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 835b10509babbaf1fe5147d13903fde02867f278..668936a5d5de84a4e0790137b60a9b113a90d630 100644
--- a/ui/views/controls/textfield/textfield.cc
+++ b/ui/views/controls/textfield/textfield.cc
@@ -1762,6 +1762,10 @@ bool Textfield::IsReadOnly() const {
   return read_only();
 }
 
+bool Textfield::SupportsDrag() const {
+  return true;
+}
+
 void Textfield::SetTextBeingDragged(bool value) {
   initiating_drag_ = value;
 }