Add licensing clarification and LICENSE-CHROMIUM (#4871)

.prettierignore

@@ -19,6 +19,6 @@ LICENSE
 /coverage/
 /vendor/
 
-# white-list files we want to process
+# allow-list of files we want to process
 !*.js
 !*.md

README.md

@@ -277,6 +277,22 @@ Note: `hashes.txt` will be embedded into the addons-linter bundle.
 
 The `scripts/update-dispensary-doc` command updates the list of release pages above based on the `src/dispensary/libraries.json` file.
 
+## License
+
+This source code is available under the [Mozilla Public License 2.0](LICENSE).
+
+Additionally, parts of the schema files originated from Chromium source code:
+
+> Copyright (c) 2012 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-CHROMIUM](src/schema/imported/LICENSE-CHROMIUM) file.
+
+You are not granted rights or licenses to the trademarks of the
+Mozilla Foundation or any party, including without limitation the
+Firefox name or logo.
+
+For more information, see: https://www.mozilla.org/foundation/licensing.html
+
 [new release]: https://github.com/mozilla/addons-linter/releases/new
 [semver]: http://semver.org/
 [prettier]: https://prettier.io/

src/schema/imported/LICENSE-CHROMIUM

@@ -0,0 +1,27 @@
+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

src/schema/imported/README.md

@@ -0,0 +1,13 @@
+This source code is available under the [Mozilla Public License 2.0](/LICENSE).
+
+Additionally, parts of the schema files originated from Chromium source code:
+
+> Copyright (c) 2012 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-CHROMIUM](LICENSE-CHROMIUM) file.
+
+You are not granted rights or licenses to the trademarks of the
+Mozilla Foundation or any party, including without limitation the
+Firefox name or logo.
+
+For more information, see: https://www.mozilla.org/foundation/licensing.html