Fix a bug that break the vp8 fragment decoder.

(issue #882).

Change-Id: I2ca7f96d390c4eaec0473c50cb01b903d0bd3ee6
diff --git a/test/decode_test_driver.cc b/test/decode_test_driver.cc
index 0ef4f7b..852d90e 100644
--- a/test/decode_test_driver.cc
+++ b/test/decode_test_driver.cc
@@ -110,4 +110,12 @@
   RunLoop(video, dec_cfg);
 }
 
+void DecoderTest::set_cfg(const vpx_codec_dec_cfg_t &dec_cfg) {
+  memcpy(&cfg_, &dec_cfg, sizeof(cfg_));
+}
+
+void DecoderTest::set_flags(const vpx_codec_flags_t flags) {
+  flags_ = flags;
+}
+
 }  // namespace libvpx_test