Create a single default variable for visibility lists

Bug: none
Change-Id: Ic744806971748d973b24b44a99c2a69f90df672b
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/3021233
Reviewed-by: Tim van der Lippe <tvanderlippe@chromium.org>
Commit-Queue: Alex Rudenko <alexrudenko@chromium.org>

front_end/models/visibility.gni

@@ -2,6 +2,8 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+import("../visibility.gni")
+
 declare_args() {
-  devtools_models_visibility = []
+  devtools_models_visibility = devtools_visibility
 }

front_end/panels/visibility.gni

@@ -2,6 +2,8 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+import("../visibility.gni")
+
 declare_args() {
-  devtools_panels_visibility = []
+  devtools_panels_visibility = devtools_visibility
 }

front_end/third_party/visibility.gni

@@ -2,6 +2,8 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+import("../visibility.gni")
+
 declare_args() {
-  devtools_third_party_visibility = []
+  devtools_third_party_visibility = devtools_visibility
 }

front_end/ui/components/visibility.gni

@@ -2,8 +2,10 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+import("../../visibility.gni")
+
 declare_args() {
-  devtools_components_visibility = []
+  devtools_components_visibility = devtools_visibility
 }
 
 default_components_visibility = [

front_end/ui/legacy/visibility.gni

@@ -2,6 +2,8 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+import("../../visibility.gni")
+
 declare_args() {
-  devtools_ui_legacy_visibility = []
+  devtools_ui_legacy_visibility = devtools_visibility
 }

front_end/ui/lit-html/visibility.gni

@@ -2,6 +2,8 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+import("../../visibility.gni")
+
 declare_args() {
-  devtools_lit_visibility = []
+  devtools_lit_visibility = devtools_visibility
 }

front_end/visibility.gni

@@ -0,0 +1,7 @@
+# Copyright 2021 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.
+
+declare_args() {
+  devtools_visibility = []
+}