[chromedriver] Write websocket client and sync websocket client.

chrome/test/chromedriver/net/url_request_context_getter.cc

+// Copyright (c) 2012 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/test/chromedriver/net/url_request_context_getter.h"
+
+#include <string>
+
+#include "net/proxy/proxy_config_service.h"
+#include "net/url_request/url_request_context.h"
+#include "net/url_request/url_request_context_builder.h"
+
+namespace {
+
+// Config getter that always returns direct settings.
+class ProxyConfigServiceDirect : public net::ProxyConfigService {
+ public:
+  // Overridden from ProxyConfigService:
+  virtual void AddObserver(Observer* observer) OVERRIDE {}
+  virtual void RemoveObserver(Observer* observer) OVERRIDE {}
+  virtual ConfigAvailability GetLatestProxyConfig(
+      net::ProxyConfig* config) OVERRIDE {
+    *config = net::ProxyConfig::CreateDirect();
+    return CONFIG_VALID;
+  }
+};
+
+}  // namespace
+
+URLRequestContextGetter::URLRequestContextGetter(
+    scoped_refptr<base::SingleThreadTaskRunner> network_task_runner)
+    : network_task_runner_(network_task_runner) {
+}
+
+net::URLRequestContext* URLRequestContextGetter::GetURLRequestContext() {
+  if (!url_request_context_) {
+    net::URLRequestContextBuilder builder;
+    // net::HttpServer fails to parse headers if user-agent header is blank.
+    builder.set_user_agent("chromedriver");
+    builder.DisableHttpCache();
+#if defined(OS_LINUX) || defined(OS_ANDROID)
+    builder.set_proxy_config_service(new ProxyConfigServiceDirect());
+#endif
+    url_request_context_.reset(builder.Build());
+  }
+  return url_request_context_.get();
+}
+
+scoped_refptr<base::SingleThreadTaskRunner>
+    URLRequestContextGetter::GetNetworkTaskRunner() const {
+  return network_task_runner_;
+}
+
+URLRequestContextGetter::~URLRequestContextGetter() {}