Add run-time CHECK to smoke-test allocator overrides

base/allocator/allocator_check.h

Index: base/allocator/allocator_check.h
diff --git a/base/allocator/allocator_check.h b/base/allocator/allocator_check.h
new file mode 100644
index 0000000000000000000000000000000000000000..c3aa2cbf1efe9c2c173b108f1ec2b5854cd1d3cf
--- /dev/null
+++ b/base/allocator/allocator_check.h
@@ -0,0 +1,18 @@
+// Copyright 2015 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_ALLOCATOR_CHECK_H_
+#define BASE_ALLOCATOR_ALLOCATOR_ALLOCATOR_CHECK_H_
+
+#include "base/base_export.h"
+
+namespace base {
+namespace allocator {
+
+BASE_EXPORT bool IsAllocatorInitialized();
+
+}  // namespace allocator
+}  // namespace base
+
+#endif  // BASE_ALLOCATOR_ALLOCATOR_ALLOCATOR_CHECK_H_