add libvpx 89cc6825 (matching current chrome canary) from repo https://chromium.googlesource.com/webm/libvpx

libs/libvpx/vp8/encoder/ratectrl.h

@@ -0,0 +1,39 @@
+/*
+ *  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 VP8_ENCODER_RATECTRL_H_
+#define VP8_ENCODER_RATECTRL_H_
+
+#include "onyx_int.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern void vp8_save_coding_context(VP8_COMP *cpi);
+extern void vp8_restore_coding_context(VP8_COMP *cpi);
+
+extern void vp8_setup_key_frame(VP8_COMP *cpi);
+extern void vp8_update_rate_correction_factors(VP8_COMP *cpi, int damp_var);
+extern int vp8_regulate_q(VP8_COMP *cpi, int target_bits_per_frame);
+extern void vp8_adjust_key_frame_context(VP8_COMP *cpi);
+extern void vp8_compute_frame_size_bounds(VP8_COMP *cpi, int *frame_under_shoot_limit, int *frame_over_shoot_limit);
+
+/* return of 0 means drop frame */
+extern int vp8_pick_frame_size(VP8_COMP *cpi);
+
+extern int vp8_drop_encodedframe_overshoot(VP8_COMP *cpi, int Q);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_RATECTRL_H_