Hook up ProfileIOData's URLRequestContext to a NetworkService.

chrome/browser/net/profile_network_context_service_factory.h

Index: chrome/browser/net/profile_network_context_service_factory.h
diff --git a/chrome/browser/net/profile_network_context_service_factory.h b/chrome/browser/net/profile_network_context_service_factory.h
new file mode 100644
index 0000000000000000000000000000000000000000..baebf1a6a4d15c20a4e956fb60297d454525af3a
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+++ b/chrome/browser/net/profile_network_context_service_factory.h
@@ -0,0 +1,46 @@
+// Copyright 2017 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.
+
+#ifndef CHROME_BROWSER_NET_PROFILE_NETWORK_CONTEXT_SERVICE_FACTORY_H_
+#define CHROME_BROWSER_NET_PROFILE_NETWORK_CONTEXT_SERVICE_FACTORY_H_
+
+#include "base/macros.h"
+#include "base/memory/singleton.h"
+#include "components/keyed_service/content/browser_context_keyed_service_factory.h"
+
+class KeyedService;
+class ProfileNetworkContextService;
+
+namespace contenet {
+class BrowserContext;
+}
+
+class ProfileNetworkContextServiceFactory
+    : public BrowserContextKeyedServiceFactory {
+ public:
+  // Returns the ProfileNetworkContextService that supports NetworkContexts for
+  // |browser_context|.
+  static ProfileNetworkContextService* GetForContext(
+      content::BrowserContext* browser_context);
+
+  // Returns the NetworkContextServiceFactory singleton.
+  static ProfileNetworkContextServiceFactory* GetInstance();
+
+ private:
+  friend struct base::DefaultSingletonTraits<
+      ProfileNetworkContextServiceFactory>;
+
+  ProfileNetworkContextServiceFactory();
+  ~ProfileNetworkContextServiceFactory() override;
+
+  // BrowserContextKeyedServiceFactory implementation:
+  KeyedService* BuildServiceInstanceFor(
+      content::BrowserContext* profile) const override;
+  content::BrowserContext* GetBrowserContextToUse(
+      content::BrowserContext* context) const override;
+
+  DISALLOW_COPY_AND_ASSIGN(ProfileNetworkContextServiceFactory);
+};
+
+#endif  // CHROME_BROWSER_NET_PROFILE_NETWORK_CONTEXT_SERVICE_FACTORY_H_