Incorporate comments in Dbus code and add Eol icon

chromeos/dbus/fake_update_engine_client.h

Index: chromeos/dbus/fake_update_engine_client.h
diff --git a/chromeos/dbus/fake_update_engine_client.h b/chromeos/dbus/fake_update_engine_client.h
index a1aa3aa8cbbf152dd3e8b58943ab6e2f30a18241..d0cd2741f7bd9a9dbc2409d07a7a3531d5c68dfc 100644
--- a/chromeos/dbus/fake_update_engine_client.h
+++ b/chromeos/dbus/fake_update_engine_client.h
@@ -77,6 +77,10 @@ class FakeUpdateEngineClient : public UpdateEngineClient {
   int can_rollback_call_count() const { return can_rollback_call_count_; }
 
  private:
+  void OnGetChannel(const GetChannelCallback& callback);
+
+  void OnGetEolStatus(const GetEolStatusCallback& callback);
+
   base::ObserverList<Observer> observers_;
   std::queue<UpdateEngineClient::Status> status_queue_;
   UpdateEngineClient::Status default_status_;
@@ -86,6 +90,8 @@ class FakeUpdateEngineClient : public UpdateEngineClient {
   int request_update_check_call_count_;
   int rollback_call_count_;
   int can_rollback_call_count_;
+
+  base::WeakPtrFactory<FakeUpdateEngineClient> weak_ptr_factory_;
 };
 
 }  // namespace chromeos