Remove redundant field initialization in Java code.

media/capture/video/android/java/src/org/chromium/media/VideoCapture.java

 // Copyright 2014 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.media;
 
 import android.content.Context;
 import android.graphics.ImageFormat;
 import android.view.Surface;
 import android.view.WindowManager;
@@ skipping 10 matching lines @@
  **/
 @JNINamespace("media")
 public abstract class VideoCapture {
     // The angle (0, 90, 180, 270) that the image needs to be rotated to show in
     // the display's native orientation.
     protected int mCameraNativeOrientation;
     // In some occasions we need to invert the device rotation readings, see the
     // individual implementations.
     protected boolean mInvertDeviceOrientationReadings;
 
-    protected VideoCaptureFormat mCaptureFormat = null;
+    protected VideoCaptureFormat mCaptureFormat;
     protected final Context mContext;
     protected final int mId;
     // Native callback context variable.
     protected final long mNativeVideoCaptureDeviceAndroid;
 
-    protected boolean mUseBackgroundThreadForTesting = false;
+    protected boolean mUseBackgroundThreadForTesting;
 
     VideoCapture(Context context, int id, long nativeVideoCaptureDeviceAndroid) {
         mContext = context;
         mId = id;
         mNativeVideoCaptureDeviceAndroid = nativeVideoCaptureDeviceAndroid;
     }
 
     // Allocate necessary resources for capture.
     @CalledByNative
     public abstract boolean allocate(int width, int height, int frameRate);
@@ skipping 108 matching lines @@
             int uvRowStride, int uvPixelStride, int width, int height, int rotation,
             long timestamp);
 
     // Method for VideoCapture implementations to signal an asynchronous error.
     public native void nativeOnError(long nativeVideoCaptureDeviceAndroid, String message);
 
     // Method for VideoCapture implementations to send Photos back to.
     public native void nativeOnPhotoTaken(
             long nativeVideoCaptureDeviceAndroid, long callbackId, byte[] data);
 }