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 240950)
+++ source/libvpx/test/decode_test_driver.h	(working copy)
@@ -76,6 +76,16 @@
     return detail ? detail : vpx_codec_error(&decoder_);
   }
 
+  // Passes the external frame buffer information to libvpx.
+  vpx_codec_err_t SetExternalFrameBuffers(
+      vpx_codec_frame_buffer_t *fb_list, int fb_count,
+      vpx_realloc_frame_buffer_cb_fn_t cb, void *user_priv) {
+    InitOnce();
+    return vpx_codec_set_frame_buffers(&decoder_,
+                                       fb_list, fb_count,
+                                       cb, user_priv);
+  }
+
  protected:
   virtual const vpx_codec_iface_t* CodecInterface() const = 0;
 
@@ -101,6 +111,10 @@
   // Main decoding loop
   virtual void RunLoop(CompressedVideoSource *video);
 
+  // Hook to be called before decompressing every frame.
+  virtual void PreDecodeFrameHook(const CompressedVideoSource& video,
+                                  Decoder *decoder) {}
+
   // Hook to be called on every decompressed frame.
   virtual void DecompressedFrameHook(const vpx_image_t& img,
                                      const unsigned int frame_number) {}