diff --git a/skia/BUILD.gn b/skia/BUILD.gn
index fb0573e..041062d 100644
--- a/skia/BUILD.gn
+++ b/skia/BUILD.gn
@@ -7,6 +7,7 @@
 import("//testing/test.gni")
 import("//third_party/skia/gn/shared_sources.gni")
 import("//third_party/skia/third_party/skcms/skcms.gni")
+import("features.gni")
 
 if (current_cpu == "arm") {
   import("//build/config/arm.gni")
@@ -16,7 +17,7 @@
 }
 
 skia_support_gpu = !is_ios
-skia_support_pdf = false  #!is_ios && (enable_basic_printing || enable_print_preview)
+skia_support_pdf = false
 
 # External-facing config for dependent code.
 config("skia_config") {
@@ -41,6 +42,10 @@
     defines += [ "SK_SUPPORT_GPU=0" ]
   }
 
+  if (skia_use_gl) {
+    defines += [ "SK_GL" ]
+  }
+
   if (is_android) {
     defines += [
       "SK_BUILD_FOR_ANDROID",
@@ -216,6 +221,9 @@
   if (skia_support_gpu) {
     sources += skia_gpu_sources
     sources += skia_null_gpu_sources
+    if (skia_use_gl) {
+      sources += skia_gl_gpu_sources
+    }
   }
 
   # Remove unused util files include in utils.gni
diff --git a/skia/features.gni b/skia/features.gni
new file mode 100644
index 0000000..47771d1
--- /dev/null
+++ b/skia/features.gni
@@ -0,0 +1,9 @@
+# Copyright 2019 The PDFium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+declare_args() {
+  # Enable experimental SkiaRenderer Dawn backend.
+  skia_use_dawn = false
+  skia_use_gl = true
+}