libvpx: Pull from upstream

source/libvpx/vp9/encoder/vp9_dct.h

Index: source/libvpx/vp9/encoder/vp9_dct.h
===================================================================
--- source/libvpx/vp9/encoder/vp9_dct.h	(revision 0)
+++ source/libvpx/vp9/encoder/vp9_dct.h	(revision 0)
@@ -0,0 +1,24 @@
+/*
+ *  Copyright (c) 2013 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_ENCODER_VP9_DCT_H_
+#define VP9_ENCODER_VP9_DCT_H_
+
+void vp9_fht4x4(TX_TYPE tx_type, const int16_t *input, int16_t *output,
+                int stride);
+
+void vp9_fht8x8(TX_TYPE tx_type, const int16_t *input, int16_t *output,
+                int stride);
+
+void vp9_fht16x16(TX_TYPE tx_type, const int16_t *input, int16_t *output,
+                  int stride);
+
+#endif  // VP9_ENCODER_VP9_DCT_H_