Implement utility-side proxy resolver Mojo service.

net/proxy/mojo_proxy_resolver_impl.h

+// 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 NET_PROXY_MOJO_PROXY_RESOLVER_IMPL_H_
+#define NET_PROXY_MOJO_PROXY_RESOLVER_IMPL_H_
+
+#include <queue>
+#include <set>
+
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "net/interfaces/proxy_resolver_service.mojom.h"
+
+namespace net {
+
+class ProxyResolver;
+class ProxyResolverScriptData;
+
+class MojoProxyResolverImpl : public interfaces::ProxyResolver {
+ public:
+  explicit MojoProxyResolverImpl(scoped_ptr<net::ProxyResolver> resolver);
+
+  ~MojoProxyResolverImpl() override;
+
+ private:
+  class Job;
+
+  struct SetPacScriptRequest {
+    SetPacScriptRequest(
+        const scoped_refptr<ProxyResolverScriptData>& script_data,
+        const mojo::Callback<void(int32_t)>& callback);
+    ~SetPacScriptRequest();
+
+    // The script data for this request.
+    scoped_refptr<ProxyResolverScriptData> script_data;
+
+    // The callback to run to report the result of this request.
+    const mojo::Callback<void(int32_t)> callback;
+  };
+
+  // interfaces::ProxyResolver overrides.
+  void SetPacScript(const mojo::String& data,
+                    const mojo::Callback<void(int32_t)>& callback) override;
+  void GetProxyForUrl(
+      const mojo::String& url,
+      interfaces::ProxyResolverRequestClientPtr client) override;
+
+  void DeleteJob(Job* job);
+
+  void StartSetPacScript();
+  void SetPacScriptDone(int result);
+
+  scoped_ptr<net::ProxyResolver> resolver_;
+  std::set<Job*> resolve_jobs_;
+
+  std::queue<SetPacScriptRequest> set_pac_script_requests_;
+
+  DISALLOW_COPY_AND_ASSIGN(MojoProxyResolverImpl);
+};
+
+}  // namespace net
+
+#endif  // NET_PROXY_MOJO_PROXY_RESOLVER_IMPL_H_