libvpx: Pull from upstream

source/libvpx/test/decode_test_driver.h

Index: source/libvpx/test/decode_test_driver.h
===================================================================
--- source/libvpx/test/decode_test_driver.h	(revision 251189)
+++ source/libvpx/test/decode_test_driver.h	(working copy)
@@ -49,7 +49,7 @@
     vpx_codec_destroy(&decoder_);
   }
 
-  vpx_codec_err_t DecodeFrame(const uint8_t *cxdata, int size);
+  vpx_codec_err_t DecodeFrame(const uint8_t *cxdata, size_t size);
 
   DxDataIterator GetDxData() {
     return DxDataIterator(&decoder_);
@@ -76,8 +76,17 @@
     return detail ? detail : vpx_codec_error(&decoder_);
   }
 
+  // Passes the external frame buffer information to libvpx.
+  vpx_codec_err_t SetFrameBufferFunctions(
+      vpx_get_frame_buffer_cb_fn_t cb_get,
+      vpx_release_frame_buffer_cb_fn_t cb_release, void *user_priv) {
+    InitOnce();
+    return vpx_codec_set_frame_buffer_functions(
+        &decoder_, cb_get, cb_release, user_priv);
+  }
+
  protected:
-  virtual const vpx_codec_iface_t* CodecInterface() const = 0;
+  virtual vpx_codec_iface_t* CodecInterface() const = 0;
 
   void InitOnce() {
     if (!init_done_) {