Disable flaky CaptivePortalBrowserTest on Windows.

chrome/browser/captive_portal/captive_portal_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 <map>
 #include <set>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 1876 matching lines @@
 // navigation is cancelled by a navigation to the same site.
 IN_PROC_BROWSER_TEST_F(CaptivePortalBrowserTest,
                        NavigateLoadingTabToTimeoutSingleSite) {
   RunNavigateLoadingTabToTimeoutTest(
       browser(),
       GURL(kMockHttpsUrl),
       GURL(kMockHttpsUrl),
       GURL(kMockHttpsUrl));
 }
 
+// Fails on Windows only, mostly on Win7. http://crbug.com/170033
+#if defined(OS_WIN)
+#define MAYBE_NavigateLoadingTabToTimeoutTwoSites \
+        DISABLED_NavigateLoadingTabToTimeoutTwoSites
+#else
+#define MAYBE_NavigateLoadingTabToTimeoutTwoSites \
+        NavigateLoadingTabToTimeoutTwoSites
+#endif
+
 // Checks that captive portal detection triggers correctly when a same-site
 // navigation is cancelled by a navigation to another site.
 IN_PROC_BROWSER_TEST_F(CaptivePortalBrowserTest,
-                       NavigateLoadingTabToTimeoutTwoSites) {
+                       MAYBE_NavigateLoadingTabToTimeoutTwoSites) {
   RunNavigateLoadingTabToTimeoutTest(
       browser(),
       GURL(kMockHttpsUrl),
       GURL(kMockHttpsUrl),
       GURL(kMockHttpsUrl2));
 }
 
 // Checks that captive portal detection triggers correctly when a cross-site
 // navigation is cancelled by a navigation to yet another site.
 IN_PROC_BROWSER_TEST_F(CaptivePortalBrowserTest,
@@ skipping 283 matching lines @@
       base::Bind(&AddHstsHost,
                  make_scoped_refptr(browser()->profile()->GetRequestContext()),
                  http_timeout_url.host()));
 
   SlowLoadBehindCaptivePortal(browser(), true, http_timeout_url, 1, 1);
   Login(browser(), 1, 0);
   FailLoadsAfterLogin(browser(), 1);
 }
 
 }  // namespace captive_portal