Porting SecureSocket to use BoringSSL on OSX

runtime/bin/BUILD.gn

 # Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 import("gypi_contents.gni")
 import("../runtime_args.gni")
 import("../../build/compiled_action.gni")
 
 declare_args() {
   # Controls the kind of core snapshot linked into the standalone VM. Using a
@@ skipping 399 matching lines @@
     ]
     if (is_mac || is_ios) {
       libs = [
         "CoreFoundation.framework",
         "Security.framework",
       ]
 
       if (is_mac) {
         libs += [ "CoreServices.framework" ]
       }
-    } else {
-      deps += [ "//third_party/boringssl" ]
     }
 
+    deps += [ "//third_party/boringssl" ]
+
     if (is_fuchsia) {
       libs = [ "launchpad" ]
     }
 
     sources = io_impl_sources_gypi + builtin_impl_sources_gypi
     sources += [
                  "builtin_natives.cc",
                  "io_natives.cc",
                  "io_natives.h",
                  "log_android.cc",
@@ skipping 504 matching lines @@
   ]
   if (is_linux || is_android) {
     cflags = [ "-fPIC" ]
   }
   if (is_win) {
     libs = [ "dart.lib" ]
     abs_root_out_dir = rebase_path(root_out_dir)
     ldflags = [ "/LIBPATH:$abs_root_out_dir" ]
   }
 }