Moves resources used by ash/wm/common to ash/wm/common/resources

ash/wm/common/resources/BUILD.gn

+# Copyright 2016 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("//tools/grit/grit_rule.gni")
+import("//tools/grit/repack.gni")
+import("//ui/base/ui_features.gni")
+
+assert(enable_hidpi)
+
+grit("resources") {
+  source = "ash_wm_common_resources.grd"
+  outputs = [
+    "grit/ash_wm_common_resources.h",
+    "ash_wm_common_resources_100_percent.pak",
+    "ash_wm_common_resources_200_percent.pak",
+  ]
+}