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

base/process/process_metrics.cc

 // Copyright 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.
 
 #include "base/process/process_metrics.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/values.h"
@@ skipping 49 matching lines @@
 }
 
 double ProcessMetrics::GetPlatformIndependentCPUUsage() {
 #if defined(OS_WIN)
   return GetCPUUsage() * processor_count_;
 #else
   return GetCPUUsage();
 #endif
 }
 
-#if defined(OS_MACOSX) || defined(OS_LINUX)
+#if defined(OS_MACOSX) || defined(OS_LINUX) || defined(OS_AIX)
 int ProcessMetrics::CalculateIdleWakeupsPerSecond(
     uint64_t absolute_idle_wakeups) {
   TimeTicks time = TimeTicks::Now();
 
   if (last_absolute_idle_wakeups_ == 0) {
     // First call, just set the last values.
     last_idle_wakeups_time_ = time;
     last_absolute_idle_wakeups_ = absolute_idle_wakeups;
     return 0;
   }
@@ skipping 14 matching lines @@
   return (wakeups_delta_for_ms + time_delta / 2) / time_delta;
 }
 #else
 int ProcessMetrics::GetIdleWakeupsPerSecond() {
   NOTIMPLEMENTED();  // http://crbug.com/120488
   return 0;
 }
 #endif  // defined(OS_MACOSX) || defined(OS_LINUX)
 
 }  // namespace base