compositor-worker: Remove code from cc_blink

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

Index: third_party/WebKit/Source/platform/graphics/CompositorMutableStateProvider.h
diff --git a/third_party/WebKit/Source/platform/graphics/CompositorMutableStateProvider.h b/third_party/WebKit/Source/platform/graphics/CompositorMutableStateProvider.h
new file mode 100644
index 0000000000000000000000000000000000000000..3f1b8fce503c79944579e0fb93137155ae976462
--- /dev/null
+++ b/third_party/WebKit/Source/platform/graphics/CompositorMutableStateProvider.h
@@ -0,0 +1,37 @@
+// 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 CompositorMutableStateProvider_h
+#define CompositorMutableStateProvider_h
+
+#include "platform/PlatformExport.h"
+#include "wtf/PassOwnPtr.h"
+
+#include <cstdint>
+
+namespace cc {
+class LayerTreeImpl;
+} // namespace cc
+
+namespace blink {
+
+class CompositorMutableState;
+struct CompositorMutations;
+
+// This class is a window onto compositor-owned state. It vends out wrappers
+// around per-element bits of this state.
+class PLATFORM_EXPORT CompositorMutableStateProvider {
+public:
+    CompositorMutableStateProvider(cc::LayerTreeImpl*, CompositorMutations*);
+    ~CompositorMutableStateProvider();
+
+    PassOwnPtr<CompositorMutableState> getMutableStateFor(uint64_t elementId);
+private:
+    cc::LayerTreeImpl* m_state;
+    CompositorMutations* m_mutations;
+};
+
+} // namespace blink
+
+#endif // CompositorMutableStateProvider_h