Use persistent memory for receiving metrics from sub-processes.

content/browser/utility_process_host_impl.cc

 // Copyright (c) 2012 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 "content/browser/utility_process_host_impl.h"
 
 #include <utility>
 
 #include "base/base_switches.h"
 #include "base/bind.h"
@@ skipping 150 matching lines @@
 #if defined(OS_LINUX)
       child_flags_(ChildProcessHost::CHILD_ALLOW_SELF),
 #else
       child_flags_(ChildProcessHost::CHILD_NORMAL),
 #endif
       started_(false),
       name_(base::ASCIIToUTF16("utility process")),
       child_token_(mojo::edk::GenerateRandomToken()),
       weak_ptr_factory_(this) {
   process_.reset(new BrowserChildProcessHostImpl(PROCESS_TYPE_UTILITY, this,
-                                                 child_token_));
+                                                 child_token_, 0, nullptr));
   mojo_child_connection_.reset(new MojoChildConnection(
       kUtilityMojoApplicationName,
       base::StringPrintf("%d_0", process_->GetData().id), child_token_,
       MojoShellContext::GetConnectorForIOThread(),
       BrowserThread::GetTaskRunnerForThread(BrowserThread::IO)));
 }
 
 UtilityProcessHostImpl::~UtilityProcessHostImpl() {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   if (is_batch_mode_)
@@ skipping 237 matching lines @@
     base::WeakPtr<UtilityProcessHostImpl> host,
     int error_code) {
   if (!host)
     return;
 
   host->OnProcessLaunchFailed(error_code);
   delete host.get();
 }
 
 }  // namespace content