Revert r128507 "Revert r128436 "relanding: disabled workspace_window_resizer test. fixed access-aft…

ui/aura/aura.gyp

 # Copyright (c) 2012 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': [
     {
@@ skipping 57 matching lines @@
         'gestures/gesture_point.cc',
         'gestures/gesture_point.h',
         'gestures/velocity_calculator.cc',
         'gestures/velocity_calculator.h',
         'gestures/gesture_sequence.cc',
         'gestures/gesture_sequence.h',
         'layout_manager.cc',
         'layout_manager.h',
         'monitor.cc',
         'monitor.h',
+        'monitor_change_observer_x11.cc',
+        'monitor_change_observer_x11.h',
         'monitor_manager.cc',
         'monitor_manager.h',
         'single_monitor_manager.h',
         'single_monitor_manager.cc',
         'root_window_host.h',
         'root_window_host_linux.cc',
         'root_window_host_linux.h',
         'root_window_host_mac.h',
         'root_window_host_mac.mm',
         'root_window_host_win.cc',
@@ skipping 11 matching lines @@
         'window_delegate.h',
         'window_observer.h',
       ],
       'conditions': [
         ['OS=="mac"', {
           'sources/': [
             ['exclude', 'client/dispatcher_client.cc'],
             ['exclude', 'client/dispatcher_client.h'],
           ],
         }],
+        ['OS=="linux"', {
+          'link_settings': {
+            'libraries': [
+              '-lXrandr',
+            ],
+          },
+        }],
       ],
     },
     {
       'target_name': 'test_support_aura',
       'type': 'static_library',
       'dependencies': [
         '../../skia/skia.gyp:skia',
         '../../testing/gtest.gyp:gtest',
         '../ui.gyp:ui',
         'aura',
@@ skipping 84 matching lines @@
         # osmesa GL implementation is used on linux.
         ['OS=="linux"', {
           'dependencies': [
             '<(DEPTH)/third_party/mesa/mesa.gyp:osmesa',
           ],
         }],
       ],
     },
   ],
 }