Move ui.gyp into ui/base/ directory.

ui/views/linux_ui/linux_ui.gyp

 # Copyright 2013 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
       'target_name': 'linux_ui',
       'type': '<(component)',
       'dependencies': [
         '../../base/base.gyp:base',
         '../../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
         '../../skia/skia.gyp:skia',
+        '../base/ui_base.gyp:ui_base',
         '../native_theme/native_theme.gyp:native_theme',
         '../resources/ui_resources.gyp:ui_resources',
-        '../ui.gyp:ui',
       ],
       'defines': [
         'LINUX_UI_IMPLEMENTATION',
       ],
       'sources': [
         'linux_ui.cc',
         'linux_ui.h',
         'linux_ui_export.h',
         'status_icon_linux.cc',
         'status_icon_linux.h',
       ],
     },
   ],
 }