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1 // Copyright 2011 The Chromium Authors. All rights reserved. | 1 // Copyright 2011 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_TREES_LAYER_TREE_HOST_IMPL_H_ | 5 #ifndef CC_TREES_LAYER_TREE_HOST_IMPL_H_ |
6 #define CC_TREES_LAYER_TREE_HOST_IMPL_H_ | 6 #define CC_TREES_LAYER_TREE_HOST_IMPL_H_ |
7 | 7 |
8 #include <stddef.h> | 8 #include <stddef.h> |
9 | 9 |
10 #include <bitset> | 10 #include <bitset> |
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702 | 702 |
703 // This function keeps track of sources of scrolls that are handled in the | 703 // This function keeps track of sources of scrolls that are handled in the |
704 // compositor side. The information gets shared by the main thread as part of | 704 // compositor side. The information gets shared by the main thread as part of |
705 // the begin_main_frame_state. Finally Use counters are updated in the main | 705 // the begin_main_frame_state. Finally Use counters are updated in the main |
706 // thread side to keep track of the frequency of scrolling with different | 706 // thread side to keep track of the frequency of scrolling with different |
707 // sources per page load. TODO(crbug.com/691886): Use GRC API to plumb the | 707 // sources per page load. TODO(crbug.com/691886): Use GRC API to plumb the |
708 // scroll source info for Use Counters. | 708 // scroll source info for Use Counters. |
709 void UpdateScrollSourceInfo(bool is_wheel_scroll); | 709 void UpdateScrollSourceInfo(bool is_wheel_scroll); |
710 | 710 |
711 bool IsScrolledBy(LayerImpl* child, ScrollNode* ancestor); | 711 bool IsScrolledBy(LayerImpl* child, ScrollNode* ancestor); |
| 712 void ShowScrollbarsForImplScroll(ElementId element_id); |
712 | 713 |
713 using UIResourceMap = std::unordered_map<UIResourceId, UIResourceData>; | 714 using UIResourceMap = std::unordered_map<UIResourceId, UIResourceData>; |
714 UIResourceMap ui_resource_map_; | 715 UIResourceMap ui_resource_map_; |
715 | 716 |
716 // Resources that were evicted by EvictAllUIResources. Resources are removed | 717 // Resources that were evicted by EvictAllUIResources. Resources are removed |
717 // from this when they are touched by a create or destroy from the UI resource | 718 // from this when they are touched by a create or destroy from the UI resource |
718 // request queue. | 719 // request queue. |
719 std::set<UIResourceId> evicted_ui_resources_; | 720 std::set<UIResourceId> evicted_ui_resources_; |
720 | 721 |
721 CompositorFrameSink* compositor_frame_sink_; | 722 CompositorFrameSink* compositor_frame_sink_; |
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869 bool has_scrolled_by_touch_; | 870 bool has_scrolled_by_touch_; |
870 | 871 |
871 bool touchpad_and_wheel_scroll_latching_enabled_; | 872 bool touchpad_and_wheel_scroll_latching_enabled_; |
872 | 873 |
873 DISALLOW_COPY_AND_ASSIGN(LayerTreeHostImpl); | 874 DISALLOW_COPY_AND_ASSIGN(LayerTreeHostImpl); |
874 }; | 875 }; |
875 | 876 |
876 } // namespace cc | 877 } // namespace cc |
877 | 878 |
878 #endif // CC_TREES_LAYER_TREE_HOST_IMPL_H_ | 879 #endif // CC_TREES_LAYER_TREE_HOST_IMPL_H_ |
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