Remove redundant field initialization in Java code.

chrome/android/java/src/org/chromium/chrome/browser/IntentHandler.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.chrome.browser;
 
 import android.app.KeyguardManager;
 import android.app.PendingIntent;
 import android.app.SearchManager;
 import android.content.ComponentName;
@@ skipping 136 matching lines @@
     public static final String EXTRA_EXTERNAL_NAV_PACKAGES = "org.chromium.chrome.browser.eenp";
 
     /**
      * A hash code for the URL to verify intent data hasn't been modified.
      */
     public static final String EXTRA_DATA_HASH_CODE = "org.chromium.chrome.browser.data_hash";
 
     /**
      * Fake ComponentName used in constructing TRUSTED_APPLICATION_CODE_EXTRA.
      */
-    private static ComponentName sFakeComponentName = null;
+    private static ComponentName sFakeComponentName;
 
     private static final Object LOCK = new Object();
 
     private static Pair<Integer, String> sPendingReferrer;
     private static int sReferrerId;
     private static String sPendingIncognitoUrl;
 
     private static final String PACKAGE_GSA = "com.google.android.googlequicksearchbox";
     private static final String PACKAGE_GMAIL = "com.google.android.gm";
     private static final String PACKAGE_PLUS = "com.google.android.apps.plus";
@@ skipping 810 matching lines @@
         if (transitionType == PageTransition.TYPED) {
             return transitionType;
         } else if (transitionType != PageTransition.LINK
                 && isIntentChromeOrFirstParty(intent, context)) {
             // 1st party applications may specify any transition type.
             return transitionType;
         }
         return defaultTransition;
     }
 }