Enables possibility to select full-duplex OpenSL ES audio in AppRTCDemo

webrtc/modules/audio_device/android/java/src/org/webrtc/voiceengine/WebRtcAudioManager.java

Index: webrtc/modules/audio_device/android/java/src/org/webrtc/voiceengine/WebRtcAudioManager.java
diff --git a/webrtc/modules/audio_device/android/java/src/org/webrtc/voiceengine/WebRtcAudioManager.java b/webrtc/modules/audio_device/android/java/src/org/webrtc/voiceengine/WebRtcAudioManager.java
index c1a9fa078221fc8a9cbf4200191403824ee21f12..64c9c7c6f8aeaec27548dae5b32169c2a138209e 100644
--- a/webrtc/modules/audio_device/android/java/src/org/webrtc/voiceengine/WebRtcAudioManager.java
+++ b/webrtc/modules/audio_device/android/java/src/org/webrtc/voiceengine/WebRtcAudioManager.java
@@ -231,8 +231,8 @@ public class WebRtcAudioManager {
     // as well. The NDK doc states that: "As of API level 21, lower latency
     // audio input is supported on select devices. To take advantage of this
     // feature, first confirm that lower latency output is available".
-    return false;
-    // return WebRtcAudioUtils.runningOnLollipopOrHigher() && isLowLatencyOutputSupported();
+    return WebRtcAudioUtils.runningOnLollipopOrHigher() &&
+        isLowLatencyOutputSupported();
   }
 
   // Returns true if the device has professional audio level of functionality