views: don't send OnKeypressUnhandled for all keys

ui/views/controls/textfield/textfield.h

Index: ui/views/controls/textfield/textfield.h
diff --git a/ui/views/controls/textfield/textfield.h b/ui/views/controls/textfield/textfield.h
index 21dcca1a578fd0b1d316d46510e8f17aded8487b..3e624fab9f1f59ef94d0e313231ecbce7b329d82 100644
--- a/ui/views/controls/textfield/textfield.h
+++ b/ui/views/controls/textfield/textfield.h
@@ -403,9 +403,8 @@ class VIEWS_EXPORT Textfield : public View,
   // Pastes the selection clipboard for the specified mouse event.
   void PasteSelectionClipboard(const ui::MouseEvent& event);
 
-  // Called whenever a keypress is unhandled for any reason, including failing
-  // to insert text into a readonly text field.
-  void OnKeypressUnhandled();
+  // Called when editing a textfield fails because the textfield is readonly.
+  void OnEditFailed();
 
   // Returns true if an insertion cursor should be visible (a vertical bar,
   // placed at the point new text will be inserted).