WIP - compositor worker mega patch.

third_party/WebKit/Source/platform/graphics/CompositorMutatorClient.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 CompositorMutatorClient_h
+#define CompositorMutatorClient_h
+
+#include "base/memory/scoped_ptr.h"
+#include "platform/PlatformExport.h"
+#include "public/platform/WebCompositorMutatorClient.h"
+#include "wtf/OwnPtr.h"
+
+namespace blink {
+
+class CompositorMutator;
+struct CompositorMutations;
+
+class PLATFORM_EXPORT CompositorMutatorClient : public WebCompositorMutatorClient {
+public:
+    explicit CompositorMutatorClient(CompositorMutator*);
+    virtual ~CompositorMutatorClient();
+
+    void setNeedsMutate();
+
+    // cc::LayerTreeMutator
+    bool Mutate(base::TimeTicks timeNow, cc::LayerTreeImpl* state) override;
+    void SetClient(cc::LayerTreeMutatorClient* client) override;
+    scoped_ptr<cc::LayerTreeMutations> TakeMutations() override;
+
+ private:
+    cc::LayerTreeMutatorClient* m_client;
+    CompositorMutator* m_mutator;
+    OwnPtr<CompositorMutations> m_mutations;
+};
+
+} // namespace blink
+
+#endif // CompositorMutatorClient_h