[FYI] All-in-one OnCandidateWindow{Show,Update,Hide}

ui/views/ime/input_method_bridge.cc

 // 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.
 
 #include "ui/views/ime/input_method_bridge.h"
 
 #include "ui/base/ime/input_method.h"
 #include "ui/base/ime/input_method_observer.h"
 #include "ui/events/event.h"
 #include "ui/gfx/rect.h"
@@ skipping 291 matching lines @@
     client->ExtendSelectionAndDelete(before, after);
 }
 
 void InputMethodBridge::EnsureCaretInRect(const gfx::Rect& rect) {
   TextInputClient* client = GetTextInputClient();
   if (client)
     client->EnsureCaretInRect(rect);
 }
 
 void InputMethodBridge::OnCandidateWindowShown() {
+  TextInputClient* client = GetTextInputClient();
+  if (client)
+    client->OnCandidateWindowShown();
 }
 
 void InputMethodBridge::OnCandidateWindowUpdated() {
+  TextInputClient* client = GetTextInputClient();
+  if (client)
+    client->OnCandidateWindowUpdated();
 }
 
 void InputMethodBridge::OnCandidateWindowHidden() {
+  TextInputClient* client = GetTextInputClient();
+  if (client)
+    client->OnCandidateWindowHidden();
 }
 
 // Overridden from FocusChangeListener.
 void InputMethodBridge::OnWillChangeFocus(View* focused_before, View* focused) {
   if (HasCompositionText()) {
     ConfirmCompositionText();
     CancelComposition(focused_before);
   }
 }
 
 void InputMethodBridge::OnDidChangeFocus(View* focused_before, View* focused) {
   DCHECK_EQ(GetFocusedView(), focused);
   OnTextInputTypeChanged(focused);
   OnCaretBoundsChanged(focused);
 }
 
 ui::InputMethod* InputMethodBridge::GetHostInputMethod() const {
   return host_;
 }
 
 
 }  // namespace views