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

ui/base/ime/input_method_base.cc

Index: ui/base/ime/input_method_base.cc
diff --git a/ui/base/ime/input_method_base.cc b/ui/base/ime/input_method_base.cc
index 44d52fa292043fb1b275404b4f6baf6c93ce0ba4..8ee7698dd647c3f6f56f4182eb5a788f082f8126 100644
--- a/ui/base/ime/input_method_base.cc
+++ b/ui/base/ime/input_method_base.cc
@@ -14,7 +14,8 @@ namespace ui {
 InputMethodBase::InputMethodBase()
   : delegate_(NULL),
     text_input_client_(NULL),
-    system_toplevel_window_focused_(false) {
+    system_toplevel_window_focused_(false),
+    is_candidate_popup_open_(false) {
 }
 
 InputMethodBase::~InputMethodBase() {
@@ -132,6 +133,18 @@ void InputMethodBase::NotifyTextInputStateChanged(
                     OnTextInputStateChanged(client));
 }
 
+void InputMethodBase::NotifyCandidateWindowStateChanged() {
+  bool new_state = IsCandidatePopupOpen();
+  if (!is_candidate_popup_open_ && new_state) {
+    text_input_client_->OnCandidateWindowShow();
+  } else if (is_candidate_popup_open_ && new_state) {
+    text_input_client_->OnCandidateWindowUpdate();
+  } else if (is_candidate_popup_open_ && !new_state) {
+    text_input_client_->OnCandidateWindowHide();
+  }
+  is_candidate_popup_open_ = new_state;
+}
+
 void InputMethodBase::SetFocusedTextInputClientInternal(
     TextInputClient* client) {
   TextInputClient* old = text_input_client_;