memory-infra: Plumb platform_private_footprint to MemoryDumpManager

base/trace_event/memory_dump_manager.cc

Index: base/trace_event/memory_dump_manager.cc
diff --git a/base/trace_event/memory_dump_manager.cc b/base/trace_event/memory_dump_manager.cc
index c3e2a4249205b18dac671ad406727baf7af984af..a43ab66fceb572f3ae96855323674a79a0ac2fca 100644
--- a/base/trace_event/memory_dump_manager.cc
+++ b/base/trace_event/memory_dump_manager.cc
@@ -103,6 +103,7 @@ void FillOsDumpFromProcessMemoryDump(
   if (pmd->has_process_totals()) {
     const ProcessMemoryTotals* totals = pmd->process_totals();
     osDump->resident_set_kb = totals->resident_set_bytes() / 1024;
+    osDump->platform_private_footprint = totals->GetPlatformPrivateFootprint();
   }
 }