chunk 2: remaining non-audio non-NewImport assets

Assets/GooglePlayPlugins/com.google.android.appbundle/Editor/Scripts/Internal/Utils/WindowUtils.cs

@@ -0,0 +1,37 @@
+// Copyright 2018 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+using UnityEditor;
+using UnityEngine;
+
+namespace Google.Android.AppBundle.Editor.Internal.Utils
+{
+    /// <summary>
+    /// Helper methods for working with <see cref="EditorWindow"/>.
+    /// </summary>
+    public static class WindowUtils
+    {
+        public const string OkButtonText = "OK";
+        public const string CancelButtonText = "Cancel";
+
+        /// <summary>
+        /// Returns true if the running instance of Unity is headless (e.g. a command line build),
+        /// and false if it's a normal instance of Unity.
+        /// </summary>
+        public static bool IsHeadlessMode()
+        {
+            return SystemInfo.graphicsDeviceType == UnityEngine.Rendering.GraphicsDeviceType.Null;
+        }
+    }
+}