Add OVERRIDE to chrome/browser/.

chrome/browser/importer/toolbar_importer.h

Index: chrome/browser/importer/toolbar_importer.h
diff --git a/chrome/browser/importer/toolbar_importer.h b/chrome/browser/importer/toolbar_importer.h
index 5c14f327b583a353fb7ff4cb1fa89b7113480a44..2e8ddb1eab177e8a4a801119210e3af414547025 100644
--- a/chrome/browser/importer/toolbar_importer.h
+++ b/chrome/browser/importer/toolbar_importer.h
@@ -46,10 +46,10 @@ class Toolbar5Importer : public content::URLFetcherDelegate, public Importer {
   // Importer view call this method when the user clicks the cancel button
   // in the tabbed options UI.  We need to post a message to our loop
   // to cancel network retrieval.
-  virtual void Cancel();
+  virtual void Cancel() OVERRIDE;
 
   // content::URLFetcherDelegate method called back from the URLFetcher object.
-  virtual void OnURLFetchComplete(const content::URLFetcher* source);
+  virtual void OnURLFetchComplete(const content::URLFetcher* source) OVERRIDE;
 
  private:
   FRIEND_TEST_ALL_PREFIXES(Toolbar5ImporterTest, BookmarkParse);