Disable FirstRunUIBrowserTest.FirstRunFlow for flakiness

chrome/browser/chromeos/first_run/first_run_browsertest.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 "ash/first_run/first_run_helper.h"
 #include "ash/shell.h"
 #include "ash/system/tray/system_tray.h"
 #include "chrome/browser/chromeos/first_run/first_run.h"
 #include "chrome/browser/chromeos/first_run/first_run_controller.h"
 #include "chrome/browser/chromeos/first_run/step_names.h"
@@ skipping 108 matching lines @@
 
  private:
   bool initialized_;
   bool finalized_;
   base::Closure on_initialized_callback_;
   base::Closure on_step_shown_callback_;
   base::Closure on_finalized_callback_;
   test::JSChecker js_;
 };
 
-IN_PROC_BROWSER_TEST_F(FirstRunUIBrowserTest, FirstRunFlow) {
+// Disabled due to flakiness, see http://crbug.com/335280
+IN_PROC_BROWSER_TEST_F(FirstRunUIBrowserTest, DISABLED_FirstRunFlow) {
   LaunchTutorial();
   WaitForInitialization();
   WaitForStep(first_run::kAppListStep);
   EXPECT_FALSE(shell_helper()->IsTrayBubbleOpened());
   AdvanceStep();
   WaitForStep(first_run::kTrayStep);
   EXPECT_TRUE(shell_helper()->IsTrayBubbleOpened());
   AdvanceStep();
   WaitForStep(first_run::kHelpStep);
   EXPECT_TRUE(shell_helper()->IsTrayBubbleOpened());
   AdvanceStep();
   WaitForFinalization();
   content::RunAllPendingInMessageLoop();
   EXPECT_EQ(controller(), (void*)NULL);
   // shell_helper() is destructed already, thats why we call Shell directly.
   EXPECT_FALSE(ash::Shell::GetInstance()->GetPrimarySystemTray()->
       HasSystemBubble());
 }
 
 }  // namespace chromeos