replace OVERRIDE and FINAL with override and final in chrome/browser/ui/[a-s]*

chrome/browser/ui/cocoa/download/download_item_mac.h

Index: chrome/browser/ui/cocoa/download/download_item_mac.h
diff --git a/chrome/browser/ui/cocoa/download/download_item_mac.h b/chrome/browser/ui/cocoa/download/download_item_mac.h
index 7a576ce5a42fcd1925224a11a91bdb8b56180a89..14d80e5c535e4e42536d17dd8be9b6d148749d83 100644
--- a/chrome/browser/ui/cocoa/download/download_item_mac.h
+++ b/chrome/browser/ui/cocoa/download/download_item_mac.h
@@ -32,9 +32,9 @@ class DownloadItemMac : content::DownloadItem::Observer {
   virtual ~DownloadItemMac();
 
   // content::DownloadItem::Observer implementation
-  virtual void OnDownloadUpdated(content::DownloadItem* download) OVERRIDE;
-  virtual void OnDownloadOpened(content::DownloadItem* download) OVERRIDE;
-  virtual void OnDownloadDestroyed(content::DownloadItem* download) OVERRIDE;
+  virtual void OnDownloadUpdated(content::DownloadItem* download) override;
+  virtual void OnDownloadOpened(content::DownloadItem* download) override;
+  virtual void OnDownloadDestroyed(content::DownloadItem* download) override;
 
   DownloadItemModel* download_model() { return &download_model_; }