Remove redundant field initialization in Java code.

chrome/android/java/src/org/chromium/chrome/browser/pageinfo/WebsiteSettingsPopup.java

 // Copyright 2013 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.chrome.browser.pageinfo;
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.AnimatorSet;
 import android.animation.ObjectAnimator;
@@ skipping 119 matching lines @@
 
         // The number of lines to display when the URL is expanded. This should be enough to display
         // at most two lines of the fragment if there is one in the URL.
         private Integer mFullLinesToDisplay;
 
         // If true, the text view will show the truncated text. If false, it
         // will show the full, expanded text.
         private boolean mIsShowingTruncatedText = true;
 
         // The profile to use when getting the end index for the origin.
-        private Profile mProfile = null;
+        private Profile mProfile;
 
         // The maximum number of lines currently shown in the view
         private int mCurrentMaxLines = Integer.MAX_VALUE;
 
         /** Constructor for inflating from XML. */
         public ElidedUrlTextView(Context context, AttributeSet attrs) {
             super(context, attrs);
         }
 
         @Override
@@ skipping 108 matching lines @@
     private final TextView mConnectionMessage;
     private final LinearLayout mPermissionsList;
     private final Button mInstantAppButton;
     private final Button mSiteSettingsButton;
     private final Button mOpenOnlineButton;
 
     // The dialog the container is placed in.
     private final Dialog mDialog;
 
     // Animation which is currently running, if there is one.
-    private AnimatorSet mCurrentAnimation = null;
+    private AnimatorSet mCurrentAnimation;
 
     private boolean mDismissWithoutAnimation;
 
     // The full URL from the URL bar, which is copied to the user's clipboard when they select 'Copy
     // URL'.
     private String mFullUrl;
 
     // A parsed version of mFullUrl. Is null if the URL is invalid/cannot be
     // parsed.
     private URI mParsedUrl;
@@ skipping 665 matching lines @@
         new WebsiteSettingsPopup(activity, tab, offlinePageCreationDate, contentPublisher);
     }
 
     private static native long nativeInit(WebsiteSettingsPopup popup, WebContents webContents);
 
     private native void nativeDestroy(long nativeWebsiteSettingsPopupAndroid);
 
     private native void nativeRecordWebsiteSettingsAction(
             long nativeWebsiteSettingsPopupAndroid, int action);
 }