Update remaining usages of Completer.completeException.

tools/dom/src/Measurement.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.
 
 part of html;
 
 typedef Object ComputeValue();
 
 class _MeasurementRequest<T> {
   final ComputeValue computeValue;
@@ skipping 166 matching lines @@
     }
   }
 
   final completedRequests = _pendingRequests;
   final readyMeasurementFrameCallbacks = _pendingMeasurementFrameCallbacks;
   _pendingRequests = null;
   _pendingMeasurementFrameCallbacks = null;
   if (completedRequests != null) {
     for (_MeasurementRequest request in completedRequests) {
       if (request.exception) {
-        request.completer.completeException(request.value);
+        request.completer.completeError(request.value);
       } else {
         request.completer.complete(request.value);
       }
     }
   }
 
   if (readyMeasurementFrameCallbacks != null) {
     for (TimeoutHandler handler in readyMeasurementFrameCallbacks) {
       // TODO(jacobr): wrap each call to a handler in a try-catch block.
       handler();
     }
   }
 }