Deprecate Math object in corelib in favor of dart:math library.

samples/third_party/dromaeo/common/common.dart

Index: samples/third_party/dromaeo/common/common.dart
diff --git a/samples/third_party/dromaeo/common/common.dart b/samples/third_party/dromaeo/common/common.dart
index 091f2c1f384104f2d36d2a31731ad4963b967274..28d27ce221331a1fe36613854f20d5640dd9a394 100644
--- a/samples/third_party/dromaeo/common/common.dart
+++ b/samples/third_party/dromaeo/common/common.dart
@@ -1,8 +1,9 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2012, 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('common.dart');
+#import('dart:math', prefix: 'Math');
 #source('BenchUtil.dart');
 #source('Interval.dart');
 #source('JSON.dart');