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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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_BASE_SIMPLE_ENCLOSED_REGION_H_ | 5 #ifndef CC_BASE_SIMPLE_ENCLOSED_REGION_H_ |
6 #define CC_BASE_SIMPLE_ENCLOSED_REGION_H_ | 6 #define CC_BASE_SIMPLE_ENCLOSED_REGION_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "cc/base/cc_export.h" | 10 #include "cc/base/cc_export.h" |
11 #include "ui/gfx/rect.h" | 11 #include "ui/gfx/geometry/rect.h" |
12 | 12 |
13 namespace cc { | 13 namespace cc { |
14 | 14 |
15 class Region; | 15 class Region; |
16 | 16 |
17 // A constant-sized approximation of a Region. The SimpleEnclosedRegion may | 17 // A constant-sized approximation of a Region. The SimpleEnclosedRegion may |
18 // exclude points in its approximation (may have false negatives) but will never | 18 // exclude points in its approximation (may have false negatives) but will never |
19 // include a point that would not be in the actual Region (no false positives). | 19 // include a point that would not be in the actual Region (no false positives). |
20 class CC_EXPORT SimpleEnclosedRegion { | 20 class CC_EXPORT SimpleEnclosedRegion { |
21 public: | 21 public: |
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113 const SimpleEnclosedRegion& a, | 113 const SimpleEnclosedRegion& a, |
114 const SimpleEnclosedRegion& b) { | 114 const SimpleEnclosedRegion& b) { |
115 SimpleEnclosedRegion result = a; | 115 SimpleEnclosedRegion result = a; |
116 result.Union(b); | 116 result.Union(b); |
117 return result; | 117 return result; |
118 } | 118 } |
119 | 119 |
120 } // namespace cc | 120 } // namespace cc |
121 | 121 |
122 #endif // CC_BASE_SIMPLE_ENCLOSED_REGION_H_ | 122 #endif // CC_BASE_SIMPLE_ENCLOSED_REGION_H_ |
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