libvpx: Pull from upstream

source/libvpx/vp9/decoder/vp9_decodeframe.h

Index: source/libvpx/vp9/decoder/vp9_decodeframe.h
===================================================================
--- source/libvpx/vp9/decoder/vp9_decodeframe.h	(revision 0)
+++ source/libvpx/vp9/decoder/vp9_decodeframe.h	(revision 0)
@@ -0,0 +1,21 @@
+/*
+ *  Copyright (c) 2010 The WebM 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 VP9_DECODER_VP9_DECODEFRAME_H_
+#define VP9_DECODER_VP9_DECODEFRAME_H_
+
+struct VP9Common;
+struct VP9Decompressor;
+
+void vp9_init_dequantizer(struct VP9Common *cm);
+int vp9_decode_frame(struct VP9Decompressor *cpi, const uint8_t **p_data_end);
+
+#endif  // VP9_DECODER_VP9_DECODEFRAME_H_