Index: third_party/WebKit/Source/platform/graphics/CompositorMutator.h |
diff --git a/third_party/WebKit/Source/platform/graphics/CompositorMutator.h b/third_party/WebKit/Source/platform/graphics/CompositorMutator.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..02e52e8e8de76baf527166a9265ae98859e6ff87 |
--- /dev/null |
+++ b/third_party/WebKit/Source/platform/graphics/CompositorMutator.h |
@@ -0,0 +1,27 @@ |
+// 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 CompositorMutator_h |
+#define CompositorMutator_h |
+ |
+#include "platform/heap/Handle.h" |
+ |
+namespace blink { |
+ |
+class CompositorMutator : public GarbageCollectedFinalized<CompositorMutator> { |
+public: |
+ virtual ~CompositorMutator() {} |
+ |
+ DEFINE_INLINE_VIRTUAL_TRACE() {} |
+ |
+ // Called from compositor thread to run the animation frame callbacks from all |
+ // connected CompositorWorkers. |
+ // Returns true if any animation callbacks requested an animation frame |
+ // (i.e. should be reinvoked next frame). |
+ virtual bool mutate(double monotonicTimeNow) = 0; |
+}; |
+ |
+} // namespace blink |
+ |
+#endif // CompositorMutator_h |