[Cronet] Continue UrlRequest with NULL certificate if Client cert is requested.

components/cronet/android/test/src/org/chromium/net/MockUrlRequestJobFactory.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.net;
 
 import static junit.framework.Assert.assertTrue;
 
 import org.chromium.base.annotations.JNINamespace;
 import org.chromium.net.test.FailurePhase;
@@ skipping 16 matching lines @@
      * @param phase at which request fails. It should be a value in
      *              org.chromium.net.test.FailurePhase.
      * @param netError reported by UrlRequestJob. Passing -1, results in hang.
      */
     public static String getMockUrlWithFailure(int phase, int netError) {
         assertTrue(netError < 0);
         switch (phase) {
             case FailurePhase.START:
             case FailurePhase.READ_SYNC:
             case FailurePhase.READ_ASYNC:
+            case FailurePhase.CERT_REQUESTED:
                 break;
             default:
                 throw new IllegalArgumentException(
                         "phase not in org.chromium.net.test.FailurePhase");
         }
         return nativeGetMockUrlWithFailure(phase, netError);
     }
 
     /**
      * Constructs a mock URL that synchronously responds with data repeated many
@@ skipping 15 matching lines @@
 
     private static native void nativeAddUrlInterceptors();
 
     private static native String nativeGetMockUrlWithFailure(int phase, int netError);
 
     private static native String nativeGetMockUrlForData(String data,
             int dataRepeatCount);
 
     private static native String nativeGetMockUrlForSSLCertificateError();
 }