Refactoring display configuration state to allow generic state objects

ui/display/display.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': [
     {
       'target_name': 'display',
       'type': '<(component)',
       'dependencies': [
         '../../base/base.gyp:base',
         '../../ui/gfx/gfx.gyp:gfx_geometry',
       ],
       'defines': [
         'DISPLAY_IMPLEMENTATION',
       ],
       'sources': [
+        'chromeos/display_mode.cc',
+        'chromeos/display_mode.h',
+        'chromeos/display_snapshot.cc',
+        'chromeos/display_snapshot.h',
         'chromeos/native_display_delegate.h',
         'chromeos/native_display_observer.h',
         'chromeos/output_configurator.cc',
         'chromeos/output_configurator.h',
         'chromeos/x11/display_util.cc',
         'chromeos/x11/display_util.h',
+        'chromeos/x11/display_mode_x11.cc',
+        'chromeos/x11/display_mode_x11.h',
+        'chromeos/x11/display_snapshot_x11.cc',
+        'chromeos/x11/display_snapshot_x11.h',
         'chromeos/x11/native_display_delegate_x11.cc',
         'chromeos/x11/native_display_delegate_x11.h',
         'chromeos/x11/native_display_event_dispatcher_x11.cc',
         'chromeos/x11/native_display_event_dispatcher_x11.h',
         'chromeos/x11/touchscreen_delegate_x11.cc',
         'chromeos/x11/touchscreen_delegate_x11.h',
         'display_constants.h',
         'display_export.h',
       ],
       'conditions': [
         ['use_x11 == 1', {
           'dependencies': [
             '../../build/linux/system.gyp:x11',
             '../../build/linux/system.gyp:xext',
             '../../build/linux/system.gyp:xi',
             '../../build/linux/system.gyp:xrandr',
           ],
         }],
       ],
     },
+    {
+      'target_name': 'display_test_util',
+      'type': '<(component)',
+      'dependencies': [
+        '../../base/base.gyp:base',
+        '../../ui/gfx/gfx.gyp:gfx_geometry',
+        'display',
+      ],
+      'defines': [
+        'DISPLAY_IMPLEMENTATION',
+      ],
+      'sources': [
+        'chromeos/test/test_display_snapshot.cc',
+        'chromeos/test/test_display_snapshot.h',
+      ],
+    },
   ],
 }