GN: fontmgr_custom

BUILD.gn

 # Copyright 2016 Google Inc.
 #
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//gn/shared_sources.gni")
 
 declare_args() {
   skia_enable_tools = !is_fuchsia && !is_component_build
 
@@ skipping 206 matching lines @@
     "//third_party/expat",
     "//third_party/freetype2",
   ]
   sources = [
     "src/ports/SkFontMgr_android.cpp",
     "src/ports/SkFontMgr_android_factory.cpp",
     "src/ports/SkFontMgr_android_parser.cpp",
   ]
 }
 
+optional("fontmgr_custom") {
+  enabled = is_linux && skia_use_freetype && !skia_use_fontconfig
+
+  deps = [
+    "//third_party/freetype2",
+  ]
+  sources = [
+    "src/ports/SkFontMgr_custom.cpp",
+    "src/ports/SkFontMgr_custom_directory_factory.cpp",
+  ]
+}
+
 optional("fontmgr_fontconfig") {
   enabled = skia_use_freetype && skia_use_fontconfig
 
   deps = [
     "//third_party:fontconfig",
     "//third_party/freetype2",
   ]
   sources = [
     "src/ports/SkFontConfigInterface_direct.cpp",
     "src/ports/SkFontConfigInterface_direct_factory.cpp",
@@ skipping 103 matching lines @@
   public_configs = [ ":skia_public" ]
   configs += skia_library_configs
 
   deps = [
     ":arm64",
     ":armv7",
     ":avx",
     ":crc32",
     ":dsp",
     ":fontmgr_android",
+    ":fontmgr_custom",
     ":fontmgr_fontconfig",
     ":gif",
     ":jpeg",
     ":none",
     ":pdf",
     ":png",
     ":sse2",
     ":sse41",
     ":sse42",
     ":ssse3",
@@ skipping 412 matching lines @@
         "tools/using_skia_and_harfbuzz.cpp",
       ]
       deps = [
         ":skia",
         "//third_party/harfbuzz",
       ]
       testonly = true
     }
   }
 }