Disable PrerenderBrowserTest.ControlGroup on OS X. Times out on Mac Chrome release builder

chrome/browser/prerender/prerender_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 <deque>
 
 #include "base/command_line.h"
 #include "base/path_service.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
@@ skipping 2251 matching lines @@
 // in a prerendered page.
 IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, PrerenderSessionStorage) {
   set_loader_path("files/prerender/prerender_loader_with_session_storage.html");
   PrerenderTestURL(GetCrossDomainTestUrl("files/prerender/prerender_page.html"),
                    FINAL_STATUS_USED,
                    1);
   NavigateToDestURL();
   GoBackToPageBeforePrerender();
 }
 
+#if defined(OS_MACOSX)
+// http://crbug.com/142535 - Times out on Chrome Mac release builder
+#define MAYBE_ControlGroup DISABLED_ControlGroup
+#else
+#define MAYBE_ControlGroup ControlGroup
+#endif
 // Checks that the control group works.  A JS alert cannot be detected in the
 // control group.
-IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, ControlGroup) {
+IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, MAYBE_ControlGroup) {
   RestorePrerenderMode restore_prerender_mode;
   PrerenderManager::SetMode(
       PrerenderManager::PRERENDER_MODE_EXPERIMENT_CONTROL_GROUP);
   PrerenderTestURL("files/prerender/prerender_alert_before_onload.html",
                    FINAL_STATUS_WOULD_HAVE_BEEN_USED, 0);
   NavigateToDestURL();
 }
 
 // Make sure that the MatchComplete dummy works in the normal case.  Once
 // a prerender is cancelled because of a script, a dummy must be created to
@@ skipping 101 matching lines @@
   ResultCatcher catcher;
 
   PrerenderTestURL("files/prerender/prerender_page.html", FINAL_STATUS_USED, 1);
   NavigateToDestURL();
   ASSERT_TRUE(IsEmptyPrerenderLinkManager());
 
   ASSERT_TRUE(catcher.GetNextResult()) << catcher.message();
 }
 
 }  // namespace prerender