutputNode(uint64 node_id) override;
   void SetActiveInputNode(uint64 node_id) override;
   void AddActiveInputNode(uint64 node_id) override;
   void RemoveActiveInputNode(uint64 node_id) override;
   void AddActiveOutputNode(uint64 node_id) override;
   void RemoveActiveOutputNode(uint64 node_id) override;
   void SwapLeftRight(uint64 node_id, bool swap) override;
 
+  // Modifies an AudioNode from |node_list_| based on |audio_node.id|.
+  // if the |audio_node.id| cannot be found in list, Add an
+  // AudioNode to |node_list_|
+  void InsertAudioNodeToList(const AudioNode& audio_node);
+
+  // Removes an AudioNode from |node_list_| based on |node_id|.
+  void RemoveAudioNodeFromList(const uint64& node_id);
+
   // Updates |node_list_| to contain |audio_nodes|.
   void SetAudioNodesForTesting(const AudioNodeList& audio_nodes);
 
   // Calls SetAudioNodesForTesting() and additionally notifies |observers_|.
   void SetAudioNodesAndNotifyObserversForTesting(
       const AudioNodeList& new_nodes);
 
+  const AudioNodeList& node_list() const { return node_list_; }
+  const uint64& active_input_node_id() const { return active_input_node_id_; }
+  const uint64& active_output_node_id() const { return active_output_node_id_; }
+
  private:
+  // Find a node in the list based on the id.
+  AudioNodeList::iterator FindNode(uint64 node_id);
+
   VolumeState volume_state_;
   AudioNodeList node_list_;
   uint64 active_input_node_id_;
   uint64 active_output_node_id_;
   base::ObserverList<Observer> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeCrasAudioClient);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_DBUS_FAKE_CRAS_AUDIO_CLIENT_H_