Fix all strong-mode errors and warnings. R=alanknight@google.com Review URL: https://codereview.chromium.org//1959433002 .

diff --git a/pkgs/web_socket_channel/CHANGELOG.md b/pkgs/web_socket_channel/CHANGELOG.md
index d25b8f4..90f5aaf 100644
--- a/pkgs/web_socket_channel/CHANGELOG.md
+++ b/pkgs/web_socket_channel/CHANGELOG.md

@@ -1,5 +1,7 @@
 ## 1.0.3
 
+* Fix all strong-mode errors and warnings.
+
 * Fix a bug where `HtmlWebSocketChannel.close()` would crash on non-Dartium
   browsers if the close code and reason weren't provided explicitly.
 

diff --git a/pkgs/web_socket_channel/lib/html.dart b/pkgs/web_socket_channel/lib/html.dart
index 1c0a602..07a17ed 100644
--- a/pkgs/web_socket_channel/lib/html.dart
+++ b/pkgs/web_socket_channel/lib/html.dart

@@ -126,8 +126,8 @@
   final HtmlWebSocketChannel _channel;
 
   _HtmlWebSocketSink(HtmlWebSocketChannel channel)
-      : super(channel._controller.foreign.sink),
-        _channel = channel;
+      : _channel = channel,
+        super(channel._controller.foreign.sink);
 
   Future close([int closeCode, String closeReason]) {
     _channel._localCloseCode = closeCode;

diff --git a/pkgs/web_socket_channel/lib/io.dart b/pkgs/web_socket_channel/lib/io.dart
index 8c225be..8bf087b 100644
--- a/pkgs/web_socket_channel/lib/io.dart
+++ b/pkgs/web_socket_channel/lib/io.dart

@@ -85,8 +85,8 @@
   final WebSocket _webSocket;
 
   _IOWebSocketSink(WebSocket webSocket)
-      : super(webSocket),
-        _webSocket = webSocket;
+      : _webSocket = webSocket,
+        super(webSocket);
 
   Future close([int closeCode, String closeReason]) =>
       _webSocket.close(closeCode, closeReason);

diff --git a/pkgs/web_socket_channel/lib/src/channel.dart b/pkgs/web_socket_channel/lib/src/channel.dart
index 9c82c68..6aff42c 100644
--- a/pkgs/web_socket_channel/lib/src/channel.dart
+++ b/pkgs/web_socket_channel/lib/src/channel.dart

@@ -104,8 +104,8 @@
   final WebSocketImpl _webSocket;
 
   WebSocketSink._(WebSocketImpl webSocket)
-      : super(webSocket),
-        _webSocket = webSocket;
+      : _webSocket = webSocket,
+        super(webSocket);
 
   /// Closes the web socket connection.
   ///

diff --git a/pkgs/web_socket_channel/pubspec.yaml b/pkgs/web_socket_channel/pubspec.yaml
index 2833116..7a8c0fe 100644
--- a/pkgs/web_socket_channel/pubspec.yaml
+++ b/pkgs/web_socket_channel/pubspec.yaml

@@ -1,5 +1,5 @@
 name: web_socket_channel
-version: 1.0.3-dev
+version: 1.0.3
 description: StreamChannel wrappers for WebSockets.
 author: Dart Team <misc@dartlang.org>
 homepage: https://github.com/dart-lang/web_socket_channel

diff --git a/pkgs/web_socket_channel/test/html_test.dart b/pkgs/web_socket_channel/test/html_test.dart
index f5c3555..9954eb6 100644
--- a/pkgs/web_socket_channel/test/html_test.dart
+++ b/pkgs/web_socket_channel/test/html_test.dart

@@ -17,6 +17,7 @@
 import 'package:test/test.dart';
 
 import 'package:web_socket_channel/html.dart';
+import 'package:web_socket_channel/web_socket_channel.dart';
 
 void main() {
   var channel;
@@ -88,5 +89,5 @@
   var reader = new FileReader();
   reader.readAsArrayBuffer(blob);
   await reader.onLoad.first;
-  return reader.result;
+  return reader.result as Uint8List;
 }

diff --git a/pkgs/web_socket_channel/test/web_socket_test.dart b/pkgs/web_socket_channel/test/web_socket_test.dart
index a105b67..217df13 100644
--- a/pkgs/web_socket_channel/test/web_socket_test.dart
+++ b/pkgs/web_socket_channel/test/web_socket_test.dart

@@ -35,7 +35,7 @@
 
       var response = await request.close();
       var socket = await response.detachSocket();
-      var innerChannel = new StreamChannel(socket, socket);
+      var innerChannel = new StreamChannel<List<int>>(socket, socket);
       var webSocket = new WebSocketChannel(innerChannel, serverSide: false);
 
       var n = 0;
@@ -67,7 +67,7 @@
         response.contentLength = 0;
 
         var socket = await response.detachSocket();
-        var innerChannel = new StreamChannel(socket, socket);
+        var innerChannel = new StreamChannel<List<int>>(socket, socket);
         var webSocket = new WebSocketChannel(innerChannel);
         webSocket.sink.add("hello!");