Connecting webrtc-internals WebUI frontend with the backend

content/public/browser/webrtc_internals_interface.h

+// Copyright (c) 2013 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 CONTENT_PUBLIC_BROWSER_WEBRTC_INTERNALS_INTERFACE_H_
+#define CONTENT_PUBLIC_BROWSER_WEBRTC_INTERNALS_INTERFACE_H_
+
+#include "base/process.h"
+
+namespace content {
+// This interface is used to receive WebRTC updates.
+// An embedder may implement it and return it from ContentBrowserClient.
+class WebRTCInternalsInterface {

[juberti, 2013/01/16 01:11:21]

Not sure what the prevailing style is here, but should we call this
WebRtcObserver, like the seemingly similar MediaObserver class?

+ public:
+  // This method is called when a PeerConnection is created.
+  // |pid| is the renderer process id, |lid| is the renderer local id used to
+  // identify a PeerConnection, |url| is the url of the tab owning the
+  // PeerConnection, |servers| is the servers configuration, |constraints| is
+  // the media constraints used to initialize the PeerConnection.
+  virtual void AddPeerConnection(base::ProcessId pid,
+                                 int lid,
+                                 const std::string& url,
+                                 const std::string& servers,
+                                 const std::string& constraints) = 0;

[vrk (LEFT CHROMIUM), 2013/01/15 22:54:13]

nit: blank line here between method declaration and comment.

[jiayl, 2013/01/15 23:03:31]

Done.

+  // This method is called when PeerConnection is destroyed.
+  // |pid| is the renderer process id, |lid| is the renderer local id.
+  virtual void RemovePeerConnection(base::ProcessId pid, int lid) = 0;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_BROWSER_WEBRTC_INTERNALS_INTERFACE_H_