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

ui/base/ime/win/tsf_bridge.h

Index: ui/base/ime/win/tsf_bridge.h
diff --git a/ui/base/ime/win/tsf_bridge.h b/ui/base/ime/win/tsf_bridge.h
index 6256fac166adcf81093bd6cd25f32eb012090380..e82e99c6b4856e40d8c197e6a1e241c168297c4d 100644
--- a/ui/base/ime/win/tsf_bridge.h
+++ b/ui/base/ime/win/tsf_bridge.h
@@ -81,6 +81,10 @@ class UI_EXPORT TSFBridge {
   // Returns the focused text input client.
   virtual TextInputClient* GetFocusedTextInputClient() const = 0;
 
+  virtual void OnCandidateWindowShow() = 0;
+  virtual void OnCandidateWindowUpdate() = 0;
+  virtual void OnCandidateWindowHide() = 0;
+
  protected:
   // Uses GetInstance() instead.
   TSFBridge();