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

ui/base/ime/input_method_base.h

Index: ui/base/ime/input_method_base.h
diff --git a/ui/base/ime/input_method_base.h b/ui/base/ime/input_method_base.h
index 105b08daf656f4256dcc2153714585335cbd8401..99c3f3c32d382b60389368f6a9fa4f04e48953a4 100644
--- a/ui/base/ime/input_method_base.h
+++ b/ui/base/ime/input_method_base.h
@@ -90,6 +90,8 @@ class UI_EXPORT InputMethodBase : NON_EXPORTED_BASE(public InputMethod) {
     return system_toplevel_window_focused_;
   }
 
+  void NotifyCandidateWindowStateChanged();
+
  private:
   void SetFocusedTextInputClientInternal(TextInputClient* client);
 
@@ -100,6 +102,8 @@ class UI_EXPORT InputMethodBase : NON_EXPORTED_BASE(public InputMethod) {
 
   bool system_toplevel_window_focused_;
 
+  bool is_candidate_popup_open_;
+
   DISALLOW_COPY_AND_ASSIGN(InputMethodBase);
 };