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pkg/polymer/lib/src/loader.dart

Index: pkg/polymer/lib/src/loader.dart
diff --git a/pkg/polymer/lib/src/loader.dart b/pkg/polymer/lib/src/loader.dart
index 7a04ef1a272c64c48b8bfc4bdfda9a05d159b425..afe568465196b1a62a188e73249d0576f348b8fa 100644
--- a/pkg/polymer/lib/src/loader.dart
+++ b/pkg/polymer/lib/src/loader.dart
@@ -33,7 +33,9 @@ Zone initPolymer() {
   // TODO(sigmund): fix polymer's transformers so they can replace initPolymer
   // by initPolymerOptimized.
   if (_initializers == null) _initializers = _discoverInitializers();
-  if (_useDirtyChecking) {
+
+  // In deployment mode, we rely on change notifiers instead of dirty checking.
+  if (!_deployMode) {
     return dirtyCheckZone()..run(initPolymerOptimized);
   }
 
@@ -74,7 +76,7 @@ Zone initPolymerOptimized() {
  */
 void configureForDeployment(List<Function> initializers) {
   _initializers = initializers;
-  _useDirtyChecking = false;
+  _deployMode = true;
 }
 
 /**
@@ -88,7 +90,8 @@ void configureForDeployment(List<Function> initializers) {
  */
 List<Function> _initializers;
 
-bool _useDirtyChecking = true;
+/** True if we're in deployment mode. */
+bool _deployMode = false;
 
 List<Function> _discoverInitializers() {
   var initializers = [];