Add Chromium-only Blender WebEngine parity work

blender-5.2.0/intern/ghost/GHOST_ITimerTask.hh

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+/* SPDX-FileCopyrightText: 2001-2002 NaN Holding BV. All rights reserved.
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later */
+
+/** \file
+ * \ingroup GHOST
+ * Declaration of GHOST_ITimerTask interface class.
+ */
+
+#pragma once
+
+#include "GHOST_Types.hh"
+
+/**
+ * Interface for a timer task.
+ * Timer tasks are created by the system and can be installed by the system.
+ * After installation, the timer callback-procedure or "timer_proc" will be called
+ * periodically. You should not need to inherit this class. It is passed to the
+ * application in the timer-callback.<br>
+ * <br>
+ * Note that GHOST processes timers in the UI thread. You should ask GHOST
+ * process messages in order for the timer-callbacks to be called.
+ * \see GHOST_ISystem#installTimer
+ * \see GHOST_TimerProcPtr
+ */
+class GHOST_ITimerTask {
+ public:
+  /**
+   * Destructor.
+   */
+  virtual ~GHOST_ITimerTask() = default;
+
+  /**
+   * Returns the timer callback.
+   * \return The timer callback.
+   */
+  virtual GHOST_TimerProcPtr getTimerProc() const = 0;
+
+  /**
+   * Changes the timer callback.
+   * \param timer_proc: The timer callback.
+   */
+  virtual void setTimerProc(const GHOST_TimerProcPtr timer_proc) = 0;
+
+  /**
+   * Returns the timer user data.
+   * \return The timer user data.
+   */
+  virtual GHOST_TUserDataPtr getUserData() const = 0;
+
+  /**
+   * Changes the time user data.
+   * \param user_data: The timer user data.
+   */
+  virtual void setUserData(const GHOST_TUserDataPtr user_data) = 0;
+
+  MEM_CXX_CLASS_ALLOC_FUNCS("GHOST:GHOST_ITimerTask")
+};