Update from https://crrev.com/311076

net/url_request/url_request_job_manager.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 "net/url_request/url_request_job_manager.h"
 
 #include <algorithm>
 
 #include "base/memory/singleton.h"
 #include "build/build_config.h"
@@ skipping 132 matching lines @@
 // static
 bool URLRequestJobManager::SupportsScheme(const std::string& scheme) {
   for (size_t i = 0; i < arraysize(kBuiltinFactories); ++i) {
     if (LowerCaseEqualsASCII(scheme, kBuiltinFactories[i].scheme))
       return true;
   }
 
   return false;
 }
 
-URLRequestJobManager::URLRequestJobManager()
-    : allowed_thread_(0),
-      allowed_thread_initialized_(false) {
+URLRequestJobManager::URLRequestJobManager() {
 }
 
 URLRequestJobManager::~URLRequestJobManager() {}
 
 }  // namespace net