Delays find-in-page until IME composition is committed.

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/string16.h"
@@ skipping 11 matching lines @@
 class Textfield;
 
 // This defines the callback interface for other code to be notified of changes
 // in the state of a text field.
 class VIEWS_EXPORT TextfieldController {
  public:
   // This method is called whenever the text in the field is changed by the
   // user. It won't be called if the text is changed by calling
   // Textfield::SetText() or Textfield::AppendText().
   virtual void ContentsChanged(Textfield* sender,
-                               const string16& new_contents) = 0;
+                               const string16& new_contents) {}
 
   // This method is 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) = 0;
+                              const ui::KeyEvent& key_event);
 
   // This method is 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 before performing a user action that may change the textfield.
   // It's currently only supported by Views implementation.
   virtual void OnBeforeUserAction(Textfield* sender) {}
@@ skipping 47 matching lines @@
   // 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_