Extract touchscreen device management into a generic manager

ui/gfx/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")
 
 if (is_android) {
   import("//build/config/android/config.gni")
   import("//build/config/android/rules.gni")
 }
@@ skipping 210 matching lines @@
     "//base:base_static",
     "//base/third_party/dynamic_annotations",
     "//skia",
     "//third_party/harfbuzz-ng",
     "//third_party/icu:icui18n",
     "//third_party/icu:icuuc",
     "//third_party/libpng",
     "//third_party/zlib",
     "//ui/gfx/geometry",
   ]
+  forward_dependent_configs_from = [ "//skia" ]
 
   # Text rendering conditions (complicated so separated out).
   if (is_android || is_ios) {
     # We don't support RenderText on these platforms.
   } else {
     # These text rendering files are supported everywhere text rendering is.
     sources += [
       "render_text.cc",
       "render_text.h",
       "render_text_harfbuzz.cc",
@@ skipping 195 matching lines @@
 
     defines = [ "GFX_IMPLEMENTATION" ]
     configs += [ "//build/config/linux:x11" ]
 
     deps = [
       ":gfx_export",
       "//base"
     ]
   }
 }