Update charted to 0.4.8 and roll

packages/usage/test/usage_test.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // 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 usage.usage_test;
 
 import 'package:test/test.dart';
 import 'package:usage/usage.dart';
 
 main() => defineTests();
 
 void defineTests() {
   group('AnalyticsMock', () {
     test('simple', () {
       AnalyticsMock mock = new AnalyticsMock();
       mock.sendScreenView('main');
+      mock.sendScreenView('withParameters', parameters: {'cd1': 'custom'});
       mock.sendEvent('files', 'save');
+      mock.sendEvent('eventWithParameters', 'save',
+          parameters: {'cd1': 'custom'});
       mock.sendSocial('g+', 'plus', 'userid');
       mock.sendTiming('compile', 123);
       mock.startTimer('compile').finish();
       mock.sendException('FooException');
       mock.setSessionValue('val', 'ue');
       return mock.waitForLastPing();
     });
   });
 
   group('sanitizeStacktrace', () {
     test('replace file', () {
-      expect(sanitizeStacktrace(
-          '(file:///Users/foo/tmp/error.dart:3:13)',
-          shorten: false),
+      expect(
+          sanitizeStacktrace('(file:///Users/foo/tmp/error.dart:3:13)',
+              shorten: false),
           '(error.dart:3:13)');
     });
 
     test('replace files', () {
-      expect(sanitizeStacktrace(
-          'foo (file:///Users/foo/tmp/error.dart:3:13)\n'
-          'bar (file:///Users/foo/tmp/error.dart:3:13)',
-          shorten: false),
+      expect(
+          sanitizeStacktrace(
+              'foo (file:///Users/foo/tmp/error.dart:3:13)\n'
+              'bar (file:///Users/foo/tmp/error.dart:3:13)',
+              shorten: false),
           'foo (error.dart:3:13)\nbar (error.dart:3:13)');
     });
 
     test('shorten 1', () {
-      expect(sanitizeStacktrace(
-          '(file:///Users/foo/tmp/error.dart:3:13)'),
+      expect(sanitizeStacktrace('(file:///Users/foo/tmp/error.dart:3:13)'),
           '(error.dart:3:13)');
     });
 
     test('shorten 2', () {
-      expect(sanitizeStacktrace(
-          'foo (file:///Users/foo/tmp/error.dart:3:13)\n'
-          'bar (file:///Users/foo/tmp/error.dart:3:13)'),
-          'foo (error.dart:3:13) bar (error.dart:3:13)');
+      expect(
+          sanitizeStacktrace('foo (file:///Users/foo/tmp/error.dart:3:13)\n'
+              'bar (file:///Users/foo/tmp/error.dart:3:13)'),
+          'foo (error.dart:3:13)\nbar (error.dart:3:13)');
     });
 
     test('shorten 3', () {
-      expect(sanitizeStacktrace(
-          'foo (package:foo/foo.dart:3:13)\n'
-          'bar (dart:async/schedule_microtask.dart:41)'),
-          'foo (foo/foo.dart:3:13) bar (async/schedule_microtask.dart:41)');
+      expect(
+          sanitizeStacktrace('foo (package:foo/foo.dart:3:13)\n'
+              'bar (dart:async/schedule_microtask.dart:41)'),
+          'foo (package:foo/foo.dart:3:13)\nbar (dart:async/schedule_microtask.dart:41)');
     });
   });
 }