Upgrade V8 to version 4.9.385.28
https://chromium.googlesource.com/v8/v8/+/4.9.385.28
FPIIM-449
Change-Id: I4b2e74289d4bf3667f2f3dc8aa2e541f63e26eb4
diff --git a/src/base/adapters.h b/src/base/adapters.h
new file mode 100644
index 0000000..f04391e
--- /dev/null
+++ b/src/base/adapters.h
@@ -0,0 +1,51 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Slightly adapted for inclusion in V8.
+// Copyright 2014 the V8 project authors. All rights reserved.
+
+#ifndef V8_BASE_ADAPTERS_H_
+#define V8_BASE_ADAPTERS_H_
+
+#include "src/base/macros.h"
+
+namespace v8 {
+namespace base {
+
+// Internal adapter class for implementing base::Reversed.
+template <typename T>
+class ReversedAdapter {
+ public:
+ typedef decltype(static_cast<T*>(nullptr)->rbegin()) Iterator;
+
+ explicit ReversedAdapter(T& t) : t_(t) {}
+ ReversedAdapter(const ReversedAdapter& ra) : t_(ra.t_) {}
+
+ Iterator begin() const { return t_.rbegin(); }
+ Iterator end() const { return t_.rend(); }
+
+ private:
+ T& t_;
+
+ DISALLOW_ASSIGN(ReversedAdapter);
+};
+
+// Reversed returns a container adapter usable in a range-based "for" statement
+// for iterating a reversible container in reverse order.
+//
+// Example:
+//
+// std::vector<int> v = ...;
+// for (int i : base::Reversed(v)) {
+// // iterates through v from back to front
+// }
+template <typename T>
+ReversedAdapter<T> Reversed(T& t) {
+ return ReversedAdapter<T>(t);
+}
+
+} // namespace base
+} // namespace v8
+
+#endif // V8_BASE_ADAPTERS_H_