Add observatory_pub_packages snapshot to third_party

observatory_pub_packages/analyzer/src/services/runtime/log.dart

Index: observatory_pub_packages/analyzer/src/services/runtime/log.dart
===================================================================
--- observatory_pub_packages/analyzer/src/services/runtime/log.dart	(revision 0)
+++ observatory_pub_packages/analyzer/src/services/runtime/log.dart	(working copy)
@@ -0,0 +1,49 @@
+// Copyright (c) 2013, 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.
+
+/// Simple wrapper for [Logger] library.
+library runtime.log;
+
+import "package:logging/logging.dart";
+
+/** Log message at level [Level.FINEST]. */
+void finest(String message) => _logger.log(Level.FINEST, message);
+
+/** Log message at level [Level.FINER]. */
+void finer(String message) => _logger.log(Level.FINER, message);
+
+/** Log message at level [Level.FINE]. */
+void fine(String message) => _logger.log(Level.FINE, message);
+
+/** Log message at level [Level.CONFIG]. */
+void config(String message) => _logger.log(Level.CONFIG, message);
+
+/** Log message at level [Level.INFO]. */
+void info(String message) => _logger.log(Level.INFO, message);
+
+/** Log message at level [Level.WARNING]. */
+void warning(String message) => _logger.log(Level.WARNING, message);
+
+/** Log message at level [Level.SEVERE]. */
+void severe(String message) => _logger.log(Level.SEVERE, message);
+
+/** Log message at level [Level.SHOUT]. */
+void shout(String message) => _logger.log(Level.SHOUT, message);
+
+/// Specifies that all log records should be logged.
+void everything() {
+  _logger.level = Level.ALL;
+}
+
+/// Sends all log record to the console.
+void toConsole() {
+  _logger.onRecord.listen((LogRecord record) {
+    String levelString = record.level.toString();
+    while (levelString.length < 6) levelString += ' ';
+    print('${record.time}: ${levelString} ${record.message}');
+  });
+}
+
+/// The root [Logger].
+final Logger _logger = Logger.root;