Listen to Display reconfiguration and notify DisplayObservers on Mac.

ui/gfx/gfx_tests.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 21 matching lines @@
         'animation/multi_animation_unittest.cc',
         'animation/slide_animation_unittest.cc',
         'animation/tween_unittest.cc',
         'blit_unittest.cc',
         'break_list_unittest.cc',
         'canvas_unittest.cc',
         'codec/jpeg_codec_unittest.cc',
         'codec/png_codec_unittest.cc',
         'color_analysis_unittest.cc',
         'color_utils_unittest.cc',
+        'display_change_notifier_unittest.cc',
         'display_unittest.cc',
         'font_list_unittest.cc',
         'font_render_params_linux_unittest.cc',
         'geometry/box_unittest.cc',
         'geometry/cubic_bezier_unittest.cc',
         'geometry/insets_unittest.cc',
         'geometry/matrix3_unittest.cc',
         'geometry/point_unittest.cc',
         'geometry/point3_unittest.cc',
         'geometry/quad_unittest.cc',
@@ skipping 65 matching lines @@
             'font_list_unittest.cc',
             'font_unittest.cc',
             'render_text_unittest.cc',
             'text_elider_unittest.cc',
           ],
         }],
         ['OS == "android"', {
           'dependencies': [
             '../../testing/android/native_test.gyp:native_test_native_code',
           ],
+          # Do not run display_change_notifier_unittest.cc on Android because it
+          # does not compile display_observer.cc
+          'sources!': [
+            'display_change_notifier_unittest.cc',
+          ],
         }],
         ['OS=="android" or OS=="ios"', {
           'sources!': [
             'render_text_unittest.cc',
           ],
         }],
       ],
     }
   ],
   'conditions': [
     ['OS == "android"', {
       'targets': [
         {
           'target_name': 'gfx_unittests_apk',
           'type': 'none',
           'dependencies': [
             '../android/ui_android.gyp:ui_java',
             'gfx_unittests',
           ],
           'variables': {
             'test_suite_name': 'gfx_unittests',
           },
           'includes': [ '../../build/apk_test.gypi' ],
         },
       ],
     }],
   ],
 }