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 |