Start removing enum ui::ResourceBundle::FontStyle, fix MacViews font sizes

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 111 matching lines @@
     "cocoa/user_interface_item_command_handler.h",
     "cocoa/view_description.h",
     "cocoa/view_description.mm",
     "cocoa/window_size_constants.h",
     "cocoa/window_size_constants.mm",
     "cursor/cursor.cc",
     "cursor/cursor.h",
     "cursor/cursor_android.cc",
     "cursor/cursor_loader.h",
     "cursor/cursor_win.cc",
+    "default_style.h",
     "default_theme_provider_mac.mm",
     "device_form_factor.h",
     "device_form_factor_android.cc",
     "device_form_factor_android.h",
     "device_form_factor_desktop.cc",
     "device_form_factor_ios.mm",
     "dragdrop/drag_drop_types.h",
     "dragdrop/drag_drop_types_win.cc",
     "dragdrop/drag_source_win.cc",
     "dragdrop/drag_source_win.h",
@@ skipping 770 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)