Add Windows commandline switch --enable-views-textfield.

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 b163349fcf6a8f1426a58c2619d1ed9bafc3a389..a20052f8b2d9eec68a1d54392b03337a0a0c9f13 100644
--- a/ui/base/ui_base_switches.cc
+++ b/ui/base/ui_base_switches.cc
@@ -20,6 +20,9 @@ const char kEnableTouchCalibration[] = "enable-touch-calibration";
 // Enable support for touch events.
 const char kEnableTouchEvents[] = "enable-touch-events";
 
+// Enables the Views textfield on Windows.
+const char kEnableViewsTextfield[] = "enable-views-textfield";
+
 // The language file that we want to try to open. Of the form
 // language[-country] where language is the 2 letter code from ISO-639.
 const char kLang[] = "lang";