Use a utility process for the Mojo v8 proxy resolver.

chrome/browser/net/proxy_service_factory.cc

Index: chrome/browser/net/proxy_service_factory.cc
diff --git a/chrome/browser/net/proxy_service_factory.cc b/chrome/browser/net/proxy_service_factory.cc
index f5db798d6b267d19d5bd225bbc915139966d8cb5..40c5b32e7ebe03013567a9853f0177f0adc3063d 100644
--- a/chrome/browser/net/proxy_service_factory.cc
+++ b/chrome/browser/net/proxy_service_factory.cc
@@ -4,6 +4,8 @@
 
 #include "chrome/browser/net/proxy_service_factory.h"
 
+#include <string>
+
 #include "base/command_line.h"
 #include "base/profiler/scoped_tracker.h"
 #include "base/strings/string_number_conversions.h"
@@ -11,6 +13,7 @@
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/io_thread.h"
 #include "chrome/browser/net/pref_proxy_config_tracker_impl.h"
+#include "chrome/browser/net/utility_process_mojo_proxy_resolver_factory.h"
 #include "chrome/common/chrome_switches.h"
 #include "content/public/browser/browser_thread.h"
 #include "net/base/net_log.h"
@@ -137,7 +140,14 @@ net::ProxyService* ProxyServiceFactory::CreateProxyService(
     dhcp_proxy_script_fetcher = dhcp_factory.Create(context);
 #endif
 
-    if (command_line.HasSwitch(switches::kV8PacMojoInProcess)) {
+    if (command_line.HasSwitch(switches::kV8PacMojoOutOfProcess)) {
+      proxy_service = net::CreateProxyServiceUsingMojoFactory(
+          chrome_browser_net::UtilityProcessMojoProxyResolverFactory::
+              GetInstance(),
+          proxy_config_service, new net::ProxyScriptFetcherImpl(context),
+          dhcp_proxy_script_fetcher, context->host_resolver(), net_log,
+          network_delegate);
+    } else if (command_line.HasSwitch(switches::kV8PacMojoInProcess)) {
       proxy_service = net::CreateProxyServiceUsingMojoInProcess(
           proxy_config_service, new net::ProxyScriptFetcherImpl(context),
           dhcp_proxy_script_fetcher, context->host_resolver(), net_log,