Remove usage of deprecated constants. (dart-lang/web_socket_channel#20)

pkgs/web_socket_channel/CHANGELOG.md

diff --git a/pkgs/web_socket_channel/CHANGELOG.md b/pkgs/web_socket_channel/CHANGELOG.md
index d50f8d0..e621d98 100644
--- a/pkgs/web_socket_channel/CHANGELOG.md
+++ b/pkgs/web_socket_channel/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.0.8
+
+* Remove use of deprecated constant name.
+
 ## 1.0.7
 
 * Support the latest dev SDK.

pkgs/web_socket_channel/lib/src/channel.dart

diff --git a/pkgs/web_socket_channel/lib/src/channel.dart b/pkgs/web_socket_channel/lib/src/channel.dart
index 4cd368c..c62fd44 100644
--- a/pkgs/web_socket_channel/lib/src/channel.dart
+++ b/pkgs/web_socket_channel/lib/src/channel.dart
@@ -65,7 +65,7 @@
   static String signKey(String key) {
     // We use [codeUnits] here rather than UTF-8-decoding the string because
     // [key] is expected to be base64 encoded, and so will be pure ASCII.
-    return convert.BASE64
+    return convert.base64
         .encode(sha1.convert((key + webSocketGUID).codeUnits).bytes);
   }
 

pkgs/web_socket_channel/pubspec.yaml

diff --git a/pkgs/web_socket_channel/pubspec.yaml b/pkgs/web_socket_channel/pubspec.yaml
index dd70f7e..32252a0 100644
--- a/pkgs/web_socket_channel/pubspec.yaml
+++ b/pkgs/web_socket_channel/pubspec.yaml
@@ -1,5 +1,5 @@
 name: web_socket_channel
-version: 1.0.7
+version: 1.0.8
 description: StreamChannel wrappers for WebSockets.
 author: Dart Team <misc@dartlang.org>
 homepage: https://github.com/dart-lang/web_socket_channel