[Mac] Implement the system dictionary popup by implementing NSTextInput methods.

content/content_common.gypi

 # Copyright (c) 2011 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.
 
 {
   'targets': [
     {
       'target_name': 'content_common',
       'type': '<(library)',
       'dependencies': [
         '../base/base.gyp:base',
         '../ipc/ipc.gyp:ipc',
         '../skia/skia.gyp:skia',
         '../third_party/icu/icu.gyp:icuuc',
         '../third_party/npapi/npapi.gyp:npapi',
         '../third_party/WebKit/Source/WebKit/chromium/WebKit.gyp:webkit',
         '../ui/gfx/gl/gl.gyp:gl',
+        '../ui/ui.gyp:ui_base',
         '../webkit/support/webkit_support.gyp:appcache',
         '../webkit/support/webkit_support.gyp:blob',
         '../webkit/support/webkit_support.gyp:database',
         '../webkit/support/webkit_support.gyp:fileapi',
       ],
       'include_dirs': [
         '..',
       ],
       'export_dependent_settings': [
         '../base/base.gyp:base',
@@ skipping 243 matching lines @@
         }],
         ['enable_gpu==1', {
           'dependencies': [
             '../gpu/gpu.gyp:command_buffer_service',
           ],
         }],
       ],
     },
   ],
 }