[Ozone] Fix SoftwareOutputDevice tests

content/content_tests.gypi

 # Copyright (c) 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': {
     'layouttest_support_content_sources': [
       'public/test/layouttest_support.h',
       'public/test/nested_message_pump_android.cc',
       'public/test/nested_message_pump_android.h',
@@ skipping 313 matching lines @@
         ['use_aura==1', {
           'dependencies': [
             '../ui/aura/aura.gyp:aura_test_support',
             '../ui/resources/ui_resources.gyp:ui_test_pak',
             '../ui/wm/wm.gyp:wm',
           ],
         }],
         ['use_ozone==1', {
           'dependencies': [
             '../ui/ozone/ozone.gyp:ozone',
+            '../ui/platform_window/platform_window.gyp:platform_window',
           ],
         }],
         ['OS=="win"', {
           'dependencies': [
             '../third_party/iaccessible2/iaccessible2.gyp:iaccessible2',
           ],
         }],
         ['OS!="android" and OS!="ios"', {
           'sources': [
             'browser/compositor/test/no_transport_image_transport_factory.cc',
@@ skipping 1685 matching lines @@
                   'files': ['<(PRODUCT_DIR)/libnpapi_test_plugin.so'],
                 },
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }