pause cmd behaves like audiofocus loss

when fm audio is routed to a2dp, then video is started
to play. fm will receive pause cmd, and call fmOperationsOff,
then call resetAudioRoute(). audio output will be changed to
wired headset. We should keep audio route unchanged.

Change-Id: I42a15fea24ed26bfe7460a4611bca1a7620de4e1
CRs-Fixed: 1109351

fmapp2/src/com/caf/fmradio/FMRadioService.java

@@ -742,8 +742,10 @@ public class FMRadioService extends Service
                         Log.d(LOGTAG, "Music Service command : "+cmd+ " received");
                         if (cmd != null && cmd.equals("pause")) {
                             if (isFmOn()) {
-                                fmOperationsOff();
-                                mStoppedOnFocusLoss = true;
+                                AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
+                                audioManager.abandonAudioFocus(mAudioFocusListener);
+                                mDelayedStopHandler.obtainMessage(FOCUSCHANGE, AudioManager.AUDIOFOCUS_LOSS, 0).sendToTarget();
+
                                 if (isOrderedBroadcast()) {
                                     abortBroadcast();
                                 }