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

content/browser/renderer_host/render_widget_host_impl.h

Index: content/browser/renderer_host/render_widget_host_impl.h
diff --git a/content/browser/renderer_host/render_widget_host_impl.h b/content/browser/renderer_host/render_widget_host_impl.h
index 31ba37237dfcbb6259f1c881962a206e270cd179..cc68ff74ca0941feb490fee42c59520fde98c9a2 100644
--- a/content/browser/renderer_host/render_widget_host_impl.h
+++ b/content/browser/renderer_host/render_widget_host_impl.h
@@ -312,6 +312,11 @@ class CONTENT_EXPORT RenderWidgetHostImpl : virtual public RenderWidgetHost,
   // display input method windows under the cursor.)
   void SetInputMethodActive(bool activate);
 
+  // Notifies the renderer changes of IME candidate window state.
+  void CandidateWindowShow();
+  void CandidateWindowUpdate();
+  void CandidateWindowHide();
+
   // Update the composition node of the renderer (or WebKit).
   // WebKit has a special node (a composition node) for input method to change
   // its text without affecting any other DOM nodes. When the input method