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

ui/base/ui_base_switches.cc

Index: ui/base/ui_base_switches.cc
diff --git a/ui/base/ui_base_switches.cc b/ui/base/ui_base_switches.cc
index 80fcb0a3c5e160534bed12ad90b284d1e3a41825..92ea998dbe62472c05f054099695f1e33695284a 100644
--- a/ui/base/ui_base_switches.cc
+++ b/ui/base/ui_base_switches.cc
@@ -22,9 +22,11 @@ const char kEnableBezelTouch[] = "enable-bezel-touch";
 const char kEnableNewDialogStyle[] = "enable-new-dialog-style";
 
 const char kEnableTouchDragDrop[] = "enable-touch-drag-drop";
+const char kDisableTouchDragDrop[] = "disable-touch-drag-drop";
 
 // Enables controls that support touch base text editing.
 const char kEnableTouchEditing[] = "enable-touch-editing";
+const char kDisableTouchEditing[] = "disable-touch-editing";
 
 // Enables the Views textfield on Windows.
 const char kEnableViewsTextfield[] = "enable-views-textfield";