Disable flaky ShelfAppBrowserTest_ActivationStateCheck.

chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl_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 "chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.h"
 
 #include <stddef.h>
 
 #include "ash/common/shelf/app_list_button.h"
 #include "ash/common/shelf/shelf_button.h"
@@ skipping 1184 matching lines @@
   // in its refocus url path.
   WmShelf::ActivateShelfItem(model_->ItemIndexByID(shortcut_id));
   EXPECT_EQ(++tab_count, tab_strip->count());
   WebContents* second_tab = tab_strip->GetActiveWebContents();
   EXPECT_EQ(ash::STATUS_ACTIVE, model_->ItemByID(shortcut_id)->status);
   EXPECT_NE(first_tab, second_tab);
   EXPECT_EQ(tab_strip->GetActiveWebContents(), second_tab);
 }
 
 // Check the launcher activation state for applications and browser.
-IN_PROC_BROWSER_TEST_F(ShelfAppBrowserTest, ActivationStateCheck) {
+IN_PROC_BROWSER_TEST_F(ShelfAppBrowserTest, DISABLED_ActivationStateCheck) {
   TabStripModel* tab_strip = browser()->tab_strip_model();
   // Get the browser item index
   int browser_index = GetIndexOfShelfItemType(ash::TYPE_BROWSER_SHORTCUT);
   EXPECT_TRUE(browser_index >= 0);
 
   // Even though we are just comming up, the browser should be active.
   EXPECT_EQ(ash::STATUS_ACTIVE, model_->items()[browser_index].status);
 
   ash::ShelfID shortcut_id = CreateShortcut("app1");
   controller_->SetRefocusURLPatternForTest(
@@ skipping 1176 matching lines @@
 
   // Close all windows via the menu item.
   CloseBrowserWindow(browser(), menu1.get(), LauncherContextMenu::MENU_CLOSE);
   EXPECT_EQ(0u, BrowserList::GetInstance()->size());
 
   // Check if "Close" is removed from the context menu.
   std::unique_ptr<LauncherContextMenu> menu2 = CreateBrowserItemContextMenu();
   ASSERT_FALSE(
       IsItemPresentInMenu(menu2.get(), LauncherContextMenu::MENU_CLOSE));
 }