Revert 191287 "Revert 189210 "Add MODIFY_AUDIO_SETTINGS permissi..."

Revert 191287 "Revert 189210 "Add MODIFY_AUDIO_SETTINGS permissi..."

The workaround has been landed (https://src.chromium.org/viewvc/chrome?view=rev&revision=192248) and will be merged into M27. Reland the original patch.

> Revert 189210 "Add MODIFY_AUDIO_SETTINGS permission in Android m..."
> 
> It needs bluetooth permission on some devices.
> 
> > Add MODIFY_AUDIO_SETTINGS permission in Android manifest and implementation in android audio manager.
> > 
> > MODIFY_AUDIO_SETTINGS allows application to be able to configure audio settings.
> > 
> > In android audio manager, a function SetAudioMode is added to set audio mode.
> > 
> > BUG=180328
> > 
> > Contributed by leozwang@chromium.org (https://codereview.chromium.org/12571006/).
> > Review URL: https://codereview.chromium.org/12843015
> 
> TBR=wjia@chromium.org
> Review URL: https://codereview.chromium.org/13290002

TBR=wjia@chromium.org
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=192369

[wjia(left Chromium), 2013-04-04 18:16:06]

Committed patchset #1 manually as r192369.