Change imports etc to new syntax.

utils/testrunner/layout_test_controller.dart

 // 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.
 
 // The following set of variables should be set by the caller that
 // #sources this file.
 /** Whether to include elapsed time. */
+
+part of test_controller;
+
 bool includeTime;
 
 /** Path to DRT executable. */
 String drt;
 
 /** Whether to regenerate layout test files. */
 bool regenerate;
 
 /** Whether to output test summary. */
 bool summarize;
@@ skipping 286 matching lines @@
 void runPixelLayoutTests() {
   init();
   runPixelLayoutTest(0);
 }
 
 void runTextLayoutTests() {
   init();
   runTextLayoutTest(0);
 }