Fix HttpBodyHandler to handle missing mimeType.

sdk/lib/io/http.dart

Index: sdk/lib/io/http.dart
diff --git a/sdk/lib/io/http.dart b/sdk/lib/io/http.dart
index a2b063256c7432d0d24074632919642b8a62c4ea..6ec396133f6bd7fd5e8d99a2dbca9392d037af6f 100644
--- a/sdk/lib/io/http.dart
+++ b/sdk/lib/io/http.dart
@@ -509,6 +509,11 @@ abstract class ContentType implements HeaderValue {
   }
 
   /**
+   * Gets the mime-type, without the charset.

[Søren Gjesse, 2013/04/15 11:21:21]

without the charset -> without any parameters

[Anders Johnsen, 2013/04/15 11:24:19]

Ahh, ty.

+   */
+  String get mimeType;
+
+  /**
    * Gets the primary type.
    */
   String get primaryType;