Embed a simple Mojo shell in content

components/proxy_resolver/proxy_resolver_app.h

Index: components/proxy_resolver/proxy_resolver_app.h
diff --git a/components/proxy_resolver/proxy_resolver_app.h b/components/proxy_resolver/proxy_resolver_app.h
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+// Copyright 2015 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 COMPONENTS_PROXY_RESOLVER_PROXY_RESOLVER_APP_H_
+#define COMPONENTS_PROXY_RESOLVER_PROXY_RESOLVER_APP_H_
+
+#include "base/macros.h"
+#include "net/interfaces/proxy_resolver_service.mojom.h"
+#include "third_party/mojo/src/mojo/public/cpp/application/application_delegate.h"
+#include "third_party/mojo/src/mojo/public/cpp/application/interface_factory.h"
+
+namespace proxy_resolver {
+
+class ProxyResolverApp
+    : public mojo::ApplicationDelegate,
+      public mojo::InterfaceFactory<net::interfaces::ProxyResolverFactory> {
+ public:
+  ProxyResolverApp();
+  ~ProxyResolverApp() override;
+
+ private:
+  // mojo::ApplicationDelegate:
+  bool ConfigureIncomingConnection(
+      mojo::ApplicationConnection* connection) override;
+
+  // mojo::InterfaceFactory<net::interfaces::ProxyResolverFactory>:
+  void Create(mojo::ApplicationConnection* connection,
+              mojo::InterfaceRequest<net::interfaces::ProxyResolverFactory>
+                  request) override;
+
+  DISALLOW_COPY_AND_ASSIGN(ProxyResolverApp);
+};
+
+}  // namespace proxy_resolver
+
+#endif  // COMPONENTS_PROXY_RESOLVER_PROXY_RESOLVER_APP_H_