net: Add a new target 'net_with_v8'.

net/proxy/proxy_service_with_v8.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 "net/proxy/proxy_service.h"
+
+#include "base/logging.h"
+#include "net/proxy/multi_threaded_proxy_resolver.h"
+#include "net/proxy/network_delegate_error_observer.h"
+#include "net/proxy/proxy_resolver.h"
+#include "net/proxy/proxy_resolver_js_bindings.h"
+#include "net/proxy/proxy_resolver_v8.h"
+#include "net/proxy/sync_host_resolver_bridge.h"
+
+namespace net {
+namespace {
+
+// This factory creates V8ProxyResolvers with appropriate javascript bindings.
+class ProxyResolverFactoryForV8 : public ProxyResolverFactory {
+ public:
+  // |async_host_resolver|, |io_loop| and |net_log| must remain
+  // valid for the duration of our lifetime.
+  // |async_host_resolver| will only be operated on |io_loop|.
+  // TODO(willchan): remove io_loop and replace it with origin_loop.
+  ProxyResolverFactoryForV8(HostResolver* async_host_resolver,
+                            MessageLoop* io_loop,
+                            base::MessageLoopProxy* origin_loop,
+                            NetLog* net_log,
+                            NetworkDelegate* network_delegate)
+      : ProxyResolverFactory(true /*expects_pac_bytes*/),
+        async_host_resolver_(async_host_resolver),
+        io_loop_(io_loop),
+        origin_loop_(origin_loop),
+        net_log_(net_log),
+        network_delegate_(network_delegate) {
+  }
+
+  virtual ProxyResolver* CreateProxyResolver() OVERRIDE {
+    // Create a synchronous host resolver wrapper that operates
+    // |async_host_resolver_| on |io_loop_|.
+    SyncHostResolverBridge* sync_host_resolver =
+        new SyncHostResolverBridge(async_host_resolver_, io_loop_);
+
+    NetworkDelegateErrorObserver* error_observer =
+        new NetworkDelegateErrorObserver(
+            network_delegate_, origin_loop_.get());
+
+    // ProxyResolverJSBindings takes ownership of |error_observer| and
+    // |sync_host_resolver|.
+    ProxyResolverJSBindings* js_bindings =
+        ProxyResolverJSBindings::CreateDefault(
+            sync_host_resolver, net_log_, error_observer);
+
+    // ProxyResolverV8 takes ownership of |js_bindings|.
+    return new ProxyResolverV8(js_bindings);
+  }
+
+ private:
+  HostResolver* const async_host_resolver_;
+  MessageLoop* io_loop_;
+  scoped_refptr<base::MessageLoopProxy> origin_loop_;
+  NetLog* net_log_;
+  NetworkDelegate* network_delegate_;
+};
+
+}  // namespace
+
+// static
+ProxyService* ProxyService::CreateUsingV8ProxyResolver(
+    ProxyConfigService* proxy_config_service,
+    size_t num_pac_threads,
+    ProxyScriptFetcher* proxy_script_fetcher,
+    DhcpProxyScriptFetcher* dhcp_proxy_script_fetcher,
+    HostResolver* host_resolver,
+    NetLog* net_log,
+    NetworkDelegate* network_delegate) {
+  DCHECK(proxy_config_service);
+  DCHECK(proxy_script_fetcher);
+  DCHECK(dhcp_proxy_script_fetcher);
+  DCHECK(host_resolver);
+
+  if (num_pac_threads == 0)
+    num_pac_threads = kDefaultNumPacThreads;
+
+  ProxyResolverFactory* sync_resolver_factory =
+      new ProxyResolverFactoryForV8(
+          host_resolver,
+          MessageLoop::current(),
+          base::MessageLoopProxy::current(),
+          net_log,
+          network_delegate);
+
+  ProxyResolver* proxy_resolver =
+      new MultiThreadedProxyResolver(sync_resolver_factory, num_pac_threads);
+
+  ProxyService* proxy_service =
+      new ProxyService(proxy_config_service, proxy_resolver, net_log);
+
+  // Configure fetchers to use for PAC script downloads and auto-detect.
+  proxy_service->SetProxyScriptFetchers(proxy_script_fetcher,
+                                        dhcp_proxy_script_fetcher);
+
+  return proxy_service;
+}
+
+}  // namespace net