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Issue 2043183002: Update to Chromium //base at Chromium commit 01cb97b2e09618bbc3a60c7348f0a844eea20547. (Closed) Base URL: https://github.com/domokit/base.git@master
Patch Set: Created 4 years, 6 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 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 // This file contains utility functions and classes that help the 5 // This file contains utility functions and classes that help the
6 // implementation, and management of the Callback objects. 6 // implementation, and management of the Callback objects.
7 7
8 #ifndef BASE_CALLBACK_INTERNAL_H_ 8 #ifndef BASE_CALLBACK_INTERNAL_H_
9 #define BASE_CALLBACK_INTERNAL_H_ 9 #define BASE_CALLBACK_INTERNAL_H_
10 10
11 #include <stddef.h> 11 #include <stddef.h>
12 12
13 #include "base/atomic_ref_count.h" 13 #include "base/atomic_ref_count.h"
14 #include "base/base_export.h" 14 #include "base/base_export.h"
15 #include "base/macros.h" 15 #include "base/macros.h"
16 #include "base/memory/ref_counted.h" 16 #include "base/memory/ref_counted.h"
17 #include "base/memory/scoped_ptr.h" 17 #include "base/memory/scoped_ptr.h"
18 #include "base/template_util.h" 18 #include "base/template_util.h"
19 19
20 template <typename T>
21 class ScopedVector;
22
23 namespace base { 20 namespace base {
24 namespace internal { 21 namespace internal {
25 class CallbackBase; 22 class CallbackBase;
26 23
27 // BindStateBase is used to provide an opaque handle that the Callback 24 // BindStateBase is used to provide an opaque handle that the Callback
28 // class can use to represent a function object with bound arguments. It 25 // class can use to represent a function object with bound arguments. It
29 // behaves as an existential type that is used by a corresponding 26 // behaves as an existential type that is used by a corresponding
30 // DoInvoke function to perform the function execution. This allows 27 // DoInvoke function to perform the function execution. This allows
31 // us to shield the Callback class from the types of the bound argument via 28 // us to shield the Callback class from the types of the bound argument via
32 // "type erasure." 29 // "type erasure."
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225 222
226 template <typename T> 223 template <typename T>
227 typename enable_if<IsMoveOnlyType<T>::value, T>::type CallbackForward(T& t) { 224 typename enable_if<IsMoveOnlyType<T>::value, T>::type CallbackForward(T& t) {
228 return t.Pass(); 225 return t.Pass();
229 } 226 }
230 227
231 } // namespace internal 228 } // namespace internal
232 } // namespace base 229 } // namespace base
233 230
234 #endif // BASE_CALLBACK_INTERNAL_H_ 231 #endif // BASE_CALLBACK_INTERNAL_H_
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