Allocator shims working on VS2015.

base/allocator/allocator_shim_win.h

Index: base/allocator/allocator_shim_win.h
diff --git a/base/allocator/allocator_shim_win.h b/base/allocator/allocator_shim_win.h
new file mode 100644
index 0000000000000000000000000000000000000000..d19a9896372be8617c12f3b8016aac92c99a0fe1
--- /dev/null
+++ b/base/allocator/allocator_shim_win.h
@@ -0,0 +1,17 @@
+// Copyright 2016 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.
+
+#ifndef BASE_ALLOCATOR_ALLOCATOR_SHIM_WIN_H_
+#define BASE_ALLOCATOR_ALLOCATOR_SHIM_WIN_H_
+
+#include <stddef.h>
+
+namespace base {
+namespace allocator {
+// Used to indicate that the shim is actually in place.
+extern bool g_is_win_shim_layer_initialized;
+}  // namespace allocator
+}  // namespace base
+
+#endif  // BASE_ALLOCATOR_ALLOCATOR_SHIM_WIN_H_