Revert of Add a webrtc{en,de}coderfactory implementation for VideoToolbox

webrtc/modules/video_coding/codecs/h264/h264_objc.mm

 /*
  *  Copyright (c) 2015 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 "webrtc/modules/video_coding/utility/qp_parser.h"
+#include "webrtc/modules/video_coding/codecs/h264/include/h264.h"
 
-#include "webrtc/common_types.h"
-#include "webrtc/modules/video_coding/utility/vp8_header_parser.h"
+#if defined(WEBRTC_IOS)
+#import <UIKit/UIKit.h>
+#endif
 
 namespace webrtc {
 
-bool QpParser::GetQp(const VCMEncodedFrame& frame, int* qp) {
-  switch (frame.CodecSpecific()->codecType) {
-    case kVideoCodecVP8:
-      // QP range: [0, 127].
-      return vp8::GetQp(frame.Buffer(), frame.Length(), qp);
-    default:
-      return false;
-  }
+bool IsH264CodecSupportedObjC() {
+#if defined(WEBRTC_VIDEO_TOOLBOX_SUPPORTED) && \
+    defined(WEBRTC_IOS)
+  // Supported on iOS8+.
+  return [[[UIDevice currentDevice] systemVersion] doubleValue] >= 8.0;
+#else
+  // TODO(tkchin): Support OS/X once we stop mixing libstdc++ and libc++ on
+  // OSX 10.9.
+  return false;
+#endif
 }
 
 }  // namespace webrtc