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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CC_LAYERS_LAYER_CLIENT_H_ | 5 #ifndef CC_LAYERS_LAYER_CLIENT_H_ |
6 #define CC_LAYERS_LAYER_CLIENT_H_ | 6 #define CC_LAYERS_LAYER_CLIENT_H_ |
7 | 7 |
8 #include <memory> | 8 #include <memory> |
9 | 9 |
10 #include "cc/base/cc_export.h" | 10 #include "cc/base/cc_export.h" |
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24 // Returns a pointer to a debug info object, if one has been computed. | 24 // Returns a pointer to a debug info object, if one has been computed. |
25 // If not, returns nullptr. | 25 // If not, returns nullptr. |
26 // If the returned pointer is non-nullptr, the caller takes | 26 // If the returned pointer is non-nullptr, the caller takes |
27 // ownership of the pointer. | 27 // ownership of the pointer. |
28 // | 28 // |
29 // A pointer to the layer is provided for the convenience of layer clients | 29 // A pointer to the layer is provided for the convenience of layer clients |
30 // which service multiple layers. | 30 // which service multiple layers. |
31 virtual std::unique_ptr<base::trace_event::ConvertableToTraceFormat> | 31 virtual std::unique_ptr<base::trace_event::ConvertableToTraceFormat> |
32 TakeDebugInfo(Layer* layer) = 0; | 32 TakeDebugInfo(Layer* layer) = 0; |
33 virtual void didUpdateMainThreadScrollingReasons() = 0; | 33 virtual void didUpdateMainThreadScrollingReasons() = 0; |
| 34 virtual void didChangeScrollbarsHidden(bool) = 0; |
34 | 35 |
35 protected: | 36 protected: |
36 virtual ~LayerClient() {} | 37 virtual ~LayerClient() {} |
37 }; | 38 }; |
38 | 39 |
39 } // namespace cc | 40 } // namespace cc |
40 | 41 |
41 #endif // CC_LAYERS_LAYER_CLIENT_H_ | 42 #endif // CC_LAYERS_LAYER_CLIENT_H_ |
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