Roll src/third_party/boringssl/src 48e2be247..a81967b47

https://boringssl.googlesource.com/boringssl/+log/48e2be247a02a727487b19e745fcf6c24cc8823d..a81967b47c5eba78aedccd2bc3cb3fb95fe80bd0

BUG=none

Review-Url: https://codereview.chromium.org/2607143002
Cr-Commit-Position: refs/heads/master@{#440968}

DEPS

@@ -72,7 +72,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling BoringSSL
   # and whatever else without interference from each other.
-  'boringssl_revision': '48e2be247a02a727487b19e745fcf6c24cc8823d',
+  'boringssl_revision': 'a81967b47c5eba78aedccd2bc3cb3fb95fe80bd0',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling google-toolbox-for-mac
   # and whatever else without interference from each other.

third_party/boringssl/BUILD.generated.gni

@@ -174,7 +174,6 @@ crypto_sources = [
   "src/crypto/obj/obj.c",
   "src/crypto/obj/obj_dat.h",
   "src/crypto/obj/obj_xref.c",
-  "src/crypto/obj/obj_xref.h",
   "src/crypto/pem/pem_all.c",
   "src/crypto/pem/pem_info.c",
   "src/crypto/pem/pem_lib.c",