Remove stream type from AudioSystem::getRenderPosition()

The I/O handle is never equal to AUDIO_IO_HANDLE_NONE,
so the stream type is not needed.

Change-Id: I1ab134a2fa379d6dd0b6167345a856a192d478f9
diff --git a/include/media/AudioSystem.h b/include/media/AudioSystem.h
index 28fdfd4..a09967b 100644
--- a/include/media/AudioSystem.h
+++ b/include/media/AudioSystem.h
@@ -125,8 +125,7 @@
     static status_t setVoiceVolume(float volume);
 
     // return the number of audio frames written by AudioFlinger to audio HAL and
-    // audio dsp to DAC since the output on which the specified stream is playing
-    // has exited standby.
+    // audio dsp to DAC since the specified output I/O handle has exited standby.
     // returned status (from utils/Errors.h) can be:
     // - NO_ERROR: successful operation, halFrames and dspFrames point to valid data
     // - INVALID_OPERATION: Not supported on current hardware platform
@@ -135,8 +134,7 @@
     // necessary to check returned status before using the returned values.
     static status_t getRenderPosition(audio_io_handle_t output,
                                       uint32_t *halFrames,
-                                      uint32_t *dspFrames,
-                                      audio_stream_type_t stream = AUDIO_STREAM_DEFAULT);
+                                      uint32_t *dspFrames);
 
     // return the number of input frames lost by HAL implementation, or 0 if the handle is invalid
     static uint32_t getInputFramesLost(audio_io_handle_t ioHandle);
diff --git a/media/libmedia/AudioSystem.cpp b/media/libmedia/AudioSystem.cpp
index 140fb66..ac93a3a 100644
--- a/media/libmedia/AudioSystem.cpp
+++ b/media/libmedia/AudioSystem.cpp
@@ -401,19 +401,11 @@
 }
 
 status_t AudioSystem::getRenderPosition(audio_io_handle_t output, uint32_t *halFrames,
-                                        uint32_t *dspFrames, audio_stream_type_t stream)
+                                        uint32_t *dspFrames)
 {
     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
     if (af == 0) return PERMISSION_DENIED;
 
-    if (stream == AUDIO_STREAM_DEFAULT) {
-        stream = AUDIO_STREAM_MUSIC;
-    }
-
-    if (output == 0) {
-        output = getOutput(stream);
-    }
-
     return af->getRenderPosition(halFrames, dspFrames, output);
 }