Fix OSK flickering issue

content/renderer/ime_event_guard.h

Index: content/renderer/ime_event_guard.h
diff --git a/content/renderer/ime_event_guard.h b/content/renderer/ime_event_guard.h
index 811540e988b5c0397baafd6de1d3d3d849406fd9..9b96da478418ce3e4145de30f53e6e2ec5c84417 100644
--- a/content/renderer/ime_event_guard.h
+++ b/content/renderer/ime_event_guard.h
@@ -8,14 +8,17 @@
 namespace content {
 class RenderWidget;
 
-// Simple RAII object for handling IME events. Calls StartHandlingImeEvent on
-// construction and FinishHandlingImeEvent on destruction.
+// Simple RAII object for guarding IME updates. Calls OnImeGuardStart on
+// construction and OnImeGuardFinish on destruction.
 class ImeEventGuard {
  public:
   explicit ImeEventGuard(RenderWidget* widget);
+  ImeEventGuard(RenderWidget* widget, bool from_non_ime);
   ~ImeEventGuard();
+
  private:
   RenderWidget* widget_;
+  bool from_non_ime_;
 };
 }