Merge libv1.

editor/tools/plugins/com.google.dart.tools.core_test/src/com/google/dart/tools/core/test/util/TestUtilities.java

Index: editor/tools/plugins/com.google.dart.tools.core_test/src/com/google/dart/tools/core/test/util/TestUtilities.java
diff --git a/editor/tools/plugins/com.google.dart.tools.core_test/src/com/google/dart/tools/core/test/util/TestUtilities.java b/editor/tools/plugins/com.google.dart.tools.core_test/src/com/google/dart/tools/core/test/util/TestUtilities.java
index bbbd43952b7796608f7d520b9a191e89c474c161..ec7d73bc9c3a09c91c72ca6ac59f688947507662 100644
--- a/editor/tools/plugins/com.google.dart.tools.core_test/src/com/google/dart/tools/core/test/util/TestUtilities.java
+++ b/editor/tools/plugins/com.google.dart.tools.core_test/src/com/google/dart/tools/core/test/util/TestUtilities.java
@@ -16,6 +16,7 @@ package com.google.dart.tools.core.test.util;
 import com.google.dart.engine.utilities.io.PrintStringWriter;
 import com.google.dart.tools.core.DartCore;
 import com.google.dart.tools.core.analysis.AnalysisTestUtilities;
+import com.google.dart.tools.core.internal.model.DartModelManager;
 import com.google.dart.tools.core.model.DartProject;
 
 import junit.framework.Assert;
@@ -460,6 +461,17 @@ public class TestUtilities {
   }
 
   /**
+   * Wait until all delta processor changes have been processed.
+   */
+  public static void processAllDeltaChanges() {
+    try {
+      DartModelManager.getInstance().processAllDeltaChanges(30 * 1000);
+    } catch (InterruptedException e) {
+
+    }
+  }
+
+  /**
    * Refresh the content of the workspace to be consistent with what's on disk.
    */
   public static void refreshWorkspace() {