Initial implementation of "Rename Local Variable" refactoring.

editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/refactoring/reorg/RenameUserInterfaceStarter.java

Index: editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/refactoring/reorg/RenameUserInterfaceStarter.java
diff --git a/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/refactoring/reorg/RenameUserInterfaceStarter.java b/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/refactoring/reorg/RenameUserInterfaceStarter.java
new file mode 100644
index 0000000000000000000000000000000000000000..9285bc34f5d2bae1619851455418ad3fadd0ad6a
--- /dev/null
+++ b/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/refactoring/reorg/RenameUserInterfaceStarter.java
@@ -0,0 +1,30 @@
+package com.google.dart.tools.ui.internal.refactoring.reorg;
+
+import com.google.dart.tools.internal.corext.refactoring.reorg.RenameSelectionState;
+import com.google.dart.tools.internal.corext.refactoring.tagging.INameUpdating;
+import com.google.dart.tools.ui.internal.refactoring.UserInterfaceStarter;
+
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.ltk.core.refactoring.Refactoring;
+import org.eclipse.ltk.core.refactoring.participants.RenameProcessor;
+import org.eclipse.swt.widgets.Shell;
+
+public class RenameUserInterfaceStarter extends UserInterfaceStarter {
+
+  @Override
+  public boolean activate(Refactoring refactoring, Shell parent, int saveMode) throws CoreException {
+    RenameProcessor processor = (RenameProcessor) refactoring.getAdapter(RenameProcessor.class);
+    Object[] elements = processor.getElements();
+    RenameSelectionState state = elements.length == 1 ? new RenameSelectionState(elements[0])
+        : null;
+    boolean executed = super.activate(refactoring, parent, saveMode);
+    INameUpdating nameUpdating = (INameUpdating) refactoring.getAdapter(INameUpdating.class);
+    if (executed && nameUpdating != null && state != null) {
+      Object newElement = nameUpdating.getNewElement();
+      if (newElement != null) {
+        state.restore(newElement);
+      }
+    }
+    return executed;
+  }
+}