Make touch drag drop and touch editing flags tri-state and turn them on by

ui/base/ui_base_switches_util.h

Index: ui/base/ui_base_switches_util.h
diff --git a/ui/base/ui_base_switches_util.h b/ui/base/ui_base_switches_util.h
new file mode 100644
index 0000000000000000000000000000000000000000..93a288485ea765351df46d30bff0f41ea6e2e329
--- /dev/null
+++ b/ui/base/ui_base_switches_util.h
@@ -0,0 +1,18 @@
+// 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.
+
+#ifndef UI_BASE_UI_BASE_SWITCHES_UTIL_H_
+#define UI_BASE_UI_BASE_SWITCHES_UTIL_H_
+
+#include "base/compiler_specific.h"
+#include "ui/base/ui_export.h"
+
+namespace switches {
+
+UI_EXPORT bool IsTouchDragDropEnabled();
+UI_EXPORT bool IsTouchEditingEnabled();
+
+}  // namespace switches
+
+#endif  // UI_BASE_UI_BASE_SWITCHES_UTIL_H_