GN: build sfntly, icu, harfbuzz

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.
 
 declare_args() {
 }
 
 skia_public_includes = [
   "include/android",
@@ skipping 47 matching lines @@
   ]
 
   defines = [
     "SK_GAMMA_APPLY_TO_A8",
 
     "SK_HAS_GIF_LIBRARY",
     "SK_HAS_JPEG_LIBRARY",
     "SK_HAS_PNG_LIBRARY",
     "SK_HAS_WEBP_LIBRARY",
 
+    "SK_SFNTLY_SUBSETTER=\"font_subsetter.h\"", # TODO(halcanary): remove
+
     "TURBO_HAS_565",
     "TURBO_HAS_CROP",
     "TURBO_HAS_SKIP",
   ]
 }
 
 # Any code that's linked into Skia-the-library should use this config via += skia_library_configs.
 config("skia_library") {
   visibility = [ ":*" ]
   defines = [ "SKIA_IMPLEMENTATION=1" ]
@@ skipping 87 matching lines @@
   deps = [
     ":opts_avx",
     ":opts_sse41",
     ":opts_ssse3",
     "//third_party/expat",
     "//third_party/giflib",
     "//third_party/libjpeg_turbo",
     "//third_party/libpng",
     "//third_party/libwebp",
     "//third_party/zlib",
+    "//third_party/sfntly",

[mtklein, 2016/08/03 20:06:50]

please run gn fmt --in-place on all your changed files

[hal.canary, 2016/08/03 21:35:59]

Done.

   ]
 
   libs = [ "pthread" ]
 
   sources = []
   sources += core_gypi.sources
   sources += effects_gypi.sources
   sources += gpu_gypi.skgpu_sources
   sources += opts_gypi.sse2_sources
   sources += pdf_gypi.sources
@@ skipping 351 matching lines @@
       ":bench",
       ":flags",
       ":gm",
       ":gpu_tool_utils",
       ":skia",
       ":tool_utils",
       "//third_party/jsoncpp",
     ]
     testonly = true
   }
+
+
+  executable("sktexttopdf") {
+    sources = [
+      "tools/using_skia_and_harfbuzz.cpp",
+      "tools/SkShaper_harfbuzz.cpp",
+    ]
+    deps = [
+      ":skia",
+      "//third_party/harfbuzz",
+    ]
+    testonly = true
+  }
+
 }