Update libvpx snapshot to v0.9.7-p1 (Cayuga).

source/libvpx/vpx/vp8dx.h

 /*
  *  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.
  */
 
 
 #include "vp8.h"
 
 /*!\defgroup vp8_decoder WebM VP8 Decoder
  * \ingroup vp8
  *
  * @{
  */
 /*!\file
  * \brief Provides definitions for using the VP8 algorithm within the vpx Decoder
  *        interface.
  */
 #ifndef VP8DX_H
 #define VP8DX_H
-#include "vpx/vpx_codec_impl_top.h"
+#include "vpx_codec_impl_top.h"
 
 /*!\name Algorithm interface for VP8
  *
  * This interface provides the capability to decode raw VP8 streams, as would
  * be found in AVI files and other non-Flash uses.
  * @{
  */
 extern vpx_codec_iface_t  vpx_codec_vp8_dx_algo;
 extern vpx_codec_iface_t* vpx_codec_vp8_dx(void);
 /*!@} - end algorithm interface member group*/
@@ skipping 31 matching lines @@
  */
 
 
 VPX_CTRL_USE_TYPE(VP8D_GET_LAST_REF_UPDATES,   int *)
 VPX_CTRL_USE_TYPE(VP8D_GET_FRAME_CORRUPTED,    int *)
 
 
 /*! @} - end defgroup vp8_decoder */
 
 
-#include "vpx/vpx_codec_impl_bottom.h"
+#include "vpx_codec_impl_bottom.h"
 #endif