Initial binding of RenameRefactoring service to Eclipse.

editor/tools/plugins/com.google.dart.engine.services/src/com/google/dart/engine/services/internal/refactoring/RenameRefactoringImpl.java

Index: editor/tools/plugins/com.google.dart.engine.services/src/com/google/dart/engine/services/internal/refactoring/RenameRefactoringImpl.java
diff --git a/editor/tools/plugins/com.google.dart.engine.services/src/com/google/dart/engine/services/internal/refactoring/RenameRefactoringImpl.java b/editor/tools/plugins/com.google.dart.engine.services/src/com/google/dart/engine/services/internal/refactoring/RenameRefactoringImpl.java
index e42b14010f88dfd3dd5ecbd88667cfb3058a2c89..ebc62349e79e4592bab772c532896467790e52ec 100644
--- a/editor/tools/plugins/com.google.dart.engine.services/src/com/google/dart/engine/services/internal/refactoring/RenameRefactoringImpl.java
+++ b/editor/tools/plugins/com.google.dart.engine.services/src/com/google/dart/engine/services/internal/refactoring/RenameRefactoringImpl.java
@@ -51,6 +51,11 @@ public abstract class RenameRefactoringImpl extends RenameRefactoring {
 
   @Override
   public RefactoringStatus checkInitialConditions(ProgressMonitor pm) throws Exception {
+    return new RefactoringStatus();
+  }
+
+  @Override
+  public RefactoringStatus checkNewName(String newName) {
     RefactoringStatus result = new RefactoringStatus();
     if (Objects.equal(newName, element.getName())) {
       result.addFatalError("Choose another name.");
@@ -58,6 +63,16 @@ public abstract class RenameRefactoringImpl extends RenameRefactoring {
     return result;
   }
 
+  @Override
+  public String getCurrentName() {
+    return element.getName();
+  }
+
+  @Override
+  public String getNewName() {
+    return newName;
+  }
+
   /**
    * @return the {@link Set} with all direct and indirect sub {@link ClassElement}s of the given.
    */