Disable a flaky test under MemorySanitizer.

chrome/browser/ui/browser_browsertest.cc

 // Copyright (c) 2012 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 <string>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
@@ skipping 766 matching lines @@
   // the pending RVH to be destroyed.
   host_destroyed_observer.Wait();
   EXPECT_EQ(url, browser()->toolbar_model()->GetURL());
 
   // Clear the beforeunload handler so the test can easily exit.
   browser()->tab_strip_model()->GetActiveWebContents()->GetMainFrame()->
       ExecuteJavaScript(ASCIIToUTF16("onbeforeunload=null;"));
 }
 
 // Crashy on mac.  http://crbug.com/38522  Crashy on win too (after 3 years).
-#if defined(OS_MACOSX) || defined(OS_WIN)
+// Flaky timeouts on a MemorySanitizer bot. http://crbug.com/410891
+#if defined(OS_MACOSX) || defined(OS_WIN) || defined(MEMORY_SANITIZER)
 #define MAYBE_SingleBeforeUnloadAfterWindowClose \
         DISABLED_SingleBeforeUnloadAfterWindowClose
 #else
 #define MAYBE_SingleBeforeUnloadAfterWindowClose \
         SingleBeforeUnloadAfterWindowClose
 #endif
 
 // Test for crbug.com/11647.  A page closed with window.close() should not have
 // two beforeunload dialogs shown.
 IN_PROC_BROWSER_TEST_F(BrowserTest, MAYBE_SingleBeforeUnloadAfterWindowClose) {
@@ skipping 1919 matching lines @@
 #endif
   EXPECT_EQ(exp_commit_size, rwhv_commit_size2);
   EXPECT_EQ(exp_commit_size, wcv_commit_size2);
   gfx::Size exp_final_size(initial_wcv_size);
   exp_final_size.Enlarge(wcv_resize_insets.width(),
                          wcv_resize_insets.height() + height_inset);
   EXPECT_EQ(exp_final_size,
             web_contents->GetRenderWidgetHostView()->GetViewBounds().size());
   EXPECT_EQ(exp_final_size, web_contents->GetContainerBounds().size());
 }