Revert of Disable flaky FeedbackTest.ShowFeedback on Chrome OS

chrome/browser/extensions/api/feedback_private/feedback_browsertest.cc

 // Copyright 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 "base/bind.h"
 #include "chrome/browser/apps/app_browsertest_util.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/api/feedback_private/feedback_private_api.h"
 #include "chrome/browser/extensions/component_loader.h"
 #include "chrome/browser/extensions/extension_browsertest.h"
@@ skipping 63 matching lines @@
  private:
   void InvokeFeedbackUI(FeedbackFlow flow) {
     extensions::FeedbackPrivateAPI* api =
         extensions::FeedbackPrivateAPI::GetFactoryInstance()->Get(
             browser()->profile());
     api->RequestFeedbackForFlow("Test description", "Test tag",
                                 GURL("http://www.test.com"), flow);
   }
 };
 
-// http://crbug.com/601433
-#if defined(OS_CHROMEOS)
-#define MAYBE_ShowFeedback DISABLED_ShowFeedback
-#else
-#define MAYBE_ShowFeedback ShowFeedback
-#endif
-IN_PROC_BROWSER_TEST_F(FeedbackTest, MAYBE_ShowFeedback) {
+IN_PROC_BROWSER_TEST_F(FeedbackTest, ShowFeedback) {
   WaitForExtensionViewsToLoad();
 
   ASSERT_TRUE(IsFeedbackAppAvailable());
   StartFeedbackUI(FeedbackFlow::FEEDBACK_FLOW_REGULAR);
   VerifyFeedbackAppLaunch();
 }
 
 IN_PROC_BROWSER_TEST_F(FeedbackTest, ShowLoginFeedback) {
   WaitForExtensionViewsToLoad();
 
@@ skipping 10 matching lines @@
   ASSERT_TRUE(content::ExecuteScriptAndExtractBool(
       content,
       "domAutomationController.send("
         "$('page-url').hidden && $('attach-file-container').hidden && "
         "$('attach-file-note').hidden);",
       &bool_result));
   EXPECT_TRUE(bool_result);
 }
 
 }  // namespace extensions