[Mac/GN] Set up the component build.

ui/events/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")
 import("//ui/ozone/ozone.gni")
 
 if (is_android) {
   import("//build/config/android/rules.gni")
@@ skipping 64 matching lines @@
     "//ui/gfx/geometry",
   ]
 
   if (use_x11) {
     public_deps += [ "//ui/events/keycodes:x11" ]
   }
 
   if (!is_ios) {
     deps += [ "//ipc:param_traits" ]
   }
+
+  if (is_mac) {
+    libs = [
+      "AppKit.framework",
+      "Carbon.framework",
+    ]
+  }
 }
 
 component("events") {
   sources = [
     "cocoa/cocoa_event_utils.h",
     "cocoa/cocoa_event_utils.mm",
     "cocoa/events_mac.mm",
     "event.cc",
     "event.h",
     "event_dispatcher.cc",
@@ skipping 99 matching lines @@
       "android/key_event_utils.cc",
       "android/key_event_utils.h",
       "android/motion_event_android.cc",
       "android/motion_event_android.h",
     ]
     deps += [
       ":keyevent_jni_headers",
       ":motionevent_jni_headers",
     ]
   }
+
+  if (is_mac) {
+    libs = [ "AppKit.framework" ]
+  }
 }
 
 component("gesture_detection") {
   sources = [
     "gesture_detection/bitset_32.h",
     "gesture_detection/filtered_gesture_provider.cc",
     "gesture_detection/filtered_gesture_provider.h",
     "gesture_detection/gesture_configuration.cc",
     "gesture_detection/gesture_configuration.h",
     "gesture_detection/gesture_detection_export.h",
@@ skipping 243 matching lines @@
   generate_jar_jni("motionevent_jni_headers") {
     jni_package = "ui"
     classes = [ "android/view/MotionEvent.class" ]
   }
 
   generate_jar_jni("keyevent_jni_headers") {
     jni_package = "ui"
     classes = [ "android/view/KeyEvent.class" ]
   }
 }