Disable flaky CaptivePortalBrowserTest.TwoBrokenTabs on Mac.

chrome/browser/captive_portal/captive_portal_browsertest.cc

Index: chrome/browser/captive_portal/captive_portal_browsertest.cc
diff --git a/chrome/browser/captive_portal/captive_portal_browsertest.cc b/chrome/browser/captive_portal/captive_portal_browsertest.cc
index 35674da01499bbc3418557259244568a80b8b12e..2ce63679b4765a2927307d90a2278f23e6895fcc 100644
--- a/chrome/browser/captive_portal/captive_portal_browsertest.cc
+++ b/chrome/browser/captive_portal/captive_portal_browsertest.cc
@@ -1602,7 +1602,13 @@ IN_PROC_BROWSER_TEST_F(CaptivePortalBrowserTest, CloseLoginTab) {
 
 // Checks that two tabs with SSL timeouts in the same window work.  Both
 // tabs only timeout after logging in.
-IN_PROC_BROWSER_TEST_F(CaptivePortalBrowserTest, TwoBrokenTabs) {
+// Disabled: http://crbug.com/141497
+#if defined(OS_MACOSX)
+#define MAYBE_TwoBrokenTabs DISABLED_TwoBrokenTabs
+#else
+#define MAYBE_TwoBrokenTabs TwoBrokenTabs
+#endif
+IN_PROC_BROWSER_TEST_F(CaptivePortalBrowserTest, MAYBE_TwoBrokenTabs) {
   SlowLoadBehindCaptivePortal(browser(), true);
 
   // Can't set the TabReloader HTTPS timeout on a new tab without doing some