[video_player_web] Bump version for NNBD stable (flutter#3574)

Author: ditman

packages/video_player/video_player_web/CHANGELOG.md

@@ -1,23 +1,9 @@
-## 2.0.0-nullsafety.4
+## 2.0.0
 
+* Migrate to null safety.
 * Calling `setMixWithOthers()` now is silently ignored instead of throwing an exception.
-
-## 2.0.0-nullsafety.3
-
-* Updated to video_player_platform_interface 4.0.
-
-## 2.0.0-nullsafety.2
-
 * Fixed an issue where `isBuffering` was not updating on Web.
 
-## 2.0.0-nullsafety.1
-
-* Bump Dart SDK to support null safety.
-
-## 2.0.0-nullsafety
-
-* Migrate to null safety.
-
 ## 0.1.4+2
 
 * Update Flutter SDK constraint.

packages/video_player/video_player_web/pubspec.yaml

@@ -1,7 +1,7 @@
 name: video_player_web
 description: Web platform implementation of video_player.
 homepage: https://github.com/flutter/plugins/tree/master/packages/video_player/video_player_web
-version: 2.0.0-nullsafety.4
+version: 2.0.0
 
 flutter:
   plugin:
@@ -15,14 +15,14 @@ dependencies:
     sdk: flutter
   flutter_web_plugins:
     sdk: flutter
-  meta: ^1.3.0-nullsafety.3
-  video_player_platform_interface: ^4.0.0-nullsafety.0
+  meta: ^1.3.0
+  video_player_platform_interface: ^4.0.0
 
 dev_dependencies:
   flutter_test:
     sdk: flutter
-  pedantic: ^1.10.0-nullsafety.1
+  pedantic: ^1.10.0
 
 environment:
-  sdk: ">=2.12.0-0 <3.0.0"
-  flutter: ">=1.12.8"
+  sdk: ">=2.12.0-259.9.beta <3.0.0"
+  flutter: ">=1.20.0"

packages/video_player/video_player_web/test/video_player_web_test.dart

@@ -98,7 +98,9 @@ void main() {
       await VideoPlayerPlatform.instance.setVolume(videoPlayerId, 0);
       await VideoPlayerPlatform.instance.play(videoPlayerId);
 
-      expect(eventStream, emitsError(isA<PlatformException>()));
+      expect(() async {
+        await eventStream.last;
+      }, throwsA(isA<PlatformException>()));
     });
 
     test('can pause', () {