Extends timer from 10 to 30 seconds for output volume check on Android

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 ab17eece1aa8f8ccc90e575133389707bd6449b0..d94839c8295d686a88700cfa9b36bf172ff2c647 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
@@ -83,11 +83,11 @@ public class WebRtcAudioManager {
 
   // Private utility class that periodically checks and logs the volume level
   // of the audio stream that is currently controlled by the volume control.
-  // A timer triggers logs once every 10 seconds and the timer's associated
+  // A timer triggers logs once every 30 seconds and the timer's associated
   // thread is named "WebRtcVolumeLevelLoggerThread".
   private static class VolumeLogger {
     private static final String THREAD_NAME = "WebRtcVolumeLevelLoggerThread";
-    private static final int TIMER_PERIOD_IN_SECONDS = 10;
+    private static final int TIMER_PERIOD_IN_SECONDS = 30;
 
     private final AudioManager audioManager;
     private Timer timer;