Move libvpx from DEPS to src

third_party/libvpx/source/libvpx/vp8/encoder/firstpass.h

Index: third_party/libvpx/source/libvpx/vp8/encoder/firstpass.h
diff --git a/third_party/libvpx/source/libvpx/vp8/encoder/firstpass.h b/third_party/libvpx/source/libvpx/vp8/encoder/firstpass.h
new file mode 100644
index 0000000000000000000000000000000000000000..c409ebca8f1bf1d357ed120b7b80e160a285881a
--- /dev/null
+++ b/third_party/libvpx/source/libvpx/vp8/encoder/firstpass.h
@@ -0,0 +1,32 @@
+/*
+ *  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_ENCODER_FIRSTPASS_H_
+#define VP8_ENCODER_FIRSTPASS_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern void vp8_init_first_pass(VP8_COMP *cpi);
+extern void vp8_first_pass(VP8_COMP *cpi);
+extern void vp8_end_first_pass(VP8_COMP *cpi);
+
+extern void vp8_init_second_pass(VP8_COMP *cpi);
+extern void vp8_second_pass(VP8_COMP *cpi);
+extern void vp8_end_second_pass(VP8_COMP *cpi);
+
+extern size_t vp8_firstpass_stats_sz(unsigned int mb_count);
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP8_ENCODER_FIRSTPASS_H_