WebKit gardening. Disable a test which started to fail on Linux perf.

chrome/test/perf/shutdown_test.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 "base/environment.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/stringprintf.h"
 #include "base/string_number_conversions.h"
 #include "base/sys_info.h"
@@ skipping 100 matching lines @@
       }
     }
 
     std::string times;
     for (int i = 0; i < numCycles; ++i)
       base::StringAppendF(&times, "%.2f,", timings[i].InMillisecondsF());
     perf_test::PrintResultList(graph, "", trace, times, "ms", important);
   }
 };
 
-TEST_F(ShutdownTest, SimpleWindowClose) {
+TEST_F(ShutdownTest, DISABLED_SimpleWindowClose) {
   RunShutdownTest("shutdown", "simple-window-close",
                   true, /* important */ SIMPLE, ProxyLauncher::WINDOW_CLOSE);
 }
 
 TEST_F(ShutdownTest, SimpleUserQuit) {
   RunShutdownTest("shutdown", "simple-user-quit",
                   true, /* important */ SIMPLE, ProxyLauncher::USER_QUIT);
 }
 
 TEST_F(ShutdownTest, SimpleSessionEnding) {
@@ skipping 28 matching lines @@
 #define MAYBE_TwentyTabsSessionEnding TwentyTabsSessionEnding
 #endif
 
 TEST_F(ShutdownTest, MAYBE_TwentyTabsSessionEnding) {
   RunShutdownTest("shutdown", "twentytabs-session-ending",
                   true, /* important */ TWENTY_TABS,
                   ProxyLauncher::SESSION_ENDING);
 }
 
 }  // namespace