Fix PPAPINaClNewlibTest.PostMessage flakiness

chrome/test/ppapi/ppapi_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 "chrome/test/ppapi/ppapi_test.h"
 
 #include "base/test/test_timeouts.h"
 #include "build/build_config.h"
 #include "chrome/browser/content_settings/host_content_settings_map.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 657 matching lines @@
       LIST_TEST(PostMessage_NoHandler) \
       LIST_TEST(PostMessage_ExtraParam) \
       LIST_TEST(PostMessage_NonMainThread) \
   )
 
 // Windows defines 'PostMessage', so we have to undef it.
 #ifdef PostMessage
 #undef PostMessage
 #endif
 
-// Flaky: crbug.com/269530
-#if defined(OS_WIN)
-#define MAYBE_PostMessage DISABLED_PostMessage
-#else
-#define MAYBE_PostMessage PostMessage
-#endif
-IN_PROC_BROWSER_TEST_F(OutOfProcessPPAPITest, MAYBE_PostMessage) {
+IN_PROC_BROWSER_TEST_F(OutOfProcessPPAPITest, PostMessage) {
   RUN_POSTMESSAGE_SUBTESTS;
 }
-IN_PROC_BROWSER_TEST_F(PPAPINaClNewlibTest, MAYBE_PostMessage) {
+IN_PROC_BROWSER_TEST_F(PPAPINaClNewlibTest, PostMessage) {
   RUN_POSTMESSAGE_SUBTESTS;
 }
 IN_PROC_BROWSER_TEST_F(PPAPINaClGLibcTest, MAYBE_GLIBC(PostMessage)) {
   RUN_POSTMESSAGE_SUBTESTS;
 }
 IN_PROC_BROWSER_TEST_F(PPAPINaClPNaClTest, PostMessage) {
   RUN_POSTMESSAGE_SUBTESTS;
 }
 IN_PROC_BROWSER_TEST_F(PPAPINaClPNaClNonSfiTest,
                        MAYBE_PNACL_NONSFI(PostMessage)) {
@@ skipping 671 matching lines @@
           LIST_TEST(FlashDRM_GetHmonitor)
           LIST_TEST(FlashDRM_GetVoucherFile));
 }
 
 TEST_PPAPI_IN_PROCESS(TalkPrivate)
 TEST_PPAPI_OUT_OF_PROCESS(TalkPrivate)
 
 #if defined(OS_CHROMEOS)
 TEST_PPAPI_OUT_OF_PROCESS(OutputProtectionPrivate)
 #endif