implement validations of pagination URLs

java/org/chromium/distiller/PageParamInfo.java

-// Copyright 2016 The Chromium Authors. All rights reserved.
+// 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 java.util.ArrayList;
 import java.util.List;
 
 /**
  * This class stores information about the page parameter detected from potential pagination URLs
@@ skipping 108 matching lines @@
        String str = new String("Type: " + mType + "\nPageInfo: " + mAllPageInfo.size());
        for (PageInfo page : mAllPageInfo) {
            str += "\n  " + page.toString();
        }
        str += "\nsinglePageUrl: " + mSinglePageUrl +
                "\nformula: " + (mFormula == null ? "null" : mFormula.toString());
        return str;
     }
 
 }