Re-enable the messaging/connect extension API test.

chrome/browser/extensions/extension_messages_apitest.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 "base/values.h"
 #include "chrome/browser/extensions/event_router.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/chrome_notification_types.h"
@@ skipping 59 matching lines @@
         content::Source<Profile>(source).ptr(),
         GURL()));
   }
 
   content::NotificationRegistrar registrar_;
 };
 
 }  // namespace
 
 // Tests that message passing between extensions and content scripts works.
-// Flaky on the trybots. See http://crbug.com/96725.
-IN_PROC_BROWSER_TEST_F(ExtensionApiTest, DISABLED_Messaging) {
+IN_PROC_BROWSER_TEST_F(ExtensionApiTest, Messaging) {
   ASSERT_TRUE(StartTestServer());
   ASSERT_TRUE(RunExtensionTest("messaging/connect")) << message_;
 }
 
 // Tests that message passing from one extension to another works.
 IN_PROC_BROWSER_TEST_F(ExtensionApiTest, MessagingExternal) {
   ASSERT_TRUE(LoadExtension(
       test_data_dir_.AppendASCII("..").AppendASCII("good")
                     .AppendASCII("Extensions")
                     .AppendASCII("bjafgdebaacbbbecmhlhpofkepfkgcpa")
@@ skipping 13 matching lines @@
 class PanelMessagingTest : public ExtensionApiTest {
   virtual void SetUpCommandLine(CommandLine* command_line) {
     ExtensionApiTest::SetUpCommandLine(command_line);
     command_line->AppendSwitch(switches::kEnablePanels);
   }
 };
 
 IN_PROC_BROWSER_TEST_F(PanelMessagingTest, MessagingPanel) {
   ASSERT_TRUE(RunExtensionTest("messaging/connect_panel")) << message_;
 }