Introducing SurfaceReferenceFactory

cc/surfaces/surface_embedding.cc

+// 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.
+
+#include "cc/surfaces/surface_embedding.h"
+
+namespace cc {
+
+void SurfaceEmbeddingUsingSequence::DelegateReferenceImpl(
+    CompositorFrameMetadata* metadata) {
+  metadata->satisfies_sequences.push_back(seq_.sequence);
+}
+
+void SurfaceEmbeddingUsingSequence::AddReferenceImpl(
+    SurfaceEmbeddingOwner* owner) {
+  seq_ = owner->GetSurfaceSequenceGenerator()->CreateSurfaceSequence();
+  RequireSequence(seq_);
+}
+
+void SurfaceEmbeddingUsingSequence::RemoveReferenceImpl() {
+  SatisfySequence(seq_);
+}
+
+}  // namespace cc