headless: Make it possible to configure an HTTP proxy

headless/public/headless_browser.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 HEADLESS_PUBLIC_HEADLESS_BROWSER_H_
 #define HEADLESS_PUBLIC_HEADLESS_BROWSER_H_
 
 #include <string>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "headless/public/headless_export.h"
+#include "net/base/host_port_pair.h"
 #include "net/base/ip_endpoint.h"
 
 namespace base {
 class MessagePump;
 class SingleThreadTaskRunner;
 }
 
 namespace gfx {
 class Size;
 }
@@ skipping 35 matching lines @@
 
   class Builder;
 
   // Command line options to be passed to browser.
   int argc;
   const char** argv;
 
   std::string user_agent;
   std::string navigator_platform;
 
+  // Address at which DevTools should listen for connections. Disabled by
+  // default.
   net::IPEndPoint devtools_endpoint;
 
+  // Address of the HTTP/HTTPS proxy server to use. The system proxy settings
+  // are used by default.
+  net::HostPortPair proxy_server;
+
   // Optional message pump that overrides the default. Must outlive the browser.
   base::MessagePump* message_pump;
 
  private:
   Options(int argc, const char** argv);
 };
 
 class HeadlessBrowser::Options::Builder {
  public:
   Builder(int argc, const char** argv);
+  Builder();
   ~Builder();
 
   Builder& SetUserAgent(const std::string& user_agent);
   Builder& EnableDevToolsServer(const net::IPEndPoint& endpoint);
   Builder& SetMessagePump(base::MessagePump* message_pump);
+  Builder& SetProxyServer(const net::HostPortPair& proxy_server);
 
   Options Build();
 
  private:
   Options options_;
 
   DISALLOW_COPY_AND_ASSIGN(Builder);
 };
 
 // Main entry point for running the headless browser. This function constructs
 // the headless browser instance, passing it to the given
 // |on_browser_start_callback| callback. Note that since this function executes
 // the main loop, it will only return after HeadlessBrowser::Shutdown() is
 // called, returning the exit code for the process.
 int HeadlessBrowserMain(
     const HeadlessBrowser::Options& options,
     const base::Callback<void(HeadlessBrowser*)>& on_browser_start_callback);
 
 }  // namespace headless
 
 #endif  // HEADLESS_PUBLIC_HEADLESS_BROWSER_H_