NotForReview: Implement zero/one-copy texture for ozone freon using Intel DRM

ui/ozone/platform/drm/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/linux/pkg_config.gni")
 import("//ui/ozone/ozone.gni")
 
 declare_args() {
   use_mesa_platform_null = false
   use_drm_atomic = false
@@ skipping 166 matching lines @@
       "//skia",
       "//ui/events/ozone:events_ozone_evdev",
       "//ui/events/ozone:events_ozone_layout",
     ]
 
     public_configs = [ ":libgbm" ]
 
     if (use_mesa_platform_null) {
       defines += [ "USE_MESA_PLATFORM_NULL" ]
     }
+    if (current_cpu == "x86" || current_cpu == "x64") {
+      sources = [
+        "gpu/gbm_map_pixmap_intel.cc",
+        "gpu/gbm_map_pixmap_intel.h",
+      ]
+      pkg_config("libdrm_intel") {
+        packages = [ "libdrm_intel" ]
+      }
+    }
   }
 }