[video_player_platform_interface] Fix some pedantic lints (flutter#2349)

Fixes unawaited_futures. There are still some undocumented members here
that are unclear to me, so unfortunately the analysis_options.yaml is
still there.

Author: Michael Klimushyn

packages/video_player/video_player_platform_interface/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 1.0.2
+
+* Fix unawaited futures in the tests.
+
 ## 1.0.1
 
 * Return correct platform event type when buffering

packages/video_player/video_player_platform_interface/analysis_options.yaml

@@ -8,4 +8,3 @@ include: ../../../analysis_options.yaml
 analyzer:
   errors:
     public_member_api_docs: ignore
-    unawaited_futures: ignore

packages/video_player/video_player_platform_interface/lib/video_player_platform_interface.dart

@@ -27,15 +27,15 @@ abstract class VideoPlayerPlatform {
   @visibleForTesting
   bool get isMock => false;
 
+  static VideoPlayerPlatform _instance = MethodChannelVideoPlayer();
+
   /// The default instance of [VideoPlayerPlatform] to use.
   ///
   /// Platform-specific plugins should override this with their own
   /// platform-specific class that extends [VideoPlayerPlatform] when they
   /// register themselves.
   ///
   /// Defaults to [MethodChannelVideoPlayer].
-  static VideoPlayerPlatform _instance = MethodChannelVideoPlayer();
-
   static VideoPlayerPlatform get instance => _instance;
 
   // TODO(amirh): Extract common platform interface logic.

packages/video_player/video_player_platform_interface/pubspec.yaml

@@ -4,7 +4,7 @@ author: Flutter Team <[email protected]>
 homepage: https://github.com/flutter/plugins/tree/master/packages/video_player/video_player_platform_interface
 # 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: 1.0.1
+version: 1.0.2
 
 dependencies:
   flutter:

packages/video_player/video_player_platform_interface/test/method_channel_video_player_test.dart

@@ -233,7 +233,7 @@ void main() {
             // with `ServicesBinding.instance.defaultBinaryMessenger` when it's
             // available on all the versions of Flutter that we test.
             // ignore: deprecated_member_use
-            defaultBinaryMessenger.handlePlatformMessage(
+            await defaultBinaryMessenger.handlePlatformMessage(
                 "flutter.io/videoPlayer/videoEvents123",
                 const StandardMethodCodec()
                     .encodeSuccessEnvelope(<String, dynamic>{
@@ -248,7 +248,7 @@ void main() {
             // with `ServicesBinding.instance.defaultBinaryMessenger` when it's
             // available on all the versions of Flutter that we test.
             // ignore: deprecated_member_use
-            defaultBinaryMessenger.handlePlatformMessage(
+            await defaultBinaryMessenger.handlePlatformMessage(
                 "flutter.io/videoPlayer/videoEvents123",
                 const StandardMethodCodec()
                     .encodeSuccessEnvelope(<String, dynamic>{
@@ -260,7 +260,7 @@ void main() {
             // with `ServicesBinding.instance.defaultBinaryMessenger` when it's
             // available on all the versions of Flutter that we test.
             // ignore: deprecated_member_use
-            defaultBinaryMessenger.handlePlatformMessage(
+            await defaultBinaryMessenger.handlePlatformMessage(
                 "flutter.io/videoPlayer/videoEvents123",
                 const StandardMethodCodec()
                     .encodeSuccessEnvelope(<String, dynamic>{
@@ -276,7 +276,7 @@ void main() {
             // with `ServicesBinding.instance.defaultBinaryMessenger` when it's
             // available on all the versions of Flutter that we test.
             // ignore: deprecated_member_use
-            defaultBinaryMessenger.handlePlatformMessage(
+            await defaultBinaryMessenger.handlePlatformMessage(
                 "flutter.io/videoPlayer/videoEvents123",
                 const StandardMethodCodec()
                     .encodeSuccessEnvelope(<String, dynamic>{
@@ -288,7 +288,7 @@ void main() {
             // with `ServicesBinding.instance.defaultBinaryMessenger` when it's
             // available on all the versions of Flutter that we test.
             // ignore: deprecated_member_use
-            defaultBinaryMessenger.handlePlatformMessage(
+            await defaultBinaryMessenger.handlePlatformMessage(
                 "flutter.io/videoPlayer/videoEvents123",
                 const StandardMethodCodec()
                     .encodeSuccessEnvelope(<String, dynamic>{