Revert 251959 "Refactor the TrayAudio code so that it can be use..."

Reverted due to memory leaks:
http://build.chromium.org/p/chromium.memory/builders/Linux%20Chromium%20OS%20ASAN%20Tests%20%281%29/builds/15922

> Refactor the TrayAudio code so that it can be used by other platforms.
> The motivation here is to introduce the volume slider tray UI into
> Windows Ash.
> 
> This change does not actually add tray audio UI to other platforms,
> only moves some non-chromeos specific things out of the chromeos
> platform folders, so that we can hook in the native Audio APIs
> of other platforms to the tray UI.
> 
> At a high level, this change does the following:
> 
> 1) Move tray_audio out of chromeos/ so that other platforms can
> use the UI that it provides.
> 2) Decouples TrayAudio from CrasAudioHandler by introducing a
> new delegate, in a similar vein to what is done with all the other
> handlers (e.g. the BluetoothHandler)
> 3) Move the additional views (VolumeView, etc) to their own files
> so they can be used by other platforms as well.
> 
> TEST=
>  On CrOS physical device, verified that:
>  1) Keyboard volume buttons function appropriately and display the
>     volume view
>  2) AudioDetailView still is accessible at the correct times
>  3) Adjusting the volume (via the keyboard shortcuts or via the
>     slider) correctly change the output volume.
>  4) UI still behaves correctly (e.g. icons update as the volume
>     changes, mute button works, etc).
> 
> BUG=227247
> 
> Review URL: https://codereview.chromium.org/163953007

TBR=zturner@chromium.org

Review URL: https://codereview.chromium.org/170843009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@252009 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 0 insertions, 7 deletions

diff --git a/chromeos/audio/cras_audio_handler.cc b/chromeos/audio/cras_audio_handler.cc
index fd2d92e..0045f84 100644
--- a/chromeos/audio/cras_audio_handler.cc
+++ b/chromeos/audio/cras_audio_handler.cc
@@ -130,10 +130,6 @@ bool CrasAudioHandler::IsInputMutedForDevice(uint64 device_id) {
   return audio_pref_handler_->GetMuteValue(*device);
 }
 
-int CrasAudioHandler::GetOutputDefaultVolumeMuteThreshold() {
-  return kMuteThresholdPercent;
-}
-
 int CrasAudioHandler::GetOutputVolumePercent() {
   return output_volume_;
 }
diff --git a/chromeos/audio/cras_audio_handler.h b/chromeos/audio/cras_audio_handler.h
index cc28c50..f2a35a5 100644
--- a/chromeos/audio/cras_audio_handler.h
+++ b/chromeos/audio/cras_audio_handler.h
@@ -99,9 +99,6 @@ class CHROMEOS_EXPORT CrasAudioHandler : public CrasAudioClient::Observer,
   // Returns true if the output volume is below the default mute volume level.
   virtual bool IsOutputVolumeBelowDefaultMuteLvel();
 
-  // Returns volume level in 0-100% range at which the volume should be muted.
-  virtual int GetOutputDefaultVolumeMuteThreshold();
-
   // Gets volume level in 0-100% range (0 being pure silence) for the current
   // active node.
   virtual int GetOutputVolumePercent();