libvpx: Pull from upstream

source/libvpx/vpx/vpx_external_frame_buffer.h

Index: source/libvpx/vpx/vpx_external_frame_buffer.h
===================================================================
--- source/libvpx/vpx/vpx_external_frame_buffer.h	(revision 247498)
+++ source/libvpx/vpx/vpx_external_frame_buffer.h	(working copy)
@@ -1,61 +0,0 @@
-/*
- *  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 VPX_VPX_EXTERNAL_FRAME_BUFFER_H_
-#define VPX_VPX_EXTERNAL_FRAME_BUFFER_H_
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include "./vpx_integer.h"
-
-/*!\brief The maximum number of work buffers used by libvpx.
- */
-#define VPX_MAXIMUM_WORK_BUFFERS 1
-
-/*!\brief The maximum number of reference buffers that a VP9 encoder may use.
- */
-#define VP9_MAXIMUM_REF_BUFFERS 8
-
-/*!\brief External frame buffer
- *
- * This structure is used to hold external frame buffers passed into the
- * decoder by the application.
- */
-typedef struct vpx_codec_frame_buffer {
-  uint8_t *data;    /**< Pointer to the data buffer */
-  size_t size;      /**< Size of data in bytes */
-  void *frame_priv;  /**< Frame's private data */
-} vpx_codec_frame_buffer_t;
-
-/*!\brief realloc frame buffer callback prototype
- *
- * This callback is invoked by the decoder to notify the application one
- * of the external frame buffers must increase in size, in order for the
- * decode call to complete. The callback must allocate at least new_size in
- * bytes and assign it to fb->data. Then the callback must set fb->size to
- * the allocated size. The application does not need to align the allocated
- * data. The callback is usually triggered by a frame size change. On success
- * the callback must return 0. Any failure the callback must return a value
- * less than 0.
- *
- * \param[in] user_priv    User's private data
- * \param[in] new_size     Size in bytes needed by the buffer.
- * \param[in/out] fb       Pointer to frame buffer to increase size.
- */
-typedef int (*vpx_realloc_frame_buffer_cb_fn_t)(
-    void *user_priv, size_t new_size, vpx_codec_frame_buffer_t *fb);
-
-#ifdef __cplusplus
-}  // extern "C"
-#endif
-
-#endif  // VPX_VPX_EXTERNAL_FRAME_BUFFER_H_