It is time.

ui/gl/gl.gyp

 # Copyright (c) 2012 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 38 matching lines @@
         'android/surface_texture.h',
         'android/surface_texture_listener.cc',
         'android/surface_texture_listener.h',
         'gl_bindings.h',
         'gl_bindings_skia_in_process.cc',
         'gl_bindings_skia_in_process.h',
         'gl_context.cc',
         'gl_context.h',
         'gl_context_android.cc',
         'gl_context_mac.mm',
-        'gl_context_ozone.cc',
         'gl_context_osmesa.cc',
         'gl_context_osmesa.h',
         'gl_context_stub.cc',
         'gl_context_stub.h',
         'gl_context_stub_with_extensions.cc',
         'gl_context_stub_with_extensions.h',
         'gl_context_win.cc',
         'gl_context_x11.cc',
         'gl_export.h',
         'gl_fence.cc',
         'gl_fence.h',
         'gl_fence_arb.cc',
         'gl_fence_arb.h',
         'gl_fence_nv.cc',
         'gl_fence_nv.h',
         'gl_gl_api_implementation.cc',
         'gl_gl_api_implementation.h',
         'gl_image.h',
         'gl_image_memory.cc',
         'gl_image_memory.h',
         'gl_image_ref_counted_memory.cc',
         'gl_image_ref_counted_memory.h',
         'gl_image_shared_memory.cc',
         'gl_image_shared_memory.h',
         'gl_image_stub.cc',
         'gl_image_stub.h',
         'gl_implementation.cc',
         'gl_implementation.h',
         'gl_implementation_android.cc',
-        'gl_implementation_ozone.cc',
         'gl_implementation_mac.cc',
         'gl_implementation_win.cc',
         'gl_implementation_x11.cc',
         'gl_osmesa_api_implementation.cc',
         'gl_osmesa_api_implementation.h',
         'gl_share_group.cc',
         'gl_share_group.h',
         'gl_state_restorer.cc',
         'gl_state_restorer.h',
         'gl_surface.cc',
         'gl_surface.h',
         'gl_surface_android.cc',
         'gl_surface_mac.cc',
         'gl_surface_stub.cc',
         'gl_surface_stub.h',
         'gl_surface_win.cc',
         'gl_surface_x11.cc',
         'gl_surface_osmesa.cc',
         'gl_surface_osmesa.h',
-        'gl_surface_ozone.cc',
         'gl_switches.cc',
         'gl_switches.h',
         'gl_version_info.cc',
         'gl_version_info.h',
         'gpu_switching_manager.cc',
         'gpu_switching_manager.h',
         'gpu_switching_observer.h',
         'scoped_binders.cc',
         'scoped_binders.h',
         'scoped_make_current.cc',
@@ skipping 176 matching lines @@
             'system_monitor_posix.cc',
           ],
           'defines': [
             'GL_GLEXT_PROTOTYPES',
             'EGL_EGLEXT_PROTOTYPES',
           ],
         }],
         ['OS!="android"', {
           'sources/': [ ['exclude', '^android/'] ],
         }],
-        ['use_ozone==1', {
-          'dependencies': [
-            '../ozone/ozone.gyp:ozone',
-            '../ozone/ozone.gyp:ozone_base',
-          ],
-        }],
         ['OS=="android" and android_webview_build==0', {
           'dependencies': [
             '../android/ui_android.gyp:ui_java',
           ],
         }],
       ],
     },
     {
       'target_name': 'gl_unittest_utils',
       'type': 'static_library',
@@ skipping 47 matching lines @@
           ],
           'variables': {
             'jni_gen_package': 'ui/gl',
           },
           'includes': [ '../../build/jni_generator.gypi' ],
         },
       ],
     }],
   ],
 }