Embed a simple Mojo shell in content

chrome/browser/net/mojo_app_proxy_resolver_factory.cc

Index: chrome/browser/net/mojo_app_proxy_resolver_factory.cc
diff --git a/chrome/browser/net/mojo_app_proxy_resolver_factory.cc b/chrome/browser/net/mojo_app_proxy_resolver_factory.cc
new file mode 100644
index 0000000000000000000000000000000000000000..4a8b7a93d33862dfe73b1a2191a12e37356e1f07
--- /dev/null
+++ b/chrome/browser/net/mojo_app_proxy_resolver_factory.cc
@@ -0,0 +1,48 @@
+// 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.
+
+#include "chrome/browser/net/mojo_app_proxy_resolver_factory.h"
+
+#include "base/logging.h"
+#include "base/memory/singleton.h"
+#include "chrome/common/application_urls.h"
+#include "chrome/grit/generated_resources.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/mojo_app_connection.h"
+#include "url/gurl.h"
+
+// static
+MojoAppProxyResolverFactory* MojoAppProxyResolverFactory::GetInstance() {
+  DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
+  return Singleton<MojoAppProxyResolverFactory,
+                   LeakySingletonTraits<MojoAppProxyResolverFactory>>::get();
+}
+
+MojoAppProxyResolverFactory::MojoAppProxyResolverFactory() {
+  DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
+}
+
+MojoAppProxyResolverFactory::~MojoAppProxyResolverFactory() {
+  DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
+}
+
+void MojoAppProxyResolverFactory::CreateResolver(
+    const mojo::String& pac_script,
+    mojo::InterfaceRequest<net::interfaces::ProxyResolver> req,
+    net::interfaces::HostResolverPtr host_resolver,
+    net::interfaces::ProxyResolverFactoryRequestClientPtr client) {
+  DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
+  if (!resolver_factory_) {
+    content::MojoAppConnection proxy_app(
+        (GURL(application_urls::kProxyResolver)));
+    proxy_app.ConnectToService(&resolver_factory_);
+  }
+  resolver_factory_->CreateResolver(pac_script, req.Pass(),
+                                    host_resolver.Pass(), client.Pass());
+}
+
+void MojoAppProxyResolverFactory::OnConnectionError() {
+  DVLOG(1) << "Disconnection from utility process detected";
+  resolver_factory_.reset();
+}