mac: Periodically shim new malloc zones immediately after startup.

base/allocator/allocator_interception_mac.h

 // Copyright 2017 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_INTERCEPTION_MAC_H_
 #define BASE_ALLOCATOR_ALLOCATOR_INTERCEPTION_MAC_H_
 
 #include <stddef.h>
 
 #include "base/base_export.h"
@@ skipping 22 matching lines @@
 // Intercepts calls to default and purgeable malloc zones. Intercepts Core
 // Foundation and Objective-C allocations.
 // Has no effect on the default malloc zone if the allocator shim already
 // performs that interception.
 BASE_EXPORT void InterceptAllocationsMac();
 
 // Updates all malloc zones to use their original functions.
 // Also calls ClearAllMallocZonesForTesting.
 BASE_EXPORT void UninterceptMallocZonesForTesting();
 
+// Periodically checks for, and shims new malloc zones. Stops checking after 1
+// minute.
+BASE_EXPORT void PeriodicallyShimNewMallocZones();
+
 }  // namespace allocator
 }  // namespace base
 
 #endif  // BASE_ALLOCATOR_ALLOCATOR_INTERCEPTION_MAC_H_