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

components/cronet/android/test/javatests/src/org/chromium/net/CronetUrlRequestTest.java

Index: components/cronet/android/test/javatests/src/org/chromium/net/CronetUrlRequestTest.java
diff --git a/components/cronet/android/test/javatests/src/org/chromium/net/CronetUrlRequestTest.java b/components/cronet/android/test/javatests/src/org/chromium/net/CronetUrlRequestTest.java
index 67afcab685dbd172baea4ad9c753cb12cd5bc1c0..5f1e6abe9af7ff44fa32570ad57406d986d8c613 100644
--- a/components/cronet/android/test/javatests/src/org/chromium/net/CronetUrlRequestTest.java
+++ b/components/cronet/android/test/javatests/src/org/chromium/net/CronetUrlRequestTest.java
@@ -554,6 +554,25 @@ public class CronetUrlRequestTest extends CronetTestBase {
     }
 
     /**
+     * Tests that request continues when client certificate is requested and the
+     * |arbitraryNetError| is reported later.
+     */
+    @SmallTest
+    @Feature({"Cronet"})
+    public void testMockCertRequested() throws Exception {
+        final int arbitraryNetError = -3;

[xunjieli, 2015/11/20 18:59:59]

It is a bit counterintuitive that we are reporting ERR_ABORTED even though we
decide to ContinueWithCertificate. 

Is it possible to make URLRequestMockDataJob or some other mock job to override
ContinueWithCertificate to continue with the request, and actually fetch some
response data?

That way the ContinueWithCertificate will actually mean ignore the cert error
and carry on with the request. Might be easier to understand.

[mef, 2015/11/20 20:51:49]

Good point. Done.

+        TestUrlRequestCallback callback =
+                startAndWaitForComplete(MockUrlRequestJobFactory.getMockUrlWithFailure(
+                        FailurePhase.CERT_REQUESTED, arbitraryNetError));
+        assertNull(callback.mResponseInfo);
+        assertNotNull(callback.mError);
+        assertEquals(arbitraryNetError, callback.mError.netError());
+        assertEquals(0, callback.mRedirectCount);
+        assertTrue(callback.mOnErrorCalled);
+        assertEquals(callback.mResponseStep, ResponseStep.NOTHING);
+    }
+
+    /**
      * Tests that an SSL cert error will be reported via {@link UrlRequest#onFailed}.
      */
     @SmallTest