Implement HostPortAllocator.

remoting/host/host_port_allocator.h

Index: remoting/host/host_port_allocator.h
diff --git a/remoting/host/host_port_allocator.h b/remoting/host/host_port_allocator.h
new file mode 100644
index 0000000000000000000000000000000000000000..df02734ca6ff866e0393cb34fc530279cd30754f
--- /dev/null
+++ b/remoting/host/host_port_allocator.h
@@ -0,0 +1,84 @@
+// 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.
+
+// An implementation of cricket::PortAllocator for libjingle that is
+// used by the remoting host. The only difference from
+// cricket::HttpPortAllocator is that it uses Chromium's HTTP stack
+// when creating relay sessions.
+
+#ifndef REMOTING_HOST_HOST_PORT_ALLOCATOR_H_
+#define REMOTING_HOST_HOST_PORT_ALLOCATOR_H_
+
+#include <set>
+
+#include "base/memory/scoped_ptr.h"
+#include "remoting/host/url_fetcher.h"
+#include "third_party/libjingle/source/talk/p2p/client/httpportallocator.h"
+
+namespace net {
+class URLRequestContextGetter;
+}  // namespace net
+
+namespace remoting {
+
+struct NetworkSettings;
+
+class HostPortAllocatorSession

[Wez, 2012/04/27 23:23:21]

Does this need to be defined in the header?  It's not a public part of the
interface, is it?

[Sergey Ulanov, 2012/04/28 00:05:27]

Done.

+    : public cricket::HttpPortAllocatorSessionBase {
+ public:
+  HostPortAllocatorSession(
+      cricket::HttpPortAllocatorBase* allocator,
+      const std::string& channel_name,
+      int component,
+      const std::vector<talk_base::SocketAddress>& stun_hosts,
+      const std::vector<std::string>& relay_hosts,
+      const std::string& relay,
+      const scoped_refptr<net::URLRequestContextGetter>& url_context);
+  virtual ~HostPortAllocatorSession();
+
+  // cricket::HttpPortAllocatorBase overrides.
+  virtual void ConfigReady(cricket::PortConfiguration* config) OVERRIDE;
+  virtual void SendSessionRequest(const std::string& host, int port) OVERRIDE;
+
+ private:
+  void OnRequestDone(UrlFetcher* url_fetcher,
+                     const net::URLRequestStatus& status,
+                     int response_code,
+                     const std::string& response);

[Wez, 2012/04/27 23:23:21]

OnRequestDone -> OnSessionRequestDone

[Sergey Ulanov, 2012/04/28 00:05:27]

Done.

+
+  scoped_refptr<net::URLRequestContextGetter> url_context_;
+  std::set<UrlFetcher*> url_fetchers_;
+
+  DISALLOW_COPY_AND_ASSIGN(HostPortAllocatorSession);
+};
+
+class HostPortAllocator : public cricket::HttpPortAllocatorBase {
+ public:
+  static scoped_ptr<HostPortAllocator> Create(
+      const scoped_refptr<net::URLRequestContextGetter>& url_context,
+      const NetworkSettings& network_settings);

[Wez, 2012/04/27 23:23:21]

Add a comment explaining what this class does that a non-Host-specific one
wouldn't.

[Sergey Ulanov, 2012/04/28 00:05:27]

There was already a comment about it at the top of the file. Moved it here.

+
+  virtual ~HostPortAllocator();
+
+  // cricket::HttpPortAllocatorBase overrides.
+  virtual cricket::PortAllocatorSession* CreateSession(
+      const std::string& channel_name,
+      int component) OVERRIDE;
+
+ private:
+  HostPortAllocator(
+      const scoped_refptr<net::URLRequestContextGetter>& url_context,
+      scoped_ptr<talk_base::NetworkManager> network_manager,
+      scoped_ptr<talk_base::PacketSocketFactory> socket_factory);
+
+  scoped_refptr<net::URLRequestContextGetter> url_context_;
+  scoped_ptr<talk_base::NetworkManager> network_manager_;
+  scoped_ptr<talk_base::PacketSocketFactory> socket_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(HostPortAllocator);
+};
+
+}  // namespace remoting
+
+#endif  // REMOTING_HOST_HOST_PORT_ALLOCATOR_H_