title: Android AudioManager setMode() permission Denial
body: <p>I try to setMode(mode_in_call) to change audio mode when I play a media.
  So,i'm sure i add the permission<br>
  
  and i write in code like this:
  AudioManager mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
  mAudioManager.setMode(AudioManager.MODE_IN_CALL);</p>
  
  <p>here is the problem:
  i use Sumsung i9000 i9023 
  it doesn't work,and the log Phone Related Audio Settings Permission Denial: setMode()
  but i try Sony x10 LT15i,it can modify the mode correctly.
  why doesn't this happen.</p>