Restore disabled flaky tests of FileManager.

chrome/browser/chromeos/file_manager/file_manager_browsertest.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 <stddef.h>
 
 #include "base/macros.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/threading/thread_restrictions.h"
 #include "chrome/browser/chromeos/drive/file_system_util.h"
@@ skipping 114 matching lines @@
 // Flaky: http://crbug.com/711290
 WRAPPED_INSTANTIATE_TEST_CASE_P(
     DISABLED_OpenImageFiles,
     FileManagerBrowserTest,
     ::testing::Values(TestParameter(IN_GUEST_MODE, "imageOpenDownloads"),
                       TestParameter(NOT_IN_GUEST_MODE, "imageOpenDownloads"),
                       TestParameter(NOT_IN_GUEST_MODE, "imageOpenDrive")));
 
 // Flaky: crbug.com/715963
 WRAPPED_INSTANTIATE_TEST_CASE_P(
-    DISABLED_CreateNewFolder,
+    CreateNewFolder,
     FileManagerBrowserTest,
     ::testing::Values(
         TestParameter(NOT_IN_GUEST_MODE, "createNewFolderAfterSelectFile"),
         TestParameter(IN_GUEST_MODE, "createNewFolderDownloads"),
         TestParameter(NOT_IN_GUEST_MODE, "createNewFolderDownloads"),
         TestParameter(NOT_IN_GUEST_MODE, "createNewFolderDrive")));
 
 // Fails on official build. http://crbug.com/429294
 #if defined(DISABLE_SLOW_FILESAPP_TESTS) || defined(OFFICIAL_BUILD)
 #define MAYBE_KeyboardOperations DISABLED_KeyboardOperations
@@ skipping 523 matching lines @@
   AddAllUsers();
 
   // Sanity check that normal operations work in multi-profile setting as well.
   set_test_case_name("keyboardCopyDownloads");
   StartTest();
 }
 
 // Flaky: crbug.com/715961.
 // Previously it was disabled via DISABLE_SLOW_FILESAPP_TESTS and in
 // OFFICIAL_BUILD, see http://crbug.com/429294.
-IN_PROC_BROWSER_TEST_F(MultiProfileFileManagerBrowserTest,
-                       DISABLED_PRE_BasicDrive) {
+IN_PROC_BROWSER_TEST_F(MultiProfileFileManagerBrowserTest, PRE_BasicDrive) {
   AddAllUsers();
 }
 
 // Fails on official build. http://crbug.com/429294
 #if defined(DISABLE_SLOW_FILESAPP_TESTS) || defined(OFFICIAL_BUILD)
 #define MAYBE_BasicDrive DISABLED_BasicDrive
 #else
 #define MAYBE_BasicDrive BasicDrive
 #endif
 IN_PROC_BROWSER_TEST_F(MultiProfileFileManagerBrowserTest, MAYBE_BasicDrive) {
   AddAllUsers();
 
   // Sanity check that normal operations work in multi-profile setting as well.
   set_test_case_name("keyboardCopyDrive");
   StartTest();
 }
 
 }  // namespace file_manager