display-compositor: Add missing dependencies for ozone in gyp.

components/display_compositor.gypi

 # Copyright 2016 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.
 
 {
   'targets': [
     {
       # GN version: //components/display_compositor:display_compositor
       'target_name': 'display_compositor',
       'type': '<(component)',
@@ skipping 30 matching lines @@
         'display_compositor/compositor_overlay_candidate_validator_mac.mm',
         'display_compositor/compositor_overlay_candidate_validator_ozone.cc',
         'display_compositor/compositor_overlay_candidate_validator_ozone.h',
         'display_compositor/display_compositor_export.h',
         'display_compositor/gl_helper.cc',
         'display_compositor/gl_helper.h',
         'display_compositor/gl_helper_readback_support.cc',
         'display_compositor/gl_helper_readback_support.h',
         'display_compositor/gl_helper_scaling.cc',
         'display_compositor/gl_helper_scaling.h',
-      ]
+      ],
+      'conditions': [
+        ['use_ozone==1', {
+          'dependencies': [
+            '../ui/ozone/ozone.gyp:ozone_base',
+          ],
+        }],
+      ],
     },
     {
       # GN version: //components/display_compositor:display_compositor_unittests
       'target_name': 'display_compositor_unittests',
       'type': '<(gtest_target_type)',
       'dependencies': [
         'display_compositor',
         '../base/base.gyp:base',
         '../base/base.gyp:test_support_base',
         '../cc/cc_tests.gyp:cc_test_support',
@@ skipping 39 matching lines @@
 
       'sources': [
         "display_compositor/display_compositor_test_suite.cc",
         "display_compositor/display_compositor_test_suite.h",
         "display_compositor/gl_helper_benchmark.cc",
         "display_compositor/run_all_unittests.cc",
       ]
     },
   ]
 }