Disable AutofillInteractiveTest.OnSelectOptionFromDatalist as it fails locally all the time on 10.8.

chrome/browser/autofill/autofill_interactive_uitest.cc

 // Copyright (c) 2013 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 <string>
 
 #include "base/basictypes.h"
 #include "base/command_line.h"
 #include "base/files/file_util.h"
 #include "base/memory/ref_counted.h"
@@ skipping 642 matching lines @@
 
   // Invoke and accept the Autofill popup and verify the field was filled.
   SendKeyToPageAndWait(ui::VKEY_M);
   SendKeyToPopupAndWait(ui::VKEY_DOWN);
   SendKeyToPopupAndWait(ui::VKEY_RETURN);
   ExpectFieldValue("firstname", "Milton");
 }
 
 // Test that an input field is not rendered with the yellow autofilled
 // background color when choosing an option from the datalist suggestion list.
-IN_PROC_BROWSER_TEST_F(AutofillInteractiveTest, OnSelectOptionFromDatalist) {
+#if defined(OS_MACOSX)
+// Flakily triggers and assert on Mac.
+// http://crbug.com/419868
+#define MAYBE_OnSelectOptionFromDatalist DISABLED_OnSelectOptionFromDatalist
+#else
+#define MAYBE_OnSelectOptionFromDatalist OnSelectOptionFromDatalist
+#endif
+IN_PROC_BROWSER_TEST_F(AutofillInteractiveTest,
+                       MAYBE_OnSelectOptionFromDatalist) {
   // Load the test page.
   ASSERT_NO_FATAL_FAILURE(ui_test_utils::NavigateToURL(
       browser(),
       GURL(std::string(kDataURIPrefix) +
            "<form action=\"http://www.example.com/\" method=\"POST\">"
            "  <input list=\"dl\" type=\"search\" id=\"firstname\""
            "         onfocus=\"domAutomationController.send(true)\"><br>"
            "  <datalist id=\"dl\">"
            "  <option value=\"Adam\"></option>"
            "  <option value=\"Bob\"></option>"
@@ skipping 767 matching lines @@
   ASSERT_TRUE(content::ExecuteScript(
       GetRenderViewHost(),
       "document.querySelector('input').autocomplete = 'off';"));
 
   // Press the down arrow to select the suggestion and attempt to preview the
   // autofilled form.
   SendKeyToPopupAndWait(ui::VKEY_DOWN);
 }
 
 }  // namespace autofill