Move libvpx from DEPS to src

third_party/libvpx/source/libvpx/vp8/common/swapyv12buffer.h

Index: third_party/libvpx/source/libvpx/vp8/common/swapyv12buffer.h
diff --git a/third_party/libvpx/source/libvpx/vp8/common/swapyv12buffer.h b/third_party/libvpx/source/libvpx/vp8/common/swapyv12buffer.h
new file mode 100644
index 0000000000000000000000000000000000000000..1d66cd3d62e61e6e19db5e8ef389b46d1159c63f
--- /dev/null
+++ b/third_party/libvpx/source/libvpx/vp8/common/swapyv12buffer.h
@@ -0,0 +1,27 @@
+/*
+ *  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_COMMON_SWAPYV12BUFFER_H_
+#define VP8_COMMON_SWAPYV12BUFFER_H_
+
+#include "vpx_scale/yv12config.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void vp8_swap_yv12_buffer(YV12_BUFFER_CONFIG *new_frame, YV12_BUFFER_CONFIG *last_frame);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_COMMON_SWAPYV12BUFFER_H_