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 2ab27564ee4b4354f377bcfe825d7b0d4949d4b7..855b36e21438253fa0cc18c5019bb78a3b18f706 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;
 }