Move libvpx from DEPS to src

third_party/libvpx/source/libvpx/vp8/common/rtcd.c

Index: third_party/libvpx/source/libvpx/vp8/common/rtcd.c
diff --git a/third_party/libvpx/source/libvpx/vp8/common/rtcd.c b/third_party/libvpx/source/libvpx/vp8/common/rtcd.c
new file mode 100644
index 0000000000000000000000000000000000000000..ab0e9b47fe8d0cf667a20d524573cae0638996a9
--- /dev/null
+++ b/third_party/libvpx/source/libvpx/vp8/common/rtcd.c
@@ -0,0 +1,19 @@
+/*
+ *  Copyright (c) 2011 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.
+ */
+#include "./vpx_config.h"
+#define RTCD_C
+#include "./vp8_rtcd.h"
+#include "vpx_ports/vpx_once.h"
+
+
+void vp8_rtcd()
+{
+    once(setup_rtcd_internal);
+}