Disable TaskManagerBrowserTest.ShutdownWhileOpen on ChromeOS, it actually crashes.

chrome/browser/task_manager/task_manager_browsertest.cc

 // Copyright (c) 2011 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/task_manager/task_manager.h"
 
 #include "base/file_path.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/background/background_contents_service.h"
 #include "chrome/browser/background/background_contents_service_factory.h"
@@ skipping 38 matching lines @@
 
 }  // namespace
 
 class TaskManagerBrowserTest : public ExtensionBrowserTest {
  public:
   TaskManagerModel* model() const {
     return TaskManager::GetInstance()->model();
   }
 };
 
-// Flaky on ChromeOS (triggers pure virtual function call), see
+// Flaky crashes on ChromeOS (triggers pure virtual function call), see
 // http://crbug.com/92297 for details
 #if defined(OS_CHROMEOS)
-#define MAYBE_ShutdownWhileOpen FLAKY_ShutdownWhileOpen
+#define MAYBE_ShutdownWhileOpen DISABLED_ShutdownWhileOpen
 #else
 #define MAYBE_ShutdownWhileOpen ShutdownWhileOpen
 #endif
 
 // Regression test for http://crbug.com/13361
 IN_PROC_BROWSER_TEST_F(TaskManagerBrowserTest, MAYBE_ShutdownWhileOpen) {
   browser()->window()->ShowTaskManager();
 }
 
 IN_PROC_BROWSER_TEST_F(TaskManagerBrowserTest, NoticeTabContentsChanges) {
@@ skipping 369 matching lines @@
   TaskManagerBrowserTestUtil::WaitForResourceChange(3);
 
   // Check that we get some value for the cache columns.
   DCHECK_NE(model()->GetResourceWebCoreImageCacheSize(2),
             l10n_util::GetStringUTF16(IDS_TASK_MANAGER_NA_CELL_TEXT));
   DCHECK_NE(model()->GetResourceWebCoreScriptsCacheSize(2),
             l10n_util::GetStringUTF16(IDS_TASK_MANAGER_NA_CELL_TEXT));
   DCHECK_NE(model()->GetResourceWebCoreCSSCacheSize(2),
             l10n_util::GetStringUTF16(IDS_TASK_MANAGER_NA_CELL_TEXT));
 }