[webview_flutter] Implementation of the webview_flutter_platform_interface package

packages/webview_flutter/webview_flutter_platform_interface/AUTHORS

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+# Below is a list of people and organizations that have contributed
+# to the Flutter project. Names should be added to the list like so:
+#
+#   Name/Organization <email address>
+
+Google Inc.
+The Chromium Authors
+German Saprykin <saprykin.h@gmail.com>
+Benjamin Sauer <sauer.benjamin@gmail.com>
+larsenthomasj@gmail.com
+Ali Bitek <alibitek@protonmail.ch>
+Pol Batlló <pol.batllo@gmail.com>
+Anatoly Pulyaevskiy
+Hayden Flinner <haydenflinner@gmail.com>
+Stefano Rodriguez <hlsroddy@gmail.com>
+Salvatore Giordano <salvatoregiordanoo@gmail.com>
+Brian Armstrong <brian@flutter.institute>
+Paul DeMarco <paulmdemarco@gmail.com>
+Fabricio Nogueira <feufeu@gmail.com>
+Simon Lightfoot <simon@devangels.london>
+Ashton Thomas <ashton@acrinta.com>
+Thomas Danner <thmsdnnr@gmail.com>
+Diego Velásquez <diego.velasquez.lopez@gmail.com>
+Hajime Nakamura <nkmrhj@gmail.com>
+Tuyển Vũ Xuân <netsoft1985@gmail.com>
+Miguel Ruivo <miguel@miguelruivo.com>
+Sarthak Verma <sarthak@artiosys.com>
+Mike Diarmid <mike@invertase.io>
+Invertase <oss@invertase.io>
+Elliot Hesp <elliot@invertase.io>
+Vince Varga <vince.varga@smaho.com>
+Aawaz Gyawali <awazgyawali@gmail.com>
+EUI Limited <ian.evans3@admiralgroup.co.uk>
+Katarina Sheremet <katarina@sheremet.ch>
+Thomas Stockx <thomas@stockxit.com>
+Sarbagya Dhaubanjar <sarbagyastha@gmail.com>
+Ozkan Eksi <ozeksi@gmail.com>
+Rishab Nayak <rishab@bu.edu>
+ko2ic <ko2ic.dev@gmail.com>
+Jonathan Younger <jonathan@daikini.com>
+Jose Sanchez <josesm82@gmail.com>
+Debkanchan Samadder <debu.samadder@gmail.com>
+Audrius Karosevicius <audrius.karosevicius@gmail.com>
+Lukasz Piliszczuk <lukasz@intheloup.io>
+SoundReply Solutions GmbH <ch@soundreply.com>
+Rafal Wachol <rwachol@gmail.com>
+Pau Picas <pau.picas@gmail.com>
+Christian Weder <chrstian.weder@yapeal.ch>
+Alexandru Tuca <salexandru.tuca@outlook.com>
+Christian Weder <chrstian.weder@yapeal.ch>
+Rhodes Davis Jr. <rody.davis.jr@gmail.com>
+Luigi Agosti <luigi@tengio.com>
+Quentin Le Guennec <quentin@tengio.com>
+Koushik Ravikumar <koushik@tengio.com>
+Nissim Dsilva <nissim@tengio.com>
+Giancarlo Rocha <giancarloiff@gmail.com>
+Ryo Miyake <ryo@miyake.id>
+Théo Champion <contact.theochampion@gmail.com>
+Kazuki Yamaguchi <y.kazuki0614n@gmail.com>
+Eitan Schwartz <eshvartz@gmail.com>
+Chris Rutkowski <chrisrutkowski89@gmail.com>
+Juan Alvarez <juan.alvarez@resideo.com>
+Aleksandr Yurkovskiy <sanekyy@gmail.com>
+Anton Borries <mail@antonborri.es>
+Alex Li <google@alexv525.com>
+Rahul Raj <64.rahulraj@gmail.com>
+Maurits van Beusekom <maurits@baseflow.com>

packages/webview_flutter/webview_flutter_platform_interface/CHANGELOG.md

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+## 1.0.0
+
+* Extracted platform interface from `webview_flutter`.

packages/webview_flutter/webview_flutter_platform_interface/LICENSE

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+Copyright 2013 The Flutter 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.

packages/webview_flutter/webview_flutter_platform_interface/README.md

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+# webview_flutter_platform_interface
+
+A common platform interface for the [`webview_flutter`][1] plugin.
+
+This interface allows platform-specific implementations of the `webview_flutter`
+plugin, as well as the plugin itself, to ensure they are supporting the
+same interface.
+
+# Usage
+
+To implement a new platform-specific implementation of `webview_flutter`, extend
+[`WebviewPlatform`][2] with an implementation that performs the
+platform-specific behavior, and when you register your plugin, set the default
+`WebviewPlatform` by calling
+`WebviewPlatform.setInstance(MyPlatformWebview())`.
+
+# Note on breaking changes
+
+Strongly prefer non-breaking changes (such as adding a method to the interface)
+over breaking changes for this package.
+
+See https://flutter.dev/go/platform-interface-breaking-changes for a discussion
+on why a less-clean interface is preferable to a breaking change.
+
+[1]: ../webview_flutter
+[2]: lib/webview_flutter_platform_interface.dart

packages/webview_flutter/webview_flutter_platform_interface/pubspec.yaml

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+name: webview_flutter_platform_interface
+description: A common platform interface for the webview_flutter plugin.
+repository: https://github.com/flutter/plugins/tree/master/packages/webview_flutter/webview_flutter_platform_interface
+issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+webview_flutter%22
+# NOTE: We strongly prefer non-breaking changes, even at the expense of a
+# less-clean API. See https://flutter.dev/go/platform-interface-breaking-changes
+version: 1.0.0
+
+environment:
+  sdk: ">=2.12.0 <3.0.0"
+  flutter: ">=2.0.0"
+
+dependencies:
+  flutter:
+    sdk: flutter
+  plugin_platform_interface: ^2.0.0
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+  mockito: ^5.0.0
+  pedantic: ^1.10.0