1 files changed, 44 insertions, 0 deletions
diff --git a/gfx/layers/wr/OMTAController.h b/gfx/layers/wr/OMTAController.h
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+++ b/gfx/layers/wr/OMTAController.h
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+/* -*- 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 mozilla_layers_OMTAController_h
+#define mozilla_layers_OMTAController_h
+
+#include <unordered_map>
+
+#include "mozilla/layers/LayersTypes.h"  // for LayersId
+#include "nsISerialEventTarget.h"
+#include "nsISupportsImpl.h"
+#include "nsTArrayForwardDeclare.h"
+
+namespace mozilla {
+namespace layers {
+
+/**
+ * This class just delegates the jank animations notification to the compositor
+ * thread from the sampler thread.
+ */
+class OMTAController final {
+  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(OMTAController)
+
+ public:
+  explicit OMTAController(LayersId aRootLayersId)
+      : mRootLayersId(aRootLayersId) {}
+
+  using JankedAnimations =
+      std::unordered_map<LayersId, nsTArray<uint64_t>, LayersId::HashFn>;
+  void NotifyJankedAnimations(JankedAnimations&& aJankedAnimations) const;
+
+ private:
+  ~OMTAController() = default;
+
+  LayersId mRootLayersId;
+};
+
+}  // namespace layers
+}  // namespace mozilla
+
+#endif  // mozilla_layers_OMTAController_h