Add a factory and defines for native Linux surfaces.

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index 4c0225d51a784a830cbabf6ac98dc6c6c09ac401..418be16ab9040c9ff4fa4defd820d3e86656e342 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -1030,10 +1030,10 @@ TransportDIB* RenderProcessHostImpl::MapTransportDIB(
                   STANDARD_RIGHTS_REQUIRED | FILE_MAP_READ | FILE_MAP_WRITE,
                   FALSE, 0);
   return TransportDIB::Map(section);
+#elif defined(OS_ANDROID) || defined(USE_NATIVE_SURFACE_LINUX)
+  return TransportDIB::Map(dib_id);
 #elif defined(TOOLKIT_GTK) || (defined(OS_LINUX) && defined(USE_AURA))
   return TransportDIB::Map(dib_id.shmkey);
-#elif defined(OS_ANDROID)
-  return TransportDIB::Map(dib_id);
 #else
   // On POSIX, the browser allocates all DIBs and keeps a file descriptor around
   // for each.