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| 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 |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "base/memory/discardable_memory.h" |
| 6 |
| 7 #include "base/lazy_instance.h" |
| 8 |
| 9 namespace base { |
| 10 namespace { |
| 11 |
| 12 struct TypeInitializedWithPreferredValue { |
| 13 TypeInitializedWithPreferredValue() : value(DISCARDABLE_MEMORY_TYPE_NONE) { |
| 14 std::vector<DiscardableMemoryType> supported_types; |
| 15 DiscardableMemory::GetSupportedTypes(&supported_types); |
| 16 DCHECK(!supported_types.empty()); |
| 17 value = supported_types.front(); |
| 18 } |
| 19 DiscardableMemoryType value; |
| 20 }; |
| 21 LazyInstance<TypeInitializedWithPreferredValue>::Leaky |
| 22 g_discardable_memory_type = LAZY_INSTANCE_INITIALIZER; |
| 23 |
| 24 } // namespace |
| 25 |
| 26 // static |
| 27 void DiscardableMemory::SetType(DiscardableMemoryType type) { |
| 28 g_discardable_memory_type.Get().value = type; |
| 29 } |
| 30 |
| 31 // static |
| 32 DiscardableMemoryType DiscardableMemory::GetType() { |
| 33 return g_discardable_memory_type.Get().value; |
| 34 } |
| 35 |
| 36 } // namespace base |
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