Pointer Lock (was Mouse Lock) added to about:flags and passed to WebKit runtime flags

webkit/glue/webpreferences.h

Index: webkit/glue/webpreferences.h
diff --git a/webkit/glue/webpreferences.h b/webkit/glue/webpreferences.h
index 5cf7aa03cded968cff9cd8811c1ca8cafcdce72c..b59062eda0d6740400af47a449de6ae7c71c41d2 100644
--- a/webkit/glue/webpreferences.h
+++ b/webkit/glue/webpreferences.h
@@ -102,6 +102,7 @@ struct WebPreferences {
   bool memory_info_enabled;
   bool interactive_form_validation_enabled;
   bool fullscreen_enabled;
+  bool pointer_lock_enabled;
   bool allow_displaying_insecure_content;
   bool allow_running_insecure_content;
   bool should_print_backgrounds;