Disabling flaky CertificateProviderApiTest.Basic

Appears someone attempted to disable this, but it's DISABLED, not
DISABLE.

Tbr: emaxx@chromium.org
Bug: 1011606
Change-Id: I00e8dc774029c811fbce4ab4874135f749ff5013
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1844812Reviewed-by: Patrik Höglund <phoglund@chromium.org>
Commit-Queue: Patrik Höglund <phoglund@chromium.org>
Cr-Commit-Position: refs/heads/master@{#703235}

chrome/browser/extensions/api/certificate_provider/certificate_provider_apitest.cc

@@ -257,7 +257,8 @@ class CertificateProviderRequestPinTest : public CertificateProviderApiTest {
 
 }  // namespace
 
-IN_PROC_BROWSER_TEST_F(CertificateProviderApiTest, DISABLE_Basic) {
+// Flaky: crbug.com/1011606.
+IN_PROC_BROWSER_TEST_F(CertificateProviderApiTest, DISABLED_Basic) {
   // Start an HTTPS test server that requests a client certificate.
   net::SpawnedTestServer::SSLOptions ssl_options;
   ssl_options.request_client_certificate = true;