Mark BrowserKeyEventsTest.ReservedAccelerators flaky on Mac.

chrome/browser/browser_keyevents_browsertest.cc

 // Copyright (c) 2010 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 "build/build_config.h"
 
 #include "base/basictypes.h"
 #include "base/keyboard_codes.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
@@ skipping 651 matching lines @@
   EXPECT_NO_FATAL_FAILURE(TestKeyEvent(tab_index, kTestAccess1));
 #if defined(TOOLKIT_GTK)
   // On GTK, alt-0..9 are assigned as tab selection accelerators, so they can
   // not be used as accesskeys.
   EXPECT_NO_FATAL_FAILURE(CheckFocusedElement(tab_index, L""));
 #else
   EXPECT_NO_FATAL_FAILURE(CheckFocusedElement(tab_index, L"1"));
 #endif
 }
 
-IN_PROC_BROWSER_TEST_F(BrowserKeyEventsTest, ReservedAccelerators) {
+#if defined(OS_MACOSX)
+// See http://crbug.com/50447 for details.
+#define MAYBE_ReservedAccelerators FLAKY_ReservedAccelerators
+#else
+#define MAYBE_ReservedAccelerators ReservedAccelerators
+#endif
+
+IN_PROC_BROWSER_TEST_F(BrowserKeyEventsTest, MAYBE_ReservedAccelerators) {
   HTTPTestServer* server = StartHTTPServer();
   ASSERT_TRUE(server);
 
   BringBrowserWindowToFront();
   GURL url = server->TestServerPage(kTestingPage);
   ui_test_utils::NavigateToURL(browser(), url);
 
   ASSERT_NO_FATAL_FAILURE(ClickOnView(VIEW_ID_TAB_CONTAINER));
   ASSERT_TRUE(IsViewFocused(VIEW_ID_TAB_CONTAINER_FOCUS_VIEW));
 
@@ skipping 194 matching lines @@
   ASSERT_TRUE(IsViewFocused(VIEW_ID_TAB_CONTAINER_FOCUS_VIEW));
 
   int tab_index = browser()->selected_index();
   ASSERT_NO_FATAL_FAILURE(SetFocusedElement(tab_index, L"A"));
   EXPECT_NO_FATAL_FAILURE(TestKeyEvent(tab_index, kTestPageUp));
   EXPECT_NO_FATAL_FAILURE(TestKeyEvent(tab_index, kTestPageDown));
   EXPECT_NO_FATAL_FAILURE(CheckTextBoxValue(tab_index, L"A", L""));
 }
 
 }  // namespace