Move touchscreen_util.cc/h from ash to ui.

ui/display/BUILD.gn

Index: ui/display/BUILD.gn
diff --git a/ui/display/BUILD.gn b/ui/display/BUILD.gn
index bce7b159412e29dd5eb3e114e5ba873a492cc226..85dcea94026812ba2e4d6dbbd7da51cc6167b6c7 100644
--- a/ui/display/BUILD.gn
+++ b/ui/display/BUILD.gn
@@ -54,6 +54,8 @@ component("display") {
     "manager/display_manager_utilities.h",
     "manager/managed_display_info.cc",
     "manager/managed_display_info.h",
+    "manager/touchscreen_util.cc",
+    "manager/touchscreen_util.h",
     "screen.cc",
     "screen.h",
     "screen_aura.cc",
@@ -82,6 +84,7 @@ component("display") {
     "//base",
     "//third_party/re2",
     "//ui/display/util",
+    "//ui/events/devices",

[sadrul, 2016/11/22 02:03:05]

Interesting. This doesn't introduce a cyclic dependency?

[kylechar, 2016/11/22 13:32:36]

Not after crrev.com/2519993002!

     "//ui/gfx",
     "//ui/gfx/geometry",
   ]
@@ -199,6 +202,7 @@ test("display_unittests") {
     "manager/display_layout_unittest.cc",
     "manager/display_manager_utilities_unittest.cc",
     "manager/managed_display_info_unittest.cc",
+    "manager/touchscreen_util_unittest.cc",
     "screen_unittest.cc",
     "util/display_util_unittest.cc",
     "util/edid_parser_unittest.cc",
@@ -208,6 +212,7 @@ test("display_unittests") {
 
   deps = [
     ":display",
+    ":display_manager_test_api",
     ":test_support",
     "//base",
     "//base/test:run_all_unittests",
@@ -216,6 +221,7 @@ test("display_unittests") {
     "//testing/gtest",
     "//ui/display/types",
     "//ui/display/util",
+    "//ui/events/devices",
     "//ui/gfx:test_support",
     "//ui/gfx/geometry",
   ]