[Mac/GN] Explicitly link ApplicationServices wherever CoreGraphics is linked.

ui/snapshot/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/ui.gni")
 import("//testing/test.gni")
 
 component("snapshot") {
   sources = [
     "screenshot_grabber.cc",
@@ skipping 45 matching lines @@
       "//ui/aura",
       "//ui/compositor",
     ]
   } else {
     sources -= [ "snapshot_aura.cc" ]
   }
 
   if (is_mac) {
     libs = [
       "AppKit.framework",
+      "ApplicationServices.framework",  # Temporary hack around https://crbug.com/620127.
       "CoreGraphics.framework",
     ]
   }
 }
 
 test("snapshot_unittests") {
   sources = [
     "snapshot_aura_unittest.cc",
     "snapshot_mac_unittest.mm",
     "test/run_all_unittests.cc",
@@ skipping 16 matching lines @@
     deps += [
       "//ui/aura:test_support",
       "//ui/compositor",
       "//ui/compositor:test_support",
       "//ui/wm",
     ]
   } else {
     sources -= [ "snapshot_aura_unittest.cc" ]
   }
 }