Use audio_source_t consistently

Use audio_source_t instead of int.

Change-Id: I88256ee508b8f5b50635985361efa7c458f11296
diff --git a/src/android/AudioRecorder_to_android.cpp b/src/android/AudioRecorder_to_android.cpp
index 0012fa9..16566c0 100644
--- a/src/android/AudioRecorder_to_android.cpp
+++ b/src/android/AudioRecorder_to_android.cpp
@@ -39,7 +39,7 @@
 SLresult audioRecorder_setPreset(CAudioRecorder* ar, SLuint32 recordPreset) {
     SLresult result = SL_RESULT_SUCCESS;
 
-    int newRecordSource = AUDIO_SOURCE_DEFAULT;
+    audio_source_t newRecordSource = AUDIO_SOURCE_DEFAULT;
     switch (recordPreset) {
     case SL_ANDROID_RECORDING_PRESET_GENERIC:
         newRecordSource = AUDIO_SOURCE_DEFAULT;
diff --git a/src/classes.h b/src/classes.h
index 7fae631..5ccbbae 100644
--- a/src/classes.h
+++ b/src/classes.h
@@ -149,7 +149,7 @@
 #ifdef ANDROID
     enum AndroidObjectType mAndroidObjType;
     android::AudioRecord *mAudioRecord; //FIXME candidate to be encapsulated in a ARecorder subclass
-    int mRecordSource;                  //FIXME candidate to be encapsulated in a ARecorder subclass
+    audio_source_t mRecordSource;       //FIXME candidate to be encapsulated in a ARecorder subclass
 #endif
 } /*CAudioRecorder*/;