SearchBoxView now enables/disables cursor based on user interaction.

ui/views/controls/textfield/textfield_controller.h

Index: ui/views/controls/textfield/textfield_controller.h
diff --git a/ui/views/controls/textfield/textfield_controller.h b/ui/views/controls/textfield/textfield_controller.h
index 7dcffb9648ada99292c4cdb40132528b05cf877a..f92e712c72a2a41fb3ecfaa53697a024785c5ca4 100644
--- a/ui/views/controls/textfield/textfield_controller.h
+++ b/ui/views/controls/textfield/textfield_controller.h
@@ -14,6 +14,7 @@
 namespace ui {
 class KeyEvent;
 class MouseEvent;
+class GestureEvent;
 class SimpleMenuModel;
 }  // namespace ui
 
@@ -31,18 +32,24 @@ class VIEWS_EXPORT TextfieldController {
   virtual void ContentsChanged(Textfield* sender,
                                const base::string16& new_contents) {}
 
-  // This method is called to get notified about keystrokes in the edit.
+  // Called to get notified about keystrokes in the edit.
   // Returns true if the message was handled and should not be processed
   // further. If it returns false the processing continues.
   virtual bool HandleKeyEvent(Textfield* sender,
                               const ui::KeyEvent& key_event);
 
-  // This method is called to get notified about mouse events in the edit.
+  // Called to get notified about mouse events in the edit.
   // Returns true if the message was handled and should not be processed
   // further. Currently, only mouse down events are sent here.
   virtual bool HandleMouseEvent(Textfield* sender,
                                 const ui::MouseEvent& mouse_event);
 
+  // Called to get notified about gesture events in the edit.
+  // Returns true if the message was handled and should not be processed
+  // further. Currently, only tap events are sent here.
+  virtual bool HandleGestureEvent(Textfield* sender,
+                                  const ui::GestureEvent& gesture_event);
+
   // Called before performing a user action that may change the textfield.
   // It's currently only supported by Views implementation.
   virtual void OnBeforeUserAction(Textfield* sender) {}