Disable InstantExtendedTest.OmniboxMarginSetForSearchURLs on Linux Asan due to flaky crashes at shu…

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 412 matching lines @@
       content::NotificationService::AllSources());
   SetOmniboxText(instant_url().Resolve("#q=puppies").spec());
   PressEnterAndWaitForNavigation();
   observer_2.Wait();
 
   // Should not have reused the tab.
   active_tab = browser()->tab_strip_model()->GetActiveWebContents();
   ASSERT_THAT(active_tab->GetURL().spec(), HasSubstr("q=puppies"));
 }
 
-IN_PROC_BROWSER_TEST_F(InstantExtendedTest, OmniboxMarginSetForSearchURLs) {
+#if defined(OS_LINUX) && defined(ADDRESS_SANITIZER)
+// Flaky crashes at shutdown on Linux Asan; http://crbug.com/517886.
+#define MAYBE_OmniboxMarginSetForSearchURLs \
+  DISABLED_OmniboxMarginSetForSearchURLs
+#else
+#define MAYBE_OmniboxMarginSetForSearchURLs OmniboxMarginSetForSearchURLs
+#endif
+IN_PROC_BROWSER_TEST_F(InstantExtendedTest,
+                       MAYBE_OmniboxMarginSetForSearchURLs) {
   ASSERT_NO_FATAL_FAILURE(SetupInstant(browser()));
   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());
 
   SetOmniboxText("flowers");
   browser()->window()->GetLocationBar()->AcceptInput();
@@ skipping 530 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());
 }