[PoC] Reformat all BUILD.gn and *.gni files with new gn.

third_party/fontconfig/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.
 
 assert(is_linux)
 
 config("fontconfig_config") {
   include_dirs = [ "src" ]
 }
 
@@ skipping 34 matching lines @@
     "include/src",
   ]
 
   defines = [
     "HAVE_CONFIG_H",
     "FC_CACHEDIR=\"/var/cache/fontconfig\"",
     "FONTCONFIG_PATH=\"/etc/fonts\"",
   ]
 
   deps = [
+    "//third_party/libxml",
     "//third_party/zlib",
-    "//third_party/libxml",
   ]
 
   configs -= [ "//build/config/compiler:chromium_code" ]
   configs += [
     "//build/config/compiler:no_chromium_code",
     "//build/config/linux:freetype2",
   ]
 
   public_configs = [ ":fontconfig_config" ]
 
   if (is_clang) {
     # Work around a null-conversion warning. See crbug.com/358852.
     cflags = [ "-Wno-non-literal-null-conversion" ]
   }
 }