Re-enable DirectoryTreeContextMenu/FileManagerBrowserTest.Test/7

Fixed by crrev.com/551279

Tbr: yamaguchi-san
Bug: 832799
Change-Id: I54f77904b9a1a76020701d641c46293d00d2e72a
Reviewed-on: https://chromium-review.googlesource.com/1016781Reviewed-by: Noel Gordon <noel@chromium.org>
Commit-Queue: Noel Gordon <noel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#551646}

chrome/browser/chromeos/file_manager/file_manager_browsertest.cc

@@ -207,9 +207,8 @@ WRAPPED_INSTANTIATE_TEST_CASE_P(
                       "copyFromDirectoryTreeWithoutChaningCurrentDirectory"),
         TestParameter(NOT_IN_GUEST_MODE, "cutFromDirectoryTreeWithContextMenu"),
         TestParameter(IN_GUEST_MODE, "cutFromDirectoryTreeWithContextMenu"),
-        // Flaky https://crbug.com/832799
-        // TestParameter(NOT_IN_GUEST_MODE,
-        //              "cutFromDirectoryTreeWithKeyboardShortcut"),
+        TestParameter(NOT_IN_GUEST_MODE,
+                      "cutFromDirectoryTreeWithKeyboardShortcut"),
         TestParameter(IN_GUEST_MODE,
                       "cutFromDirectoryTreeWithKeyboardShortcut"),
         TestParameter(NOT_IN_GUEST_MODE,