Revert "Switch to BoringSSL."

third_party/boringssl/BUILD.gn

-# Copyright 2014 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-# Config for us and everybody else depending on BoringSSL.
-config("openssl_config") {
-  include_dirs = []
-  include_dirs += [ "src/include" ]
-}
-
-# Config internal to this build file.
-config("openssl_internal_config") {
-  visibility = ":*"  # Only targets in this file can depend on this.
-}
-
-# The list of BoringSSL files is kept in boringssl.gypi.
-gypi_values = exec_script(
-    "//build/gypi_to_gn.py",
-    [ rebase_path("//third_party/boringssl/boringssl.gypi") ],
-    "scope",
-    [ "//third_party/boringssl/boringssl.gypi" ])
-
-component("boringssl") {
-  sources = gypi_values.boringssl_lib_sources
-
-  direct_dependent_configs = [ ":openssl_config" ]
-
-  cflags = []
-
-  configs -= [ "//build/config/compiler:chromium_code" ]
-  configs += [ "//build/config/compiler:no_chromium_code" ]
-
-  # Also gets the include dirs from :openssl_config
-  include_dirs = [
-    "src/include",
-    # This is for arm_arch.h, which is needed by some asm files. Since the
-    # asm files are generated and kept in a different directory, they
-    # cannot use relative paths to find this file.
-    "src/crypto",
-  ]
-
-  if (cpu_arch == "x64") {
-    if (is_mac) {
-      sources += gypi_values.boringssl_mac_x86_64_sources
-    } else if (is_linux || is_android) {
-      sources += gypi_values.boringssl_linux_x86_64_sources
-    } else if (is_win) {
-      sources += gypi_values.boringssl_win_x86_64_sources
-    } else {
-      defines += [ "OPENSSL_NO_ASM" ]
-    }
-  } else if (cpu_arch == "x86") {
-    if (is_mac) {
-      sources += gypi_values.boringssl_mac_x86_sources
-    } else if (is_linux || is_android) {
-      sources += gypi_values.boringssl_linux_x86_sources
-    } else {
-      defines += [ "OPENSSL_NO_ASM" ]
-    }
-  } else if (cpu_arch == "arm") {
-    sources += gypi_values.boringssl_linux_arm_sources
-  } else {
-    defines += [ "OPENSSL_NO_ASM" ]
-  }
-}