Disable 2 flaky tests.

- NSS/ClientCertStoreTest/CertAuthorityFiltering
- DeviceDescriptionServiceTest.TestCleanUpCacheEntries

BUG=716730,716810
TBR=mattm@chromium.org,zhaobin@chromium.org

Review-Url: https://codereview.chromium.org/2850083002
Cr-Commit-Position: refs/heads/master@{#468267}

chrome/browser/media/router/discovery/dial/device_description_service_unittest.cc

@@ -247,7 +247,8 @@ TEST_F(DeviceDescriptionServiceTest,
                                                               "");
 }
 
-TEST_F(DeviceDescriptionServiceTest, TestCleanUpCacheEntries) {
+// Flaky: https://crbug.com/716810
+TEST_F(DeviceDescriptionServiceTest, DISABLED_TestCleanUpCacheEntries) {
   DialDeviceData device_data_1 = CreateDialDeviceData(1);
   DialDeviceData device_data_2 = CreateDialDeviceData(2);
   DialDeviceData device_data_3 = CreateDialDeviceData(3);

net/ssl/client_cert_store_unittest-inl.h

@@ -93,7 +93,8 @@ TYPED_TEST_P(ClientCertStoreTest, AllIssuersAllowed) {
 
 // Verify that certificates are correctly filtered against CertRequestInfo with
 // |cert_authorities| containing only |authority_1_DN|.
-TYPED_TEST_P(ClientCertStoreTest, CertAuthorityFiltering) {
+// Flaky: https://crbug.com/716730
+TYPED_TEST_P(ClientCertStoreTest, DISABLED_CertAuthorityFiltering) {
   scoped_refptr<X509Certificate> cert_1(
       ImportCertFromFile(GetTestCertsDirectory(), "client_1.pem"));
   ASSERT_TRUE(cert_1.get());
@@ -129,7 +130,7 @@ TYPED_TEST_P(ClientCertStoreTest, CertAuthorityFiltering) {
 REGISTER_TYPED_TEST_CASE_P(ClientCertStoreTest,
                            EmptyQuery,
                            AllIssuersAllowed,
-                           CertAuthorityFiltering);
+                           DISABLED_CertAuthorityFiltering);
 
 }  // namespace net