Support removal of DRI platform

ui/gfx/gfx.gyp

 # Copyright (c) 2013 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 126 matching lines @@
         'insets.h',
         'insets_base.h',
         'insets_f.cc',
         'insets_f.h',
         'interpolated_transform.cc',
         'interpolated_transform.h',
         'mac/scoped_ns_disable_screen_updates.h',
         'matrix3_f.cc',
         'matrix3_f.h',
         'native_widget_types.h',
-        'ozone/impl/dri_skbitmap.cc',
-        'ozone/impl/dri_skbitmap.h',
-        'ozone/impl/dri_surface.cc',
-        'ozone/impl/dri_surface.h',
-        'ozone/impl/dri_surface_factory.cc',
-        'ozone/impl/dri_surface_factory.h',
-        'ozone/impl/dri_wrapper.cc',
-        'ozone/impl/dri_wrapper.h',
+        'ozone/dri/dri_skbitmap.cc',
+        'ozone/dri/dri_skbitmap.h',
+        'ozone/dri/dri_surface.cc',
+        'ozone/dri/dri_surface.h',
+        'ozone/dri/dri_surface_factory.cc',
+        'ozone/dri/dri_surface_factory.h',
+        'ozone/dri/dri_wrapper.cc',
+        'ozone/dri/dri_wrapper.h',
+        'ozone/dri/hardware_display_controller.cc',
+        'ozone/dri/hardware_display_controller.h',
         'ozone/impl/file_surface_factory.cc',
         'ozone/impl/file_surface_factory.h',
-        'ozone/impl/hardware_display_controller.cc',
-        'ozone/impl/hardware_display_controller.h',
         'ozone/surface_factory_ozone.cc',
         'ozone/surface_factory_ozone.h',
         'pango_util.cc',
         'pango_util.h',
         'path.cc',
         'path.h',
         'path_aura.cc',
         'path_gtk.cc',
         'path_win.cc',
         'path_win.h',
@@ skipping 198 matching lines @@
             'render_text.cc',
             'render_text.h',
             'text_utils_skia.cc',
           ],
         }],
         ['use_pango==1', {
           'dependencies': [
             '<(DEPTH)/build/linux/system.gyp:pangocairo',
           ],
         }],
-        ['use_ozone==1', {
+        ['ozone_platform_dri==1', {
           'dependencies': [
           '<(DEPTH)/build/linux/system.gyp:dridrm',
           ],
         }],
       ],
       'target_conditions': [
         # Need 'target_conditions' to override default filename_rules to include
         # the file on iOS.
         ['OS == "ios"', {
           'sources/': [
@@ skipping 20 matching lines @@
          ],
          'variables': {
            'jni_gen_package': 'ui/gfx',
          },
          'includes': [ '../../build/jni_generator.gypi' ],
        },
      ],
     }],
   ],
 }