Roll Observatory deps (charted -> ^0.3.0)

packages/smoke/test/codegen/common.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 smoke.test.codegen.common;
 
 import 'package:smoke/codegen/generator.dart';
-import 'package:unittest/unittest.dart';
+import 'package:test/test.dart';
 
 checkResults(SmokeCodeGenerator generator,
     {List<String> imports: const [], String topLevel: '', String initCall}) {
   var allImports = []
     ..addAll(DEFAULT_IMPORTS)
     ..addAll(imports)
     ..add('');
   var genImports = new StringBuffer();
   generator.writeImports(genImports);
   expect(genImports.toString(), allImports.join('\n'));
 
   var genTopLevel = new StringBuffer();
   generator.writeTopLevelDeclarations(genTopLevel);
   expect(genTopLevel.toString(), topLevel);
 
   var indentedCode = initCall.replaceAll("\n", "\n  ").trim();
   var genInitCall = new StringBuffer();
   genInitCall.write('  useGeneratedCode(');
   generator.writeStaticConfiguration(genInitCall);
   genInitCall.writeln(');');
   expect(genInitCall.toString(), '  $indentedCode\n');
 }