[Mac/GN] Set up the component build.

sync/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.
 
 import("//build/config/features.gni")
 import("//sync/protocol/protocol_sources.gni")
 import("//testing/test.gni")
 
 component("sync") {
   public_deps = [
@@ skipping 443 matching lines @@
     ]
   }
 
   if (is_chromeos) {
     # Required by get_session_name.cc on Chrome OS.
     deps += [ "//chromeos" ]
   }
 
   if (is_mac) {
     libs = [
-      # Required by get_session_name_mac.mm on Mac.
-      "SystemConfiguration.framework",
+      "CoreFoundation.framework",
+      "SystemConfiguration.framework",  # Required by get_session_name_mac.mm.
     ]
   }
 
   defines = [ "SYNC_IMPLEMENTATION" ]
   configs += [ "//build/config/compiler:wexit_time_destructors" ]
 }
 
 # GYP version: sync/sync_tests.gypi:test_support_sync_core
 static_library("test_support_sync_core") {
   testonly = true
@@ skipping 411 matching lines @@
       ":fake_server_jni",
       ":sync_core",
       ":test_support_sync_fake_server",
       "//base",
       "//sync/protocol:protocol",
       "//testing/gtest",
       "//url:url",
     ]
   }
 }