Revert of Separating SCTP code from BaseChannel/MediaChannel.

webrtc/media/base/hybriddataengine.h

Index: webrtc/media/base/hybriddataengine.h
diff --git a/webrtc/media/base/hybriddataengine.h b/webrtc/media/base/hybriddataengine.h
new file mode 100644
index 0000000000000000000000000000000000000000..341f054868053a9982d72523bcdd185a94b40fd6
--- /dev/null
+++ b/webrtc/media/base/hybriddataengine.h
@@ -0,0 +1,60 @@
+/*
+ *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef WEBRTC_MEDIA_BASE_HYBRIDDATAENGINE_H_
+#define WEBRTC_MEDIA_BASE_HYBRIDDATAENGINE_H_
+
+#include <memory>
+#include <string>
+#include <vector>
+
+#include "webrtc/media/base/codec.h"
+#include "webrtc/media/base/mediachannel.h"
+#include "webrtc/media/base/mediaengine.h"
+
+namespace cricket {
+
+class HybridDataEngine : public DataEngineInterface {
+ public:
+  // Takes ownership.
+  HybridDataEngine(DataEngineInterface* first,
+                   DataEngineInterface* second)
+      : first_(first),
+        second_(second) {
+    codecs_ = first_->data_codecs();
+    codecs_.insert(
+        codecs_.end(),
+        second_->data_codecs().begin(),
+        second_->data_codecs().end());
+  }
+
+  virtual DataMediaChannel* CreateChannel(DataChannelType data_channel_type,
+                                          const MediaConfig& config) {
+    DataMediaChannel* channel = NULL;
+    if (first_) {
+      channel = first_->CreateChannel(data_channel_type, config);
+    }
+    if (!channel && second_) {
+      channel = second_->CreateChannel(data_channel_type, config);
+    }
+    return channel;
+  }
+
+  virtual const std::vector<DataCodec>& data_codecs() { return codecs_; }
+
+ private:
+  std::unique_ptr<DataEngineInterface> first_;
+  std::unique_ptr<DataEngineInterface> second_;
+  std::vector<DataCodec> codecs_;
+};
+
+}  // namespace cricket
+
+#endif  // WEBRTC_MEDIA_BASE_HYBRIDDATAENGINE_H_