Mark NPAPITesterBase.GetURLRedirectNotification test as flaky on linux.

chrome/test/ui/npapi_uitest.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 "build/build_config.h"
 
 #if defined(OS_WIN)
 // windows headers
 #include <comutil.h>
 #include <shellapi.h>
@@ skipping 74 matching lines @@
 // Test that calling GetURL with a javascript URL and target=_self
 // works properly when the plugin is embedded in a subframe.
 TEST_F(NPAPITesterBase, GetJavaScriptURL2) {
   const FilePath test_case(FILE_PATH_LITERAL("get_javascript_url2.html"));
   GURL url = ui_test_utils::GetTestUrl(FilePath(kTestDir), test_case);
   ASSERT_NO_FATAL_FAILURE(NavigateToURL(url));
   WaitForFinish("getjavascripturl2", "1", url, kTestCompleteCookie,
                 kTestCompleteSuccess, TestTimeouts::action_max_timeout_ms());
 }
 
-TEST_F(NPAPITesterBase, GetURLRedirectNotification) {
+// Test is flaky on linux/cros builders.  http://crbug.com/71904
+#if defined(OS_POSIX)
+#define MAYBE_GetURLRedirectNotification FLAKY_GetURLRedirectNotification
+#else
+#define MAYBE_GetURLRedirectNotification GetURLRedirectNotification
+#endif
+TEST(NPAPITesterBase, MAYBE_GetURLRedirectNotification) {
   const FilePath test_case(FILE_PATH_LITERAL("geturl_redirect_notify.html"));
   GURL url = ui_test_utils::GetTestUrl(FilePath(kTestDir), test_case);
   ASSERT_NO_FATAL_FAILURE(NavigateToURL(url));
   WaitForFinish("geturlredirectnotify", "1", url, kTestCompleteCookie,
                 kTestCompleteSuccess, TestTimeouts::action_max_timeout_ms());
 }
 
 // Tests that if an NPObject is proxies back to its original process, the
 // original pointer is returned and not a proxy.  If this fails the plugin
 // will crash.
@@ skipping 309 matching lines @@
   ASSERT_NO_FATAL_FAILURE(NavigateToURL(url));
 
   scoped_refptr<TabProxy> tab(browser->GetTab(0));
   ASSERT_TRUE(tab.get());
 
   ASSERT_TRUE(tab->LoadBlockedPlugins());
 
   WaitForFinish("setup", "1", url, kTestCompleteCookie,
                 kTestCompleteSuccess, TestTimeouts::action_max_timeout_ms());
 }