Fix some warnings in Eclipse

java/org/chromium/distiller/PageParameterDetector.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.distiller;
 
 import com.google.gwt.regexp.shared.MatchResult;
 import com.google.gwt.regexp.shared.RegExp;
 
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
 
 /**
  * Background:
  *   The long article/news/forum thread/blog document may be partitioned into several partial pages
@@ skipping 452 matching lines @@
         sBadPageParamNames.add("subscriptions");
         sBadPageParamNames.add("tag");
         sBadPageParamNames.add("tags");
         sBadPageParamNames.add("video");
         sBadPageParamNames.add("videos");
         sBadPageParamNames.add("w");
         sBadPageParamNames.add("wiki");
     }
 
 }