compositor-worker: cc->blink mutation plumbing

third_party/WebKit/Source/platform/graphics/CompositorMutationsCallback.cpp

+// Copyright 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 "platform/graphics/CompositorMutationsCallback.h"
+
+#include "platform/graphics/CompositorMutationsTarget.h"
+
+namespace blink {
+
+CompositorMutationsCallback::CompositorMutationsCallback(PassOwnPtr<CompositorMutations> mutations, CompositorMutationsTarget* target)
+    : m_mutations(mutations)
+    , m_target(target)
+{
+}
+
+void CompositorMutationsCallback::ApplyLayerTreeMutations()
+{
+    m_target->applyMutations(*m_mutations);
+}
+
+} // namespace blink