Update charted to 0.4.8 and roll

packages/stack_trace/lib/src/unparsed_frame.dart

Index: packages/stack_trace/lib/src/unparsed_frame.dart
diff --git a/packages/stack_trace/lib/src/unparsed_frame.dart b/packages/stack_trace/lib/src/unparsed_frame.dart
index f037c8a5a913afe92e68b347ef179840a8ae7c2f..78ac738e8e79e4af59d44f4d6b74cdefc5930ff7 100644
--- a/packages/stack_trace/lib/src/unparsed_frame.dart
+++ b/packages/stack_trace/lib/src/unparsed_frame.dart
@@ -2,8 +2,6 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-library stack_trace.unparsed_frame;
-
 import 'frame.dart';
 
 /// A frame that failed to parse.
@@ -23,4 +21,4 @@ class UnparsedFrame implements Frame {
   UnparsedFrame(this.member);
 
   String toString() => member;
-}
+}