third_party/WebKit/Source/core/layout/HitTestCache.h - Issue 2809363002: Rewrite references to "wtf/" to "platform/wtf/" in core/layout.

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Side by Side Diff: third_party/WebKit/Source/core/layout/HitTestCache.h

Issue 2809363002: Rewrite references to "wtf/" to "platform/wtf/" in core/layout. (Closed)

Patch Set: Created 3 years, 8 months ago

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1 // Copyright (c) 2015 The Chromium Authors. All rights reserved.	1 // Copyright (c) 2015 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 HitTestCache_h	5 #ifndef HitTestCache_h

6 #define HitTestCache_h	6 #define HitTestCache_h

7	7

8 #include "core/CoreExport.h"	8 #include "core/CoreExport.h"

9 #include "core/layout/HitTestResult.h"	9 #include "core/layout/HitTestResult.h"

10 #include "platform/heap/Handle.h"	10 #include "platform/heap/Handle.h"

11 #include "wtf/Noncopyable.h"	11 #include "platform/wtf/Noncopyable.h"

12 #include "wtf/Vector.h"	12 #include "platform/wtf/Vector.h"

13	13

14 namespace blink {	14 namespace blink {

15	15

16 // This object implements a cache for storing successful hit tests to DOM nodes	16 // This object implements a cache for storing successful hit tests to DOM nodes

17 // in the visible viewport. The cache is cleared on dom modifications,	17 // in the visible viewport. The cache is cleared on dom modifications,

18 // scrolling, CSS style modifications.	18 // scrolling, CSS style modifications.

19 //	19 //

20 // Multiple hit tests can occur when processing events. Typically the DOM	20 // Multiple hit tests can occur when processing events. Typically the DOM

21 // doesn't change when each event is processed so in order to decrease the time	21 // doesn't change when each event is processed so in order to decrease the time

22 // spent processing the events a hit cache is useful. For example a GestureTap	22 // spent processing the events a hit cache is useful. For example a GestureTap

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72 };	72 };

73	73

74 unsigned update_index_;	74 unsigned update_index_;

75 HeapVector<HitTestResult, HIT_TEST_CACHE_SIZE> items_;	75 HeapVector<HitTestResult, HIT_TEST_CACHE_SIZE> items_;

76 uint64_t dom_tree_version_;	76 uint64_t dom_tree_version_;

77 };	77 };

78	78

79 } // namespace blink	79 } // namespace blink

80	80

81 #endif // HitTestCache_h	81 #endif // HitTestCache_h

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