ozone: Move the factory interfaces into a common target.

ui/base/ui_base.gyp

Index: ui/base/ui_base.gyp
diff --git a/ui/base/ui_base.gyp b/ui/base/ui_base.gyp
index faebd7bbba5779a294797626140508c3d7dba099..b54547348e60fc55ff67b5e657e8e4575d7be1d9 100644
--- a/ui/base/ui_base.gyp
+++ b/ui/base/ui_base.gyp
@@ -136,8 +136,6 @@
         'cursor/image_cursors.h',
         'cursor/ozone/bitmap_cursor_factory_ozone.cc',
         'cursor/ozone/bitmap_cursor_factory_ozone.h',
-        'cursor/ozone/cursor_factory_ozone.cc',
-        'cursor/ozone/cursor_factory_ozone.h',
         'default_theme_provider.cc',
         'default_theme_provider.h',
         'default_theme_provider_mac.mm',
@@ -370,6 +368,11 @@
             'resource/resource_bundle_auralinux.cc',
           ],
         }],
+        ['use_ozone==1', {
+          'dependencies': [
+            '../ozone/ozone.gyp:ozone_base',
+          ],
+        }],
         ['use_aura==1 and OS=="win"', {
           'sources/': [
             ['exclude', 'dragdrop/drag_utils_aura.cc'],