Keep Mac sources that shouldn't been removed for gn builds

Source/platform/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/ui.gni")
 import("//testing/test.gni")
 import("//third_party/WebKit/Source/build/scripts/scripts.gni")
 import("//third_party/WebKit/Source/config.gni")
 import("//third_party/WebKit/Source/platform/platform.gni")
 import("//third_party/WebKit/Source/platform/platform_generated.gni")
@@ skipping 196 matching lines @@
   deps = [
     ":make_platform_generated",
     "//third_party/harfbuzz-ng",
     "//third_party/icu",
     "//third_party/WebKit/Source/wtf",
     "//third_party/WebKit/Source/platform/heap",
   ]
 
   if (is_mac) {
     sources -= [
-      "fonts/opentype/OpenTypeTypes.h",
-      "fonts/opentype/OpenTypeVerticalData.cpp",
-      "fonts/opentype/OpenTypeVerticalData.h",
-      # The Mac currently uses FontCustomPlatformDataMac.cpp instead.
       "fonts/skia/FontCacheSkia.cpp",
       # Uses LocaleMac instead.
       "text/LocaleICU.cpp",
       "text/LocaleICU.h",
       # Uses KillRingMac.mm instead.
       "KillRingNone.cpp",
       # Mac uses only ScrollAnimatorMac.
       "scroll/ScrollbarThemeNonMacCommon.cpp",
       "scroll/ScrollbarThemeNonMacCommon.h",
       "scroll/ScrollAnimatorNone.cpp",
@@ skipping 164 matching lines @@
     #'cflags': ['-marm'],
     #    'conditions': [
     #      ['OS=="android"', {
     #        'cflags!': ['-mthumb'],
     #      }],
     #    ],
 
     deps = [ ":blink_common" ]
   }
 }