Add unittests for net::TestRootCerts and regenerate test certificates

net/android/javatests/src/org/chromium/net/X509UtilTest.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.net;
 
 import android.content.Context;
 import android.content.Intent;
 import android.net.ConnectivityManager;
 import android.telephony.TelephonyManager;
@@ skipping 18 matching lines @@
  * Tests for org.chromium.net.X509Util.
  */
 public class X509UtilTest extends InstrumentationTestCase {
     private static final String CERTS_DIRECTORY =
         PathUtils.getExternalStorageDirectory() + "/net/data/ssl/certificates/";
     private static final String BAD_EKU_TEST_ROOT = "eku-test-root.pem";
     private static final String CRITICAL_CODE_SIGNING_EE = "crit-codeSigning-chain.pem";
     private static final String NON_CRITICAL_CODE_SIGNING_EE = "non-crit-codeSigning-chain.pem";
     private static final String WEB_CLIENT_AUTH_EE = "invalid_key_usage_cert.der";
     private static final String OK_CERT = "ok_cert.pem";
-    private static final String GOOD_ROOT_CA = "root_ca_cert.crt";
+    private static final String GOOD_ROOT_CA = "root_ca_cert.pem";
 
     private static final String BEGIN_MARKER = "-----BEGIN CERTIFICATE-----";
     private static final String END_MARKER = "-----END CERTIFICATE-----";
 
     private static byte[] pemToDer(String pemPathname) throws IOException {
         BufferedReader reader = new BufferedReader(new FileReader(pemPathname));
         StringBuilder builder = new StringBuilder();
 
         // Skip past leading junk lines, if any.
         String line = reader.readLine();
@@ skipping 43 matching lines @@
                 pemToDer(CERTS_DIRECTORY + OK_CERT))));
 
         try {
             X509Util.clearTestRootCertificates();
         } catch (Exception e) {
             fail("Could not clear test root certificates: " + e.toString());
         }
     }
 }