1 files changed, 55 insertions, 0 deletions
diff --git a/gfx/ipc/VsyncBridgeChild.h b/gfx/ipc/VsyncBridgeChild.h
new file mode 100644
index 0000000000..a0727ce5fe
--- /dev/null
+++ b/gfx/ipc/VsyncBridgeChild.h
@@ -0,0 +1,55 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#ifndef include_gfx_ipc_VsyncBridgeChild_h
+#define include_gfx_ipc_VsyncBridgeChild_h
+
+#include "mozilla/RefPtr.h"
+#include "mozilla/gfx/PVsyncBridgeChild.h"
+
+namespace mozilla {
+namespace gfx {
+
+class VsyncIOThreadHolder;
+
+class VsyncBridgeChild final : public PVsyncBridgeChild {
+  friend class NotifyVsyncTask;
+
+ public:
+  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(VsyncBridgeChild, final)
+
+  static RefPtr<VsyncBridgeChild> Create(
+      RefPtr<VsyncIOThreadHolder> aThread, const uint64_t& aProcessToken,
+      Endpoint<PVsyncBridgeChild>&& aEndpoint);
+
+  void Close();
+
+  void ActorDestroy(ActorDestroyReason aWhy) override;
+  void ProcessingError(Result aCode, const char* aReason) override;
+
+  void NotifyVsync(const VsyncEvent& aVsync, const layers::LayersId& aLayersId);
+
+  void HandleFatalError(const char* aMsg) override;
+
+ private:
+  VsyncBridgeChild(RefPtr<VsyncIOThreadHolder>, const uint64_t& aProcessToken);
+  virtual ~VsyncBridgeChild();
+
+  void Open(Endpoint<PVsyncBridgeChild>&& aEndpoint);
+
+  void NotifyVsyncImpl(const VsyncEvent& aVsync,
+                       const layers::LayersId& aLayersId);
+
+  bool IsOnVsyncIOThread() const;
+
+ private:
+  RefPtr<VsyncIOThreadHolder> mThread;
+  uint64_t mProcessToken;
+};
+
+}  // namespace gfx
+}  // namespace mozilla
+
+#endif  // include_gfx_ipc_VsyncBridgeChild_h