Disable flaky tests: AutoEnrollmentClientTest and CacheNotStarted

chrome/browser/chromeos/extensions/device_local_account_external_policy_loader_unittest.cc

 // 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.
 
 #include "chrome/browser/chromeos/extensions/device_local_account_external_policy_loader.h"
 
 #include <string>
 
 #include "base/callback.h"
 #include "base/files/file_util.h"
@@ skipping 160 matching lines @@
       kExtensionId,
       extension_urls::GetWebstoreUpdateUrl().spec().c_str()));
   store_.policy_map_.Set(policy::key::kExtensionInstallForcelist,
                          policy::POLICY_LEVEL_MANDATORY,
                          policy::POLICY_SCOPE_USER,
                          forcelist.release(),
                          NULL);
   store_.NotifyStoreLoaded();
 }
 
+#if defined(OS_CHROMEOS)
+// crbug.com/422884
+#define MAYBE_CacheNotStarted DISABLED_CacheNotStarted
+#else
+#define MAYBE_CacheNotStarted CacheNotStarted
+#endif
+
 // Verifies that when the cache is not explicitly started, the loader does not
 // serve any extensions, even if the force-install list policy is set or a load
 // is manually requested.
-TEST_F(DeviceLocalAccountExternalPolicyLoaderTest, CacheNotStarted) {
+TEST_F(DeviceLocalAccountExternalPolicyLoaderTest, MAYBE_CacheNotStarted) {
   // Set the force-install list policy.
   SetForceInstallListPolicy();
 
   // Manually request a load.
   loader_->StartLoading();
 
   EXPECT_FALSE(loader_->IsCacheRunning());
   EXPECT_TRUE(base::MessageLoop::current()->IsIdleForTesting());
 }
 
@@ skipping 105 matching lines @@
   loader_->StopCache(shutdown_run_loop.QuitClosure());
   VerifyAndResetVisitorCallExpectations();
 
   // Spin the loop until the cache shutdown callback is invoked. Verify that at
   // that point, no further file I/O tasks are pending.
   shutdown_run_loop.Run();
   EXPECT_TRUE(base::MessageLoop::current()->IsIdleForTesting());
 }
 
 }  // namespace chromeos