1 files changed, 44 insertions, 0 deletions
diff --git a/gfx/thebes/gfxPlatformWorker.h b/gfx/thebes/gfxPlatformWorker.h
new file mode 100644
index 0000000000..047c7c9989
--- /dev/null
+++ b/gfx/thebes/gfxPlatformWorker.h
@@ -0,0 +1,44 @@
+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * 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 GFX_PLATFORM_WORKER_H
+#define GFX_PLATFORM_WORKER_H
+
+#include "mozilla/ThreadLocal.h"
+#include "mozilla/RefPtr.h"
+
+namespace mozilla {
+namespace dom {
+class WeakWorkerRef;
+}  // namespace dom
+
+namespace gfx {
+class DrawTarget;
+}  // namespace gfx
+}  // namespace mozilla
+
+/**
+ * Threadlocal instance of gfxPlatform data that may be used/shared on a DOM
+ * worker thread.
+ */
+class gfxPlatformWorker final {
+ public:
+  static gfxPlatformWorker* Get();
+  static void Shutdown();
+
+  RefPtr<mozilla::gfx::DrawTarget> ScreenReferenceDrawTarget();
+
+ private:
+  explicit gfxPlatformWorker(RefPtr<mozilla::dom::WeakWorkerRef>&& aWorkerRef);
+  ~gfxPlatformWorker();
+
+  static MOZ_THREAD_LOCAL(gfxPlatformWorker*) sInstance;
+
+  RefPtr<mozilla::dom::WeakWorkerRef> mWorkerRef;
+
+  RefPtr<mozilla::gfx::DrawTarget> mScreenReferenceDrawTarget;
+};
+
+#endif  // GFX_PLATFORM_WORKER_H