Remove redundant field initialization in Java code.

content/public/android/java/src/org/chromium/content/browser/AudioFocusDelegate.java

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.content.browser;
 
 import android.content.Context;
 import android.media.AudioManager;
 
 import org.chromium.base.Log;
@@ skipping 11 matching lines @@
  * counterpart and will resume its play using the same type if it were to
  * happen, for example, when it got temporarily suspended by a transient sound
  * like a notification.
  */
 @JNINamespace("content")
 public class AudioFocusDelegate implements AudioManager.OnAudioFocusChangeListener {
     private static final String TAG = "MediaSession";
 
     private Context mContext;
     private int mFocusType;
-    private boolean mIsDucking = false;
+    private boolean mIsDucking;
 
     // Native pointer to C++ content::AudioFocusDelegateAndroid.
     // It will be set to 0 when the native AudioFocusDelegateAndroid object is destroyed.
     private long mNativeAudioFocusDelegateAndroid;
 
     private AudioFocusDelegate(final Context context, long nativeAudioFocusDelegateAndroid) {
         mContext = context;
         mNativeAudioFocusDelegateAndroid = nativeAudioFocusDelegateAndroid;
     }
 
@@ skipping 63 matching lines @@
                 break;
         }
     }
 
     private native void nativeOnSuspend(long nativeAudioFocusDelegateAndroid, boolean temporary);
     private native void nativeOnResume(long nativeAudioFocusDelegateAndroid);
     private native void nativeOnStartDucking(long nativeAudioFocusDelegateAndroid);
     private native void nativeOnStopDucking(long nativeAudioFocusDelegateAndroid);
     private native void nativeRecordSessionDuck(long nativeAudioFocusDelegateAndroid);
 }