Adding JSEP PeerConnection glue.

content/renderer/media/peer_connection_handler_base.h

+// 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.
+
+#ifndef CONTENT_RENDERER_MEDIA_PEER_CONNECTION_HANDLER_BASE_H_
+#define CONTENT_RENDERER_MEDIA_PEER_CONNECTION_HANDLER_BASE_H_
+
+#include <map>
+#include <string>
+
+#include "base/memory/scoped_ptr.h"
+#include "base/message_loop_proxy.h"
+#include "content/common/content_export.h"
+#include "third_party/libjingle/source/talk/app/webrtc/mediastream.h"
+#include "third_party/libjingle/source/talk/app/webrtc/peerconnection.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebMediaStreamDescriptor.h"
+
+class MediaStreamDependencyFactory;
+class MediaStreamImpl;
+
+// PeerConnectionHandlerBase is the base class of a delegate for the
+// PeerConnection (JSEP or ROAP) API messages going between WebKit and native
+// PeerConnection in libjingle. ROAP PeerConnection will be removed soon.
+class CONTENT_EXPORT PeerConnectionHandlerBase
+    : NON_EXPORTED_BASE(public webrtc::PeerConnectionObserver) {
+ public:
+  PeerConnectionHandlerBase(
+      MediaStreamImpl* msi,
+      MediaStreamDependencyFactory* dependency_factory);
+
+  // Checks if a remote stream belongs to this PeerConnection.
+  virtual bool HasStream(const std::string& stream_label);
+
+  // Set the video renderer for the specified stream.
+  virtual void SetVideoRenderer(
+      const std::string& stream_label,
+      webrtc::VideoRendererWrapperInterface* renderer);
+
+ protected:
+  virtual ~PeerConnectionHandlerBase();
+
+  void AddStream(const WebKit::WebMediaStreamDescriptor& stream);
+  void RemoveStream(const WebKit::WebMediaStreamDescriptor& stream);
+  WebKit::WebMediaStreamDescriptor CreateWebKitStreamDescriptor(
+      webrtc::MediaStreamInterface* stream);
+
+  // media_stream_impl_ is a raw pointer, and is valid for the lifetime of this
+  // class. Calls to it must be done on the render thread.
+  MediaStreamImpl* media_stream_impl_;
+
+  // dependency_factory_ is a raw pointer, and is valid for the lifetime of
+  // MediaStreamImpl.
+  MediaStreamDependencyFactory* dependency_factory_;
+
+  // native_peer_connection_ is the native PeerConnection object,
+  // it handles the ICE processing and media engine.
+  talk_base::scoped_refptr<webrtc::PeerConnectionInterface>
+      native_peer_connection_;
+
+  typedef std::map<webrtc::MediaStreamInterface*,
+                   WebKit::WebMediaStreamDescriptor> RemoteStreamMap;
+  RemoteStreamMap remote_streams_;
+
+  // The message loop we are created on and on which to make calls to WebKit.
+  // This should be the render thread message loop.
+  scoped_refptr<base::MessageLoopProxy> message_loop_proxy_;
+
+  DISALLOW_COPY_AND_ASSIGN(PeerConnectionHandlerBase);
+};
+
+#endif  // CONTENT_RENDERER_MEDIA_PEER_CONNECTION_HANDLER_BASE_H_