Add a field platform_private_footprint_ to ProcessMemoryTotals.

base/process/process_metrics_mac.cc

 // 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.
 
 #include "base/process/process_metrics.h"
 
 #include <mach/mach.h>
 #include <mach/mach_vm.h>
 #include <mach/shared_region.h>
 #include <stddef.h>
@@ skipping 269 matching lines @@
   usage->mapped = 0;
   usage->image = 0;
 
   ws_usage->priv = task_info_data.resident_size / 1024;
   ws_usage->shareable = 0;
   ws_usage->shared = 0;
 
   return true;
 }
 
-size_t ProcessMetrics::GetPhysicalFootprint() const {
-  if (mac::IsAtMostOS10_11())
-    return 0;
-
+ProcessMetrics::TaskVMInfo ProcessMetrics::GetTaskVMInfo() const {
+  TaskVMInfo info;
   ChromeTaskVMInfo task_vm_info;
   mach_msg_type_number_t count = ChromeTaskVMInfoCount;
   kern_return_t result =
       task_info(TaskForPid(process_), TASK_VM_INFO,
                 reinterpret_cast<task_info_t>(&task_vm_info), &count);
   if (result != KERN_SUCCESS)
-    return 0;
-  return task_vm_info.phys_footprint;
+    return info;
+
+  info.internal = task_vm_info.internal;
+  info.compressed = task_vm_info.compressed;
+  if (count == ChromeTaskVMInfoCount)
+    info.phys_footprint = task_vm_info.phys_footprint;
+  return info;
 }
 
 #define TIME_VALUE_TO_TIMEVAL(a, r) do {  \
   (r)->tv_sec = (a)->seconds;             \
   (r)->tv_usec = (a)->microseconds;       \
 } while (0)
 
 double ProcessMetrics::GetCPUUsage() {
   mach_port_t task = TaskForPid(process_);
   if (task == MACH_PORT_NULL)
@@ skipping 183 matching lines @@
       task, address, size, VM_REGION_BASIC_INFO_64,
       reinterpret_cast<vm_region_info_t>(info), &info_count, &object_name);
   // The kernel always returns a null object for VM_REGION_BASIC_INFO_64, but
   // balance it with a deallocate in case this ever changes. See 10.9.2
   // xnu-2422.90.20/osfmk/vm/vm_map.c vm_map_region.
   mach_port_deallocate(task, object_name);
   return ParseOutputFromMachVMRegion(kr);
 }
 
 }  // namespace base