[headless] Use version for product name and user agent.

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 <memory>
 #include <string>
 #include <unordered_map>
@@ skipping 110 matching lines @@
   // implementantion is selected by default. Setting this to an empty
   // string can be used to disable GL rendering (e.g., WebGL support).
   std::string gl_implementation;
 
   // Names of mojo services exposed by the browser to the renderer. These
   // services will be added to the browser's service manifest.
   std::unordered_set<std::string> mojo_service_names;
 
   // Default per-context options, can be specialized on per-context basis.
 
+  std::string product_name_and_version;
   std::string user_agent;
 
   // Address of the HTTP/HTTPS proxy server to use. The system proxy settings
   // are used by default.
   net::HostPortPair proxy_server;
 
   // Comma-separated list of rules that control how hostnames are mapped. See
   // chrome::switches::kHostRules for a description for the format.
   std::string host_resolver_rules;
 
@@ skipping 40 matching lines @@
 
   Builder& EnableDevToolsServer(const net::IPEndPoint& endpoint);
   Builder& SetMessagePump(base::MessagePump* message_pump);
   Builder& SetSingleProcessMode(bool single_process_mode);
   Builder& SetDisableSandbox(bool disable_sandbox);
   Builder& SetGLImplementation(const std::string& gl_implementation);
   Builder& AddMojoServiceName(const std::string& mojo_service_name);
 
   // Per-context settings.
 
+  Builder& SetProductNameAndVersion(
+      const std::string& product_name_and_version);
   Builder& SetUserAgent(const std::string& user_agent);
   Builder& SetProxyServer(const net::HostPortPair& proxy_server);
   Builder& SetHostResolverRules(const std::string& host_resolver_rules);
   Builder& SetWindowSize(const gfx::Size& window_size);
   Builder& SetUserDataDir(const base::FilePath& user_data_dir);
   Builder& SetIncognitoMode(bool incognito_mode);
   Builder& SetOverrideWebPreferencesCallback(
       base::Callback<void(WebPreferences*)> callback);
   Builder& SetCrashReporterEnabled(bool enabled);
   Builder& SetCrashDumpsDir(const base::FilePath& dir);
@@ skipping 33 matching lines @@
 // the main loop, it will only return after HeadlessBrowser::Shutdown() is
 // called, returning the exit code for the process. It is not possible to
 // initialize the browser again after it has been torn down.
 int HeadlessBrowserMain(
     HeadlessBrowser::Options options,
     const base::Callback<void(HeadlessBrowser*)>& on_browser_start_callback);
 
 }  // namespace headless
 
 #endif  // HEADLESS_PUBLIC_HEADLESS_BROWSER_H_