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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 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 #include "platform/graphics/CompositorMutableStateProvider.h" | 5 #include "platform/graphics/CompositorMutableStateProvider.h" |
6 | 6 |
7 #include "cc/layers/layer_impl.h" | 7 #include "cc/layers/layer_impl.h" |
8 #include "cc/trees/layer_tree_impl.h" | 8 #include "cc/trees/layer_tree_impl.h" |
9 #include "platform/graphics/CompositorElementId.h" | 9 #include "platform/graphics/CompositorElementId.h" |
10 #include "platform/graphics/CompositorMutableProperties.h" | 10 #include "platform/graphics/CompositorMutableProperties.h" |
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32 if (!mainLayer && !scrollLayer) | 32 if (!mainLayer && !scrollLayer) |
33 return nullptr; | 33 return nullptr; |
34 | 34 |
35 // Ensure that we have an entry in the map for |elementId| but do as few | 35 // Ensure that we have an entry in the map for |elementId| but do as few |
36 // allocations and queries as possible. This will update the map only if we | 36 // allocations and queries as possible. This will update the map only if we |
37 // have not added a value for |elementId|. | 37 // have not added a value for |elementId|. |
38 auto result = m_mutations->map.add(elementId, nullptr); | 38 auto result = m_mutations->map.add(elementId, nullptr); |
39 | 39 |
40 // Only if this is a new entry do we want to allocate a new mutation. | 40 // Only if this is a new entry do we want to allocate a new mutation. |
41 if (result.isNewEntry) | 41 if (result.isNewEntry) |
42 result.storedValue->value = wrapUnique(new CompositorMutation); | 42 result.storedValue->value = WTF::wrapUnique(new CompositorMutation); |
43 | 43 |
44 return wrapUnique(new CompositorMutableState(result.storedValue->value.get(), | 44 return WTF::wrapUnique(new CompositorMutableState( |
45 mainLayer, scrollLayer)); | 45 result.storedValue->value.get(), mainLayer, scrollLayer)); |
46 } | 46 } |
47 | 47 |
48 } // namespace blink | 48 } // namespace blink |
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