Disable flaky InstantExtendedTest

chrome/browser/ui/search/instant_extended_interactive_uitest.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 <sstream>
 
 #include "base/command_line.h"
 #include "base/metrics/histogram_base.h"
 #include "base/metrics/histogram_samples.h"
 #include "base/metrics/statistics_recorder.h"
@@ skipping 575 matching lines @@
   // Install a new theme.
   ASSERT_NO_FATAL_FAILURE(InstallThemeAndVerify("theme2", "snowflake theme"));
 
   // Confirm that new tab is notified about the theme changed event.
   on_theme_changed_calls = 0;
   EXPECT_TRUE(GetIntFromJS(active_tab, "onThemeChangedCalls",
                            &on_theme_changed_calls));
   EXPECT_EQ(2, on_theme_changed_calls);
 }
 
-// Flaky on Mac and Linux Tests bots.
-#if defined(OS_MACOSX) || defined(OS_LINUX)
-#define MAYBE_UpdateSearchQueryOnBackNavigation DISABLED_UpdateSearchQueryOnBackNavigation
-#else
-#define MAYBE_UpdateSearchQueryOnBackNavigation UpdateSearchQueryOnBackNavigation
-#endif
+// Flaky on all bots.  http://crbug.com/253092
 // Test to verify that the omnibox search query is updated on browser
 // back button press event.
 IN_PROC_BROWSER_TEST_F(InstantExtendedTest,
-                       MAYBE_UpdateSearchQueryOnBackNavigation) {
+                       DISABLED_UpdateSearchQueryOnBackNavigation) {
   ASSERT_NO_FATAL_FAILURE(SetupInstant(browser()));
 
   // Focus omnibox and confirm overlay isn't shown.
   FocusOmnibox();
 
   // Create an observer to wait for the instant tab to support Instant.
   content::WindowedNotificationObserver observer(
       chrome::NOTIFICATION_INSTANT_TAB_SUPPORT_DETERMINED,
       content::NotificationService::AllSources());
 
@@ skipping 359 matching lines @@
   stream << "link.href = \"" << result_url.spec() << "\";";
   stream << "document.body.appendChild(link);";
   stream << "link.click();";
   EXPECT_TRUE(content::ExecuteScript(contents, stream.str()));
 
   content::WaitForLoadStop(contents);
   std::string expected_title =
       "Referrer is " + instant_url().GetWithEmptyPath().spec();
   EXPECT_EQ(ASCIIToUTF16(expected_title), contents->GetTitle());
 }