Remove redundant field initialization in Java code.

media/capture/video/android/java/src/org/chromium/media/VideoCaptureCamera2.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.annotation.TargetApi;
 import android.content.Context;
 import android.graphics.ImageFormat;
 import android.graphics.Rect;
@@ skipping 240 matching lines @@
         COLOR_TEMPERATURES_MAP.append(7000, CameraMetadata.CONTROL_AWB_MODE_SHADE);
     };
 
     private static enum CameraState { OPENING, CONFIGURING, STARTED, STOPPED }
 
     private final Object mCameraStateLock = new Object();
 
     private CameraDevice mCameraDevice;
     private CameraCaptureSession mPreviewSession;
     private CaptureRequest mPreviewRequest;
-    private Handler mMainHandler = null;
+    private Handler mMainHandler;
 
     private CameraState mCameraState = CameraState.STOPPED;
     private final float mMaxZoom;
     private Rect mCropRect = new Rect();
-    private int mPhotoWidth = 0;
-    private int mPhotoHeight = 0;
+    private int mPhotoWidth;
+    private int mPhotoHeight;
     private int mFocusMode = AndroidMeteringMode.CONTINUOUS;
     private int mExposureMode = AndroidMeteringMode.CONTINUOUS;
     private MeteringRectangle mAreaOfInterest;
-    private int mExposureCompensation = 0;
+    private int mExposureCompensation;
     private int mWhiteBalanceMode = AndroidMeteringMode.CONTINUOUS;
     private int mColorTemperature = -1;
-    private int mIso = 0;
-    private boolean mRedEyeReduction = false;
+    private int mIso;
+    private boolean mRedEyeReduction;
     private int mFillLightMode = AndroidFillLightMode.OFF;
 
     // Service function to grab CameraCharacteristics and handle exceptions.
     private static CameraCharacteristics getCameraCharacteristics(Context appContext, int id) {
         final CameraManager manager =
                 (CameraManager) appContext.getSystemService(Context.CAMERA_SERVICE);
         try {
             return manager.getCameraCharacteristics(Integer.toString(id));
         } catch (CameraAccessException ex) {
             Log.e(TAG, "getCameraCharacteristics: ", ex);
@@ skipping 659 matching lines @@
             return false;
         }
         return true;
     }
 
     @Override
     public void deallocate() {
         Log.d(TAG, "deallocate");
     }
 }