Remove some global UI defines

third_party/WebKit/public/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/buildflag_header.gni")
 import("//mojo/public/tools/bindings/mojom.gni")
 import("//third_party/WebKit/public/public_features.gni")
 import("//third_party/WebKit/Source/config.gni")
 import("//third_party/WebKit/Source/core/core.gni")
 import("//tools/grit/grit_rule.gni")
@@ skipping 55 matching lines @@
 
   # Allow :blink_headers to include v8.h without linking to it.
   configs = [ "//v8:external_config" ]
 }
 
 # Public feature flags used outside of Blink.
 buildflag_header("features") {
   header = "public_features.h"
   flags = [
     "DEBUG_DEVTOOLS=$debug_devtools",
+    "USE_DEFAULT_RENDER_THEME=$use_default_render_theme",
     "USE_MINIKIN_HYPHENATION=$use_minikin_hyphenation",
   ]
 }
 
 if (is_android) {
   java_cpp_enum("blink_headers_java_enums_srcjar") {
     sources = [
       "./platform/WebDisplayMode.h",
       "./platform/WebInputEvent.h",
       "./platform/WebTextInputType.h",
@@ skipping 675 matching lines @@
 # relegated to a separate target to avoid duplication between the variants.
 source_set("shared_typemap_traits") {
   visibility = [ ":*" ]
   sources = [
     "web/WindowFeaturesStructTraits.cpp",
   ]
   deps = [
     ":new_wrapper_types_mojo_bindings_shared__generator",
   ]
 }