Views:: Make Labels support text selection.

ui/views/controls/textfield/textfield.cc

Index: ui/views/controls/textfield/textfield.cc
diff --git a/ui/views/controls/textfield/textfield.cc b/ui/views/controls/textfield/textfield.cc
index b0052510f706705ef884cfe2e91c90d9d8da00e7..fa6a752ec425d3b80ca9244e2be1cc117c53e94b 100644
--- a/ui/views/controls/textfield/textfield.cc
+++ b/ui/views/controls/textfield/textfield.cc
@@ -1732,6 +1732,10 @@ bool Textfield::IsReadOnly() const {
   return false;
 }
 
+bool Textfield::SupportsDrag() const {
+  return true;
+}
+
 void Textfield::SetTextBeingDragged(bool value) {
   initiating_drag_ = value;
 }