ozone: Add ozone_unittests target

ui/ozone/platform/dri/dri.gypi

 # 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': {
     'internal_ozone_platform_deps': [
       'ozone_platform_dri',
     ],
+    'internal_ozone_platform_unittest_deps': [
+      'ozone_platform_dri_unittests',
+    ],
     'internal_ozone_platforms': [
       'dri',
     ],
   },
   'targets': [
     {
       'target_name': 'ozone_platform_dri',
       'type': 'static_library',
       'dependencies': [
         '../../base/base.gyp:base',
         '../../build/linux/system.gyp:dridrm',
         '../../skia/skia.gyp:skia',
         '../base/ui_base.gyp:ui_base',
         '../display/display.gyp:display_types',
         '../display/display.gyp:display_util',
         '../events/events.gyp:events',
         '../events/ozone/events_ozone.gyp:events_ozone_evdev',
         '../gfx/gfx.gyp:gfx',
         '../gfx/gfx.gyp:gfx_geometry',
+        '../gfx/ozone/gfx_ozone.gyp:gfx_ozone',
       ],
       'defines': [
         'OZONE_IMPLEMENTATION',
       ],
       'sources': [
         'chromeos/display_mode_dri.cc',
         'chromeos/display_mode_dri.h',
         'chromeos/display_snapshot_dri.cc',
         'chromeos/display_snapshot_dri.h',
         'chromeos/native_display_delegate_dri.cc',
@@ skipping 14 matching lines @@
         'dri_wrapper.h',
         'hardware_display_controller.cc',
         'hardware_display_controller.h',
         'ozone_platform_dri.cc',
         'ozone_platform_dri.h',
         'screen_manager.cc',
         'screen_manager.h',
         'scanout_surface.h',
       ],
     },
+    {
+      'target_name': 'ozone_platform_dri_unittests',
+      'type': 'none',
+      'dependencies': [
+        '../../build/linux/system.gyp:dridrm',
+        '../../skia/skia.gyp:skia',
+        '../gfx/gfx.gyp:gfx_geometry',
+        '../gfx/ozone/gfx_ozone.gyp:gfx_ozone',
+      ],
+      'export_dependent_settings': [
+        '../../build/linux/system.gyp:dridrm',
+        '../../skia/skia.gyp:skia',
+        '../gfx/gfx.gyp:gfx_geometry',
+        '../gfx/ozone/gfx_ozone.gyp:gfx_ozone',
+      ],
+      'direct_dependent_settings': {
+        'sources': [
+          'dri_surface_factory_unittest.cc',
+          'dri_surface_unittest.cc',
+          'hardware_display_controller_unittest.cc',
+          'screen_manager_unittest.cc',
+          'test/mock_dri_surface.cc',
+          'test/mock_dri_surface.h',
+          'test/mock_dri_wrapper.cc',
+          'test/mock_dri_wrapper.h',
+          'test/mock_surface_generator.cc',
+          'test/mock_surface_generator.h',
+        ],
+      },
+    },
   ],
 }