Initial implementation of "Rename Local Variable" refactoring.

editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/refactoring/tagging/IQualifiedNameUpdating.java

Index: editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/refactoring/tagging/IQualifiedNameUpdating.java
diff --git a/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/refactoring/tagging/IQualifiedNameUpdating.java b/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/refactoring/tagging/IQualifiedNameUpdating.java
new file mode 100644
index 0000000000000000000000000000000000000000..9326be5ffcc61b82209887a18051be52eb0e43a1
--- /dev/null
+++ b/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/refactoring/tagging/IQualifiedNameUpdating.java
@@ -0,0 +1,30 @@
+package com.google.dart.tools.internal.corext.refactoring.tagging;
+
+public interface IQualifiedNameUpdating {
+
+  /**
+   * Performs a dynamic check whether this refactoring object is capable of updating qualified names
+   * in non Dart files. The return value of this method may change according to the state of the
+   * refactoring.
+   */
+  public boolean canEnableQualifiedNameUpdating();
+
+  public String getFilePatterns();
+
+  /**
+   * If <code>canEnableQualifiedNameUpdating</code> returns <code>true</code>, then this method is
+   * used to ask the refactoring object whether references in non Dart files should be updated. This
+   * call can be ignored if <code>canEnableQualifiedNameUpdating</code> returns <code>false</code>.
+   */
+  public boolean getUpdateQualifiedNames();
+
+  public void setFilePatterns(String patterns);
+
+  /**
+   * If <code>canEnableQualifiedNameUpdating</code> returns <code>true</code>, then this method is
+   * used to inform the refactoring object whether references in non Dart files should be updated.
+   * This call can be ignored if <code>canEnableQualifiedNameUpdating</code> returns
+   * <code>false</code>.
+   */
+  public void setUpdateQualifiedNames(boolean update);
+}