Disable flaky BrowserCloseManagerBrowserTest.

chrome/browser/lifetime/browser_close_manager_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/lifetime/browser_close_manager.h"
 
 #include <utility>
 #include <vector>
 
 #include "base/command_line.h"
@@ skipping 333 matching lines @@
   content::RepeatedNotificationObserver close_observer(
       chrome::NOTIFICATION_BROWSER_CLOSED, 1);
   chrome::CloseAllBrowsersAndQuit();
   close_observer.Wait();
   EXPECT_TRUE(browser_shutdown::IsTryingToQuit());
   EXPECT_TRUE(BrowserList::GetInstance()->empty());
 }
 
 // Test that the tab closed after the aborted shutdown attempt is not re-opened
 // when restoring the session.
+// Flaky on Windows trybots, see https://crbug.com/737860.
+#if defined(OS_WIN)
+#define MAYBE_TestSessionRestore DISABLED_TestSessionRestore
+#else
+#define MAYBE_TestSessionRestore TestSessionRestore
+#endif
 IN_PROC_BROWSER_TEST_P(BrowserCloseManagerBrowserTest,
-                       TestSessionRestore) {
+                       MAYBE_TestSessionRestore) {
   // The testing framework launches Chrome with about:blank as args.
   EXPECT_EQ(2, browser()->tab_strip_model()->count());
   EXPECT_EQ(GURL(chrome::kChromeUIVersionURL),
             browser()->tab_strip_model()->GetWebContentsAt(0)->GetURL());
   EXPECT_EQ(GURL("about:blank"),
             browser()->tab_strip_model()->GetWebContentsAt(1)->GetURL());
 }
 
 // Test that browser windows are only closed if all browsers are ready to close
 // and that all beforeunload dialogs are shown again after a cancel.
@@ skipping 933 matching lines @@
 
   chrome::CloseAllBrowsers();
   EXPECT_FALSE(browser_shutdown::IsTryingToQuit());
   EXPECT_TRUE(BrowserList::GetInstance()->empty());
   EXPECT_TRUE(IsBackgroundModeSuspended());
 }
 
 INSTANTIATE_TEST_CASE_P(BrowserCloseManagerWithBackgroundModeBrowserTest,
                         BrowserCloseManagerWithBackgroundModeBrowserTest,
                         testing::Bool());