media: unittests: depend on xdisplaycheck for isolate

media/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/android/config.gni")
 import("//build/config/arm.gni")
 import("//build/config/features.gni")
 import("//build/config/linux/pkg_config.gni")
 import("//build/config/ui.gni")
 import("//media/media_options.gni")
@@ skipping 796 matching lines @@
       "//build/config/linux:x11",
       "//build/config/linux:xext",
 
       # TODO(ajwong): Why does xext get a separate thing in //build/config/linux:BUILD.gn
       #  "//build/config/linux:xrender",
     ]
     deps = [
       ":media",
       ":shared_memory_support",
       "//base",
+      "//tools/xdisplaycheck",
       "//ui/gl",
       "//ui/gfx",
       "//ui/gfx/geometry",
     ]
   }
 }