Move libvpx from DEPS to src

third_party/libvpx/source/libvpx/vp8/encoder/x86/vp8_enc_stubs_sse2.c

Index: third_party/libvpx/source/libvpx/vp8/encoder/x86/vp8_enc_stubs_sse2.c
diff --git a/third_party/libvpx/source/libvpx/vp8/encoder/x86/vp8_enc_stubs_sse2.c b/third_party/libvpx/source/libvpx/vp8/encoder/x86/vp8_enc_stubs_sse2.c
new file mode 100644
index 0000000000000000000000000000000000000000..3dfbee368a2336460bb4857945f96e9cb4f28ddb
--- /dev/null
+++ b/third_party/libvpx/source/libvpx/vp8/encoder/x86/vp8_enc_stubs_sse2.c
@@ -0,0 +1,43 @@
+/*
+ *  Copyright (c) 2012 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"
+#include "vp8_rtcd.h"
+#include "vpx_ports/x86.h"
+#include "vp8/encoder/block.h"
+
+int vp8_mbblock_error_xmm_impl(short *coeff_ptr, short *dcoef_ptr, int dc);
+int vp8_mbblock_error_xmm(MACROBLOCK *mb, int dc)
+{
+    short *coeff_ptr =  mb->block[0].coeff;
+    short *dcoef_ptr =  mb->e_mbd.block[0].dqcoeff;
+    return vp8_mbblock_error_xmm_impl(coeff_ptr, dcoef_ptr, dc);
+}
+
+int vp8_mbuverror_xmm_impl(short *s_ptr, short *d_ptr);
+int vp8_mbuverror_xmm(MACROBLOCK *mb)
+{
+    short *s_ptr = &mb->coeff[256];
+    short *d_ptr = &mb->e_mbd.dqcoeff[256];
+    return vp8_mbuverror_xmm_impl(s_ptr, d_ptr);
+}
+
+void vp8_subtract_b_sse2_impl(unsigned char *z,  int src_stride,
+                             short *diff, unsigned char *predictor,
+                             int pitch);
+void vp8_subtract_b_sse2(BLOCK *be, BLOCKD *bd, int pitch)
+{
+    unsigned char *z = *(be->base_src) + be->src;
+    unsigned int  src_stride = be->src_stride;
+    short *diff = &be->src_diff[0];
+    unsigned char *predictor = &bd->predictor[0];
+    vp8_subtract_b_sse2_impl(z, src_stride, diff, predictor, pitch);
+}