Revert of Merge NativeTextfieldViews into views::Textfield.

ui/views/controls/textfield/textfield_controller.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_VIEWS_CONTROLS_TEXTFIELD_TEXTFIELD_CONTROLLER_H_
 #define UI_VIEWS_CONTROLS_TEXTFIELD_TEXTFIELD_CONTROLLER_H_
 
 #include <set>
 
 #include "base/strings/string16.h"
@@ skipping 61 matching lines @@
 
   // Called when a drop of dragged data happens on the textfield. This method is
   // called before regular handling of the drop. If this returns a drag
   // operation other than |ui::DragDropTypes::DRAG_NONE|, regular handling is
   // skipped.
   virtual int OnDrop(const ui::OSExchangeData& data);
 
   // Gives the controller a chance to modify the context menu contents.
   virtual void UpdateContextMenu(ui::SimpleMenuModel* menu_contents) {}
 
+  // Returns true if the |command_id| should be enabled in the context menu.
+  virtual bool IsCommandIdEnabled(int command_id) const;
+
+  // Returns true if the item label for the |command_id| is dynamic in the
+  // context menu.
+  virtual bool IsItemForCommandIdDynamic(int command_id) const;
+
+  // Returns the label string for the |coomand_id|.
+  virtual base::string16 GetLabelForCommandId(int command_id) const;
+
+  // Returns whether the controller handles the specified command. This is used
+  // to handle a command the textfield would normally handle. For example, to
+  // have the controller handle |IDS_APP_PASTE| override and return true if
+  // |command_id| == |IDS_APP_PASTE|.
+  // This is only invoked if the command is enabled.
+  virtual bool HandlesCommand(int command_id) const;
+
+  // Execute context menu command specified by |command_id|.
+  virtual void ExecuteCommand(int command_id, int event_flag) {}
+
  protected:
   virtual ~TextfieldController() {}
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_TEXTFIELD_TEXTFIELD_CONTROLLER_H_