Disabling flaky unit test.

chrome/browser/notifications/notification_platform_bridge_linux_unittest.cc

 // Copyright 2017 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/notifications/notification_platform_bridge_linux.h"
 
 #include <memory>
 #include <vector>
 
 #include "base/callback.h"
@@ skipping 164 matching lines @@
   base::Callback<void(dbus::Signal*)> notification_closed_callback_;
 
   std::unique_ptr<NotificationPlatformBridgeLinux> notification_bridge_linux_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(NotificationPlatformBridgeLinuxTest);
 };
 
 TEST_F(NotificationPlatformBridgeLinuxTest, SetUpAndTearDown) {}
 
-TEST_F(NotificationPlatformBridgeLinuxTest, NotifyAndCloseFormat) {
+// Frequently triggers a data race. Disabled as flaky: https://crbug.com/719485
+TEST_F(NotificationPlatformBridgeLinuxTest, DISABLED_NotifyAndCloseFormat) {
   EXPECT_CALL(*mock_notification_proxy_.get(),
               MockCallMethodAndBlock(Calls("Notify"), _))
       .WillOnce(OnNotify(1));
   notification_bridge_linux_->Display(NotificationCommon::PERSISTENT, "", "",
                                       false,
                                       CreateNotification("id1", "", "", ""));
 
   EXPECT_CALL(*mock_notification_proxy_.get(),
               MockCallMethodAndBlock(Calls("CloseNotification"), _))
       .WillOnce(OnCloseNotification());
   notification_bridge_linux_->Close("", "");
 }