Disable BookmarkBarViewTest5.DND as it's flaky.

I see it sometimes failing on try jobs even with reruns.

BUG=128961
TBR=sky@chromium.org

Review URL: https://codereview.chromium.org/473493002

Cr-Commit-Position: refs/heads/master@{#289309}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@289309 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/ui/views/bookmarks/bookmark_bar_view_test.cc

@@ -733,7 +733,9 @@ class BookmarkBarViewTest5 : public BookmarkBarViewEventTestBase {
   GURL url_dragging_;
 };
 
+#if !defined(OS_WIN)  // flaky http://crbug.com/400578
 VIEW_TEST(BookmarkBarViewTest5, MAYBE(DND))
+#endif
 
 // Tests holding mouse down on overflow button, dragging such that menu pops up
 // then selecting an item.