GN: aix port along with linux_s390x, linux_ppc64 and linux_ppc64le support.

base/process/memory.h

 // Copyright (c) 2013 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_PROCESS_MEMORY_H_
 #define BASE_PROCESS_MEMORY_H_
 
 #include <stddef.h>
 
 #include "base/base_export.h"
@@ skipping 14 matching lines @@
 // overflow. Has no effect if the OS doesn't provide the necessary facility.
 BASE_EXPORT void EnableTerminationOnHeapCorruption();
 
 // Turns on process termination if memory runs out.
 BASE_EXPORT void EnableTerminationOnOutOfMemory();
 
 // Terminates process. Should be called only for out of memory errors.
 // Crash reporting classifies such crashes as OOM.
 BASE_EXPORT void TerminateBecauseOutOfMemory(size_t size);
 
-#if defined(OS_LINUX) || defined(OS_ANDROID)
+#if defined(OS_LINUX) || defined(OS_ANDROID) || defined(OS_AIX)
 BASE_EXPORT extern size_t g_oom_size;
 
 // The maximum allowed value for the OOM score.
 const int kMaxOomScore = 1000;
 
 // This adjusts /proc/<pid>/oom_score_adj so the Linux OOM killer will
 // prefer to kill certain process types over others. The range for the
 // adjustment is [-1000, 1000], with [0, 1000] being user accessible.
 // If the Linux system doesn't support the newer oom_score_adj range
 // of [0, 1000], then we revert to using the older oom_adj, and
@@ skipping 28 matching lines @@
 // set to NULL, otherwise it holds the memory address.
 BASE_EXPORT WARN_UNUSED_RESULT bool UncheckedMalloc(size_t size,
                                                     void** result);
 BASE_EXPORT WARN_UNUSED_RESULT bool UncheckedCalloc(size_t num_items,
                                                     size_t size,
                                                     void** result);
 
 }  // namespace base
 
 #endif  // BASE_PROCESS_MEMORY_H_