Introducing SurfaceReferenceFactory

cc/surfaces/surface_embedding.cc

Index: cc/surfaces/surface_embedding.cc
diff --git a/cc/surfaces/surface_embedding.cc b/cc/surfaces/surface_embedding.cc
new file mode 100644
index 0000000000000000000000000000000000000000..5df028661ee2890f4a063d63a201a596a2f52207
--- /dev/null
+++ b/cc/surfaces/surface_embedding.cc
@@ -0,0 +1,23 @@
+// 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::RemoveReference(
+    CompositorFrameMetadata* metadata) {
+  metadata->satisfies_sequences.push_back(seq_.sequence);
+}
+
+void SurfaceEmbeddingUsingSequence::AddReference() {
+  seq_ = owner()->GetSurfaceSequenceGenerator()->CreateSurfaceSequence();
+  RequireSequence(seq_);
+}
+
+void SurfaceEmbeddingUsingSequence::RemoveReference() {
+  SatisfySequence(seq_);
+}
+
+}  // namespace cc