Add P2PTransport interface in webkit_glue.

webkit/glue/p2p_transport.h

+// Copyright (c) 2011 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 WEBKIT_GLUE_P2P_TRANSPORT_H_
+#define WEBKIT_GLUE_P2P_TRANSPORT_H_
+
+#include <string>
+
+namespace webkit_glue {
+
+// Interface for P2P transport.
+class P2PTransport {
+ public:
+  enum State {
+    STATE_NONE = 0,
+    STATE_WRITABLE = 1,
+    STATE_READABLE = 2,
+  };
+
+  class EventHandler {
+   public:
+    virtual ~EventHandler() {}
+
+    // Called for each local candidate.
+    virtual void OnCandidateReady(const std::string& address) = 0;

[mallinath, 2011/03/29 22:41:44]

We might need some additional parameter to this function or new callback which
will signal end of candidate discovery

+
+    // Called when readable of writable state of the stream changes.
+    virtual void OnStateChange(State state) = 0;
+
+    // Called when a message received from the peer. P2PTransport keeps
+    // owneship of |data|.
+    virtual void OnMessageReceived(const char* data, size_t data_size) = 0;
+  };
+
+  virtual ~P2PTransport() {}
+
+  // Initialize transport using specified configuration.
+  virtual void Init(const std::string& config,
+                    EventHandler* event_handler) = 0;
+
+  // Add candidate received from the remote peer.
+  virtual void AddRemoteCandidate(const std::string& address) = 0;
+
+  // Send data to the other end. Caller keeps ownership of |data|.
+  virtual void Send(const char* data, int data_size) = 0;
+};
+
+}  // namespace webkit_glue
+
+#endif  // WEBKIT_GLUE_P2P_TRANSPORT_H_