Revert "Update all Angular libs (run update_all.sh)."

third_party/pkg/angular/lib/core_dom/mustache.dart

-part of angular.core.dom_internal;
-
-// This Directive is special and does not go through injection.
-@Decorator(selector: r':contains(/{{.*}}/)')
-class TextMustache {
-  final dom.Node _element;
-
-  TextMustache(this._element,
-                          String template,
-                          Interpolate interpolate,
-                          Scope scope,
-                          FormatterMap formatters) {
-    String expression = interpolate(template);
-
-    scope.watch(expression,
-                _updateMarkup,
-                canChangeModel: false,
-                formatters: formatters);
-  }
-
-  void _updateMarkup(text, previousText) {
-    _element.text = text;
-  }
-}
-
-// This Directive is special and does not go through injection.
-@Decorator(selector: r'[*=/{{.*}}/]')
-class AttrMustache {
-  bool _hasObservers;
-  Watch _watch;
-  NodeAttrs _attrs;
-  String _attrName;
-
-  // This Directive is special and does not go through injection.
-  AttrMustache(this._attrs,
-                          String template,
-                          Interpolate interpolate,
-                          Scope scope,
-                          FormatterMap formatters) {
-    var eqPos = template.indexOf('=');
-    _attrName = template.substring(0, eqPos);
-    String expression = interpolate(template.substring(eqPos + 1));
-
-    _updateMarkup('', template);
-
-    _attrs.listenObserverChanges(_attrName, (hasObservers) {
-    if (_hasObservers != hasObservers) {
-      _hasObservers = hasObservers;
-      if (_watch != null) _watch.remove();
-        _watch = scope.watch(expression, _updateMarkup, formatters: formatters,
-            canChangeModel: _hasObservers);
-      }
-    });
-  }
-
-  void _updateMarkup(text, previousText) {
-    if (text != previousText && !(previousText == null && text == '')) {
-        _attrs[_attrName] = text;
-    }
-  }
-}
-