ozone gbm: whitelist 3 DRM ioctl code for native GpuMemoryBuffer.

content/common/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/features.gni")
 import("//build/config/ui.gni")
 import("//content/common/common.gni")
 import("//third_party/mojo/src/mojo/public/tools/bindings/mojom.gni")
+
 if (is_mac) {
   import("//build/config/mac/mac_sdk.gni")
 }
 
 if (is_chromeos && current_cpu != "arm") {
   action("libva_generate_stubs") {
     extra_header = "gpu/media/va_stub_header.fragment"
 
     script = "../../tools/generate_stubs/generate_stubs.py"
     sources = [
@@ skipping 244 matching lines @@
     # because logging is disabled there.
     deps += [ "//ppapi/proxy:ipc_sources" ]
   }
 
   if (is_ios) {
     sources -= [ "user_agent.cc" ]
     assert(false, "Need to add lots of conditions here")
   }
 
   if (use_ozone) {
+    configs += [ "//ui/ozone:vgem_map" ]
+
     deps += [
       "//ui/ozone:ozone",
       "//ui/ozone:ozone_base",
     ]
   } else {
     sources -= [
       "cursors/webcursor_ozone.cc",
       "font_list_ozone.cc",
       "gpu/client/gpu_memory_buffer_impl_ozone_native_pixmap.cc",
       "gpu/client/gpu_memory_buffer_impl_ozone_native_pixmap.h",
@@ skipping 223 matching lines @@
 
   import_dirs = [ "//mojo/services" ]
 
   deps = [
     "//content/public/common:mojo_bindings",
     "//mojo/application/public/interfaces",
     "//skia/public/interfaces",
     "//ui/mojo/geometry:interfaces",
   ]
 }