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

ui/base/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/config/compiler/compiler.gni")
 import("//build/config/sanitizers/sanitizers.gni")
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 
 if (is_android) {
@@ skipping 300 matching lines @@
   }
 
   # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
   configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]
 
   defines = [ "UI_BASE_IMPLEMENTATION" ]
 
   public_deps = [
     "//base",
     "//skia",
+    "//ui/events:events_base",
     "//ui/events/platform",
-    "//ui/events:events_base",
     "//ui/gfx",
     "//ui/gfx/geometry",
   ]
   deps = [
-    "//base/third_party/dynamic_annotations",
     "//base:base_static",
     "//base:i18n",
+    "//base/third_party/dynamic_annotations",
     "//net",
     "//third_party/icu",
     "//ui/events",
     "//ui/events/devices",
     "//ui/resources",
     "//ui/strings",
     "//url",
   ]
 
   if (is_ios) {
@@ skipping 388 matching lines @@
       "test/data/resource.h",
       "text/bytes_formatting_unittest.cc",
       "touch/selection_bound_unittest.cc",
       "webui/web_ui_util_unittest.cc",
     ]
   }
 
   if (build_ime) {
     sources += [
       "ime/candidate_window_unittest.cc",
+      "ime/chromeos/character_composer_unittest.cc",
       "ime/composition_text_unittest.cc",
-      "ime/chromeos/character_composer_unittest.cc",
       "ime/input_method_base_unittest.cc",
       "ime/input_method_chromeos_unittest.cc",
       "ime/remote_input_method_win_unittest.cc",
       "ime/win/imm32_manager_unittest.cc",
       "ime/win/tsf_input_scope_unittest.cc",
     ]
     if (is_linux && use_aura && !is_chromeos) {
       sources += [ "ime/input_method_auralinux_unittest.cc" ]
     }
     if (use_x11) {
@@ skipping 136 matching lines @@
   }
   if (is_mac) {
     data += [ "$root_out_dir/ui_unittests Framework.framework/" ]
 
     if (is_asan && symbol_level == 0) {
       data += [ "$root_out_dir/ui_base_unittests.dSYM/" ]
     }
   }
 }
 # TODO(GYP) Mac (ui_base_tests_bundle)