Revert "Revert breaking CL"

tools/dom/src/native_DOMImplementation.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;
 
 class _ConsoleVariables {
   Map<String, Object> _data = new Map<String, Object>();
 
   /**
@@ skipping 61 matching lines @@
 
   static List parseStackTrace(StackTrace stackTrace) {
     final regExp = new RegExp(r'#\d\s+(.*) \((.*):(\d+):(\d+)\)');
     List result = [];
     for (var match in regExp.allMatches(stackTrace.toString())) {
       result.add([match.group(1), match.group(2), int.parse(match.group(3)), int.parse(match.group(4))]);
     }
     return result;
   }
 
+  static List captureParsedStackTrace() {
+    try {
+      // Throwing an exception is the only way to generate a stack trace.
+      throw new Exception();
+    } catch (e, stackTrace) {
+      return parseStackTrace(stackTrace);
+    }
+  }
+
   static void populateMap(Map result, List list) {
     for (int i = 0; i < list.length; i += 2) {
       result[list[i]] = list[i + 1];
     }
   }
 
   static bool isMap(obj) => obj is Map;
 
   static List toListIfIterable(obj) => obj is Iterable ? obj.toList() : null;
 
@@ skipping 503 matching lines @@
   _scheduleImmediateHelper._schedule(callback);
 };
 
 get _pureIsolateScheduleImmediateClosure => ((void callback()) =>
   throw new UnimplementedError("scheduleMicrotask in background isolates "
                                "are not supported in the browser"));
 
 void _initializeCustomElement(Element e) {
   _Utils.initializeCustomElement(e);
 }