Change skia build files to use a utils.gypi instead of hardcoded files.

skia/BUILD.gn

 # Copyright (c) 2013 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/features.gni")
 import("//build/config/ui.gni")
 if (cpu_arch == "arm") {
   import("//build/config/arm.gni")
 }
 
@@ skipping 38 matching lines @@
 
 # The list of Skia effects that are to be set for chromium.
 gypi_skia_effects = exec_script(
     "//build/gypi_to_gn.py",
     [ rebase_path("//third_party/skia/gyp/effects.gypi"),
       "--replace=<(skia_include_path)=//third_party/skia/include",
       "--replace=<(skia_src_path)=//third_party/skia/src" ],
     "scope",
     [ "//third_party/skia/gyp/effects.gypi" ])
 
+# The list of Skia utilss that are to be set for chromium.
+gypi_skia_utils = exec_script(
+    "//build/gypi_to_gn.py",
+    [ rebase_path("//third_party/skia/gyp/utils.gypi"),
+      "--replace=<(skia_include_path)=//third_party/skia/include",
+      "--replace=<(skia_src_path)=//third_party/skia/src" ],
+    "scope",
+    [ "//third_party/skia/gyp/utils.gypi" ])
+
 # The list of Skia files is kept in skia_gn_files.gypi. Read it.
 gypi_values = exec_script(
     "//build/gypi_to_gn.py",
     [ rebase_path("skia_gn_files.gypi"),
       "--replace=<(skia_include_path)=//third_party/skia/include",
       "--replace=<(skia_src_path)=//third_party/skia/src" ],
     "scope",
     [ "skia_gn_files.gypi" ])
 
 # External-facing config for dependent code.
@@ skipping 219 matching lines @@
     "ext/vector_canvas.h",
     "ext/vector_platform_device_emf_win.cc",
     "ext/vector_platform_device_emf_win.h",
     "ext/vector_platform_device_skia.cc",
     "ext/vector_platform_device_skia.h",
   ]
 
   # The skia gypi values are relative to the skia_dir, so we need to rebase.
   sources += gypi_skia_core.sources
   sources += gypi_skia_effects.sources
+  sources += gypi_skia_utils.sources
   sources += gypi_skia_pdf.sources
   sources += gypi_values.skia_library_sources
 
   # GPU
   if (skia_support_gpu) {
     sources += gypi_skia_gpu.skgpu_sources
     sources += gypi_skia_gpu.skgpu_null_gl_sources
   }
 
   # Fixup Chrome sources.
@@ skipping 238 matching lines @@
     ":skia_config",
     "//build/config/compiler:no_chromium_code"
   ]
 
   deps = [
     "//base",
   ]
 
   visibility = ":skia"
 }