Add GN build file for surface.

ui/surface/BUILD.gn

Index: ui/surface/BUILD.gn
diff --git a/ui/surface/BUILD.gn b/ui/surface/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..62b68a663b307b043359d09ee371acf2d9f81298
--- /dev/null
+++ b/ui/surface/BUILD.gn
@@ -0,0 +1,32 @@
+# 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/ui.gni")
+
+component("surface") {
+  sources = [
+    "accelerated_surface_mac.cc",
+    "accelerated_surface_mac.h",
+    "surface_export.h",
+    "transport_dib.cc",
+    "transport_dib.h",
+    "transport_dib_posix.cc",
+    "transport_dib_win.cc",
+  ]
+
+  defines = [ "SURFACE_IMPLEMENTATION" ]
+
+  deps = [
+    "//base",
+    "//base/third_party/dynamic_annotations",
+    "//skia",
+    "//ui/base:ui_base",
+    "//ui/gfx/geometry",
+    "//ui/gl",
+  ]
+
+  if (use_x11) {
+    include_dirs = [ "//third_party/khronos" ]
+  }
+}