Add a field platform_private_footprint_ to ProcessMemoryTotals.

base/process/process_metrics.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.
 
 // This file contains routines for gathering resource statistics for processes
 // running on the system.
 
 #ifndef BASE_PROCESS_PROCESS_METRICS_H_
 #define BASE_PROCESS_PROCESS_METRICS_H_
 
@@ skipping 150 matching lines @@
   // is more efficient on Mac OS X, as the two can be retrieved with a single
   // system call.
   bool GetCommittedAndWorkingSetKBytes(CommittedKBytes* usage,
                                        WorkingSetKBytes* ws_usage) const;
 
   // Returns the physical footprint, only available on macOS 10.11+. This
   // measures anonymous, non-discardable memory. Returns 0 on error, or if the
   // measurement was unavailable.
   size_t GetPhysicalFootprint() const;
 
+  // Returns the sum of internal and compressed memory. This measures anonymous,
+  // non-discardable memory, excluding IOKit.
+  size_t GetInternalAndCompressed() const;

[Primiano Tucci (use gerrit), 2017/04/25 12:43:35]

Not an owner here but I guess an "unit" in the name somehow would be nice, like,
dunno
GetInternalAndCompressedBytes()
GetInternalAndCompressedMemory()

(or maybe could be just an extra optional output argument of GetMemoryBytes
below?)

+
   // Returns private, shared, and total resident bytes. |locked_bytes| refers to
   // bytes that must stay resident. |locked_bytes| only counts bytes locked by
   // this task, not bytes locked by the kernel.
   bool GetMemoryBytes(size_t* private_bytes,
                       size_t* shared_bytes,
                       size_t* resident_bytes,
                       size_t* locked_bytes) const;
 #endif
 
   // Returns the CPU usage in percent since the last time this method or
@@ skipping 299 matching lines @@
   SystemDiskInfo disk_info_;
 #endif
 #if defined(OS_CHROMEOS)
   SwapInfo swap_info_;
 #endif
 };
 
 }  // namespace base
 
 #endif  // BASE_PROCESS_PROCESS_METRICS_H_