events: keycodes: Remove the stateless singleton instance of KeycodeConverter

chrome/browser/chromeos/input_method/input_method_engine.cc

Index: chrome/browser/chromeos/input_method/input_method_engine.cc
diff --git a/chrome/browser/chromeos/input_method/input_method_engine.cc b/chrome/browser/chromeos/input_method/input_method_engine.cc
index 6f77a67d4a317e2326b65a6e72306851ccfb7cca..ddd35079d82aeac5aa61e2f2fa60aff7ba6b5484 100644
--- a/chrome/browser/chromeos/input_method/input_method_engine.cc
+++ b/chrome/browser/chromeos/input_method/input_method_engine.cc
@@ -137,8 +137,7 @@ void GetExtensionKeyboardEventFromKeyEvent(
   ext_event->type = (event.type() == ui::ET_KEY_RELEASED) ? "keyup" : "keydown";
 
   std::string dom_code = event.code();
-  if (dom_code ==
-      ui::KeycodeConverter::GetInstance()->InvalidKeyboardEventCode())
+  if (dom_code == ui::KeycodeConverter::InvalidKeyboardEventCode())
     dom_code = ui::KeyboardCodeToDomKeycode(event.key_code());
   ext_event->code = dom_code;
   ext_event->key_code = static_cast<int>(event.key_code());