Implement the rest of the audio API.

Picking up where https://codereview.chromium.org/13486004/ left off, implemented the setProperties and setActiveDevices calls; also fixed GetNodes to also return the volume of the devices.

R=hshi@chromium.org, jennyz@chromium.org, mpcomplete@chromium.org
BUG=175798
TEST=Wrote a test extension to set the volume on the active and inactive devices, to verify they were set correctly. Also wrote code to switch active devices to verify that the devices did switch.

Review URL: https://codereview.chromium.org/14652027

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@198556 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 8 insertions, 0 deletions

diff --git a/ash/system/chromeos/audio/tray_audio.cc b/ash/system/chromeos/audio/tray_audio.cc
index 246b082..02daa87 100644
--- a/ash/system/chromeos/audio/tray_audio.cc
+++ b/ash/system/chromeos/audio/tray_audio.cc
@@ -596,6 +596,12 @@ void TrayAudio::OnOutputMuteChanged() {
   }
 }
 
+void TrayAudio::OnInputGainChanged() {
+}
+
+void TrayAudio::OnInputMuteChanged() {
+}
+
 void TrayAudio::OnAudioNodesChanged() {
   Update();
 }
diff --git a/ash/system/chromeos/audio/tray_audio.h b/ash/system/chromeos/audio/tray_audio.h
index af8f7a9..da08219 100644
--- a/ash/system/chromeos/audio/tray_audio.h
+++ b/ash/system/chromeos/audio/tray_audio.h
@@ -43,6 +43,8 @@ class TrayAudio : public TrayImageItem,
   // Overridden from chromeos::CrasAudioHandler::AudioObserver.
   virtual void OnOutputVolumeChanged() OVERRIDE;
   virtual void OnOutputMuteChanged() OVERRIDE;
+  virtual void OnInputGainChanged() OVERRIDE;
+  virtual void OnInputMuteChanged() OVERRIDE;
   virtual void OnAudioNodesChanged() OVERRIDE;
   virtual void OnActiveOutputNodeChanged() OVERRIDE;
   virtual void OnActiveInputNodeChanged() OVERRIDE;