Introducing SurfaceReferenceFactory

cc/surfaces/surface_embedding.h

+// Copyright (c) 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CC_SURFACES_SURFACE_EMBEDDING_H_
+#define CC_SURFACES_SURFACE_EMBEDDING_H_
+
+#include "cc/output/compositor_frame_metadata.h"
+#include "cc/surfaces/surface_embedding_base.h"
+#include "cc/surfaces/surfaces_export.h"
+
+namespace cc {
+
+class CC_SURFACES_EXPORT SurfaceEmbeddingUsingSequence
+    : public NON_EXPORTED_BASE(SurfaceEmbedding) {
+ public:
+  SurfaceRefPtr CreateReference(SurfaceReferenceOwner*,
+                                const SurfaceId&) const override;
+
+ protected:
+  ~SurfaceEmbeddingUsingSequence() override = default;
+
+ private:
+  void DestroyReference(SurfaceRef*, CompositorFrameMetadata*) const override;
+  void DestroyReference(SurfaceRef*) const override;
+  virtual void RequireSequence(const SurfaceId&,
+                               const SurfaceSequence&) const = 0;
+  virtual void SatisfySequence(const SurfaceSequence&) const = 0;
+};
+
+}  // namespace cc
+
+#endif  // CC_SURFACES_SURFACE_EMBEDDING_H_