Update from https://crrev.com/328418

base/trace_event/process_memory_maps_dump_provider.cc

 // Copyright 2015 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/trace_event/process_memory_maps_dump_provider.h"
 
 #include <cctype>
 #include <fstream>
 
 #include "base/logging.h"
 #include "base/process/process_metrics.h"
 #include "base/trace_event/process_memory_dump.h"
 #include "base/trace_event/process_memory_maps.h"
 
 namespace base {
 namespace trace_event {
 
-namespace {
-const char kDumperFriendlyName[] = "ProcessMemoryMaps";
-}
-
 #if defined(OS_LINUX) || defined(OS_ANDROID)
 // static
 std::istream* ProcessMemoryMapsDumpProvider::proc_smaps_for_testing = nullptr;
 
 namespace {
 
 const uint32 kMaxLineSize = 4096;
 
 bool ParseSmapsHeader(std::istream* smaps,
                       ProcessMemoryMaps::VMRegion* region) {
@@ skipping 128 matching lines @@
 }
 
 ProcessMemoryMapsDumpProvider::ProcessMemoryMapsDumpProvider() {
 }
 
 ProcessMemoryMapsDumpProvider::~ProcessMemoryMapsDumpProvider() {
 }
 
 // Called at trace dump point time. Creates a snapshot the memory maps for the
 // current process.
-bool ProcessMemoryMapsDumpProvider::DumpInto(ProcessMemoryDump* pmd) {
+bool ProcessMemoryMapsDumpProvider::OnMemoryDump(ProcessMemoryDump* pmd) {
   uint32 res = 0;
 
 #if defined(OS_LINUX) || defined(OS_ANDROID)
   if (UNLIKELY(proc_smaps_for_testing)) {
     res = ReadLinuxProcSmapsFile(proc_smaps_for_testing, pmd->process_mmaps());
   } else {
     std::ifstream proc_self_smaps("/proc/self/smaps");
     res = ReadLinuxProcSmapsFile(&proc_self_smaps, pmd->process_mmaps());
   }
 #else
   LOG(ERROR) << "ProcessMemoryMaps dump provider is supported only on Linux";
 #endif
 
   if (res > 0) {
     pmd->set_has_process_mmaps();
     return true;
   }
 
   return false;
 }
 
-const char* ProcessMemoryMapsDumpProvider::GetFriendlyName() const {
-  return kDumperFriendlyName;
-}
-
 }  // namespace trace_event
 }  // namespace base