compositor-worker: cc->blink mutation plumbing

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

+// 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.
+
+#ifndef CompositorMutationsCallback_h
+#define CompositorMutationsCallback_h
+
+#include "cc/animation/layer_tree_mutations_callback.h"
+#include "platform/PlatformExport.h"
+#include "platform/graphics/CompositorMutation.h"
+#include "platform/heap/Handle.h"
+
+namespace blink {
+
+class CompositorMutationsTarget;
+
+class CompositorMutationsCallback : public cc::LayerTreeMutationsCallback {
+public:
+    CompositorMutationsCallback(PassOwnPtr<CompositorMutations>, CompositorMutationsTarget*);
+    ~CompositorMutationsCallback() override {}
+
+    // cc::LayerTreeMutationsCallback
+    void ApplyLayerTreeMutations() override;
+
+private:
+    OwnPtr<CompositorMutations> m_mutations;
+    CompositorMutationsTarget* m_target;
+};
+
+} // namespace blink
+
+#endif // CompositorMutationsCallback_h