Split ui/display types into separate module and have Ozone depend on it

ui/ozone/ozone.gyp

Index: ui/ozone/ozone.gyp
diff --git a/ui/ozone/ozone.gyp b/ui/ozone/ozone.gyp
index 99de5b41583fc84f21d1e0efc212bbfd00a24d93..0dfb9c75c2a1a5298e7809004bb88508064b947b 100644
--- a/ui/ozone/ozone.gyp
+++ b/ui/ozone/ozone.gyp
@@ -32,6 +32,11 @@
       },
       'sources': [
         '<(platform_list_file)',
+        # common/chromeos files are excluded automatically when building with
+        # chromeos=0, by exclusion rules in filename_rules.gypi due to the
+        # 'chromeos' folder name.
+        'common/chromeos/native_display_delegate_ozone.cc',
+        'common/chromeos/native_display_delegate_ozone.h',
         'ozone_platform.cc',
         'ozone_platform.h',
         'ozone_switches.cc',
@@ -92,6 +97,11 @@
             ['exclude', '^platform/test/'],
           ]
         }],
+        ['chromeos==1', {
+          'dependencies': [
+            '<(DEPTH)/ui/display/display.gyp:display_types',
+          ],
+        }],
       ]
     },
   ],