Make the v8 Isolate used in the proxy resolver explicit.

chrome/browser/net/proxy_service_factory.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 "chrome/browser/net/proxy_service_factory.h"
 
 #include "base/command_line.h"
 #include "base/string_number_conversions.h"
 #include "base/threading/thread.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 57 matching lines @@
     PrefService* pref_service) {
   return new PrefProxyConfigTrackerImpl(pref_service);
 }
 #endif  // defined(OS_CHROMEOS)
 
 // static
 net::ProxyService* ProxyServiceFactory::CreateProxyService(
     net::NetLog* net_log,
     net::URLRequestContext* context,
     net::ProxyConfigService* proxy_config_service,
+    v8::Isolate* v8_default_isolate,
     const CommandLine& command_line) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
 #if defined(OS_IOS)
   bool use_v8 = false;
 #else
   bool use_v8 = !command_line.HasSwitch(switches::kWinHttpProxyResolver);
   if (use_v8 && command_line.HasSwitch(switches::kSingleProcess)) {
     // See the note about V8 multithreading in net/proxy/proxy_resolver_v8.h
     // to understand why we have this limitation.
@@ skipping 28 matching lines @@
       dhcp_factory.set_enabled(false);
     }
 
     proxy_service = net::CreateProxyServiceUsingV8ProxyResolver(
         proxy_config_service,
         num_pac_threads,
         new net::ProxyScriptFetcherImpl(context),
         dhcp_factory.Create(context),
         context->host_resolver(),
         net_log,
-        context->network_delegate());
+        context->network_delegate(),
+        v8_default_isolate);
 #endif  // defined(OS_IOS)
   } else {
     proxy_service = net::ProxyService::CreateUsingSystemProxyResolver(
         proxy_config_service,
         num_pac_threads,
         net_log);
   }
 
   return proxy_service;
 }