Resolve lint warnings related to DefaultLocale and SimpleDateFormat

chrome/android/java/src/org/chromium/chrome/browser/preferences/autofill/AutofillCreditCardEditor.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.chrome.browser.preferences.autofill;
 
 import android.app.Fragment;
 import android.os.Bundle;
 import android.text.Editable;
 import android.text.TextUtils;
 import android.text.TextWatcher;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.AdapterView;
 import android.widget.AdapterView.OnItemSelectedListener;
 import android.widget.ArrayAdapter;
 import android.widget.Button;
 import android.widget.EditText;
 import android.widget.Spinner;
 
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.autofill.PersonalDataManager;
 import org.chromium.chrome.browser.autofill.PersonalDataManager.CreditCard;
 
 import java.text.SimpleDateFormat;
 import java.util.Calendar;
+import java.util.Locale;
 
 /**
  * Provides the Java-ui for editing a Credit Card autofill entry.
  */
 public class AutofillCreditCardEditor extends Fragment implements OnItemSelectedListener,
         TextWatcher {
     // GUID of the profile we are editing.
     // May be the empty string if creating a new profile.
     private String mGUID;
 
@@ skipping 68 matching lines @@
     @Override
     public void onTextChanged(CharSequence s, int start, int before, int count) {
         enableSaveButton();
     }
 
     void addSpinnerAdapters() {
         ArrayAdapter<CharSequence> adapter = new ArrayAdapter<CharSequence>(getActivity(),
                 android.R.layout.simple_spinner_item);
 
         Calendar calendar = Calendar.getInstance();
-        SimpleDateFormat formatter = new SimpleDateFormat("MMMM (MM)");
+        SimpleDateFormat formatter = new SimpleDateFormat("MMMM (MM)", Locale.getDefault());
 
         for (int month = 0; month < 12; month++) {
             calendar.set(Calendar.MONTH, month);
             adapter.add(formatter.format(calendar.getTime()));
         }
         adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
         mExpirationMonth.setAdapter(adapter);
 
         adapter = new ArrayAdapter<CharSequence>(getActivity(),
                 android.R.layout.simple_spinner_item);
@@ skipping 192 matching lines @@
             }
         }
 
         public static boolean hasDashOrSpace(final CharSequence s, final int start,
                 final int count) {
             return TextUtils.indexOf(s, " ", start, start + count) != -1
                     || TextUtils.indexOf(s, "-", start, start + count) != -1;
         }
     }
 }