Revert of Delete VideoFrameFactory, CapturedFrame, and related code.

webrtc/media/engine/webrtcvideoframefactory.cc

+/*
+ *  Copyright (c) 2014 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.
+ */
+
+#include <memory>
+
+#include "webrtc/base/logging.h"
+#include "webrtc/media/engine/webrtcvideoframe.h"
+#include "webrtc/media/engine/webrtcvideoframefactory.h"
+
+namespace cricket {
+
+VideoFrame* WebRtcVideoFrameFactory::CreateAliasedFrame(
+    const CapturedFrame* aliased_frame, int width, int height) const {
+  std::unique_ptr<WebRtcVideoFrame> frame(new WebRtcVideoFrame());
+  if (!frame->Init(aliased_frame, width, height, apply_rotation_)) {
+    LOG(LS_ERROR) <<
+        "Failed to create WebRtcVideoFrame in CreateAliasedFrame.";
+    return NULL;
+  }
+  return frame.release();
+}
+
+}  // namespace cricket