Add InputMethodObserver support into InputMethodBase

ui/base/ime/input_method_ibus.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_BASE_IME_INPUT_METHOD_IBUS_H_
 #define UI_BASE_IME_INPUT_METHOD_IBUS_H_
 
 #include <set>
 #include <string>
 
@@ skipping 29 matching lines @@
   virtual void OnFocus() OVERRIDE;
   virtual void OnBlur() OVERRIDE;
   virtual bool OnUntranslatedIMEMessage(const base::NativeEvent& event,
                                         NativeEventResult* result) OVERRIDE;
   virtual bool DispatchKeyEvent(
       const base::NativeEvent& native_key_event) OVERRIDE;
   virtual bool DispatchFabricatedKeyEvent(const ui::KeyEvent& event) OVERRIDE;
   virtual void OnTextInputTypeChanged(const TextInputClient* client) OVERRIDE;
   virtual void OnCaretBoundsChanged(const TextInputClient* client) OVERRIDE;
   virtual void CancelComposition(const TextInputClient* client) OVERRIDE;
-  virtual void OnInputLocaleChanged() OVERRIDE;
   virtual std::string GetInputLocale() OVERRIDE;
   virtual base::i18n::TextDirection GetInputTextDirection() OVERRIDE;
   virtual bool IsActive() OVERRIDE;
   virtual bool IsCandidatePopupOpen() const OVERRIDE;
 
  protected:
   // Converts |text| into CompositionText.
   void ExtractCompositionText(const chromeos::IBusText& text,
                               uint32 cursor_position,
                               CompositionText* out_composition) const;
@@ skipping 71 matching lines @@
   virtual void HidePreeditText() OVERRIDE;
   virtual void UpdatePreeditText(const chromeos::IBusText& text,
                                  uint32 cursor_pos,
                                  bool visible) OVERRIDE;
   virtual void DeleteSurroundingText(int32 offset, uint32 length) OVERRIDE;
 
   void ProcessKeyEventDone(uint32 id, XEvent* xevent,
                            uint32 ibus_keyval, uint32 ibus_keycode,
                            uint32 ibus_state, bool is_handled);
 
+  // Processes a caret bounds changed event.
+  void OnCaretBoundsChangedInternal(const TextInputClient* client);
+
   // All pending key events. Note: we do not own these object, we just save
   // pointers to these object so that we can abandon them when necessary.
   // They will be deleted in ProcessKeyEventDone().
   std::set<uint32> pending_key_events_;
 
   // Pending composition text generated by the current pending key event.
   // It'll be sent to the focused text input client as soon as we receive the
   // processing result of the pending key event.
   CompositionText composition_;
 
@@ skipping 29 matching lines @@
 
   // Used for making callbacks.
   base::WeakPtrFactory<InputMethodIBus> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(InputMethodIBus);
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_IME_INPUT_METHOD_IBUS_H_