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

content/content_common.gypi

Index: content/content_common.gypi
diff --git a/content/content_common.gypi b/content/content_common.gypi
index 3cd9a5546cf5d2e8aba49d8975ffe709f4329b12..14bf6c1db6722827f2f1df9b77cf0e8b84042efa 100644
--- a/content/content_common.gypi
+++ b/content/content_common.gypi
@@ -1108,5 +1108,10 @@
         'common/gpu/gpu_memory_buffer_factory_ozone_native_pixmap.h',
       ],
     }],
+    ['use_vgem_map==1', {
+      'dependencies': [
+        '../ui/ozone/ozone.gyp:vgem_map',
+      ],
+    }],
   ],
 }