Add OVERRIDE to base/.

base/file_version_info_mac.h

Index: base/file_version_info_mac.h
diff --git a/base/file_version_info_mac.h b/base/file_version_info_mac.h
index 7c0184a11939eebb0648e406650c72af45f5a3b0..3560fea5feed8856df1f0c31f742a3653e8b9341 100644
--- a/base/file_version_info_mac.h
+++ b/base/file_version_info_mac.h
@@ -24,22 +24,22 @@ class FileVersionInfoMac : public FileVersionInfo {
 
   // Accessors to the different version properties.
   // Returns an empty string if the property is not found.
-  virtual string16 company_name();
-  virtual string16 company_short_name();
-  virtual string16 product_name();
-  virtual string16 product_short_name();
-  virtual string16 internal_name();
-  virtual string16 product_version();
-  virtual string16 private_build();
-  virtual string16 special_build();
-  virtual string16 comments();
-  virtual string16 original_filename();
-  virtual string16 file_description();
-  virtual string16 file_version();
-  virtual string16 legal_copyright();
-  virtual string16 legal_trademarks();
-  virtual string16 last_change();
-  virtual bool is_official_build();
+  virtual string16 company_name() OVERRIDE;
+  virtual string16 company_short_name() OVERRIDE;
+  virtual string16 product_name() OVERRIDE;
+  virtual string16 product_short_name() OVERRIDE;
+  virtual string16 internal_name() OVERRIDE;
+  virtual string16 product_version() OVERRIDE;
+  virtual string16 private_build() OVERRIDE;
+  virtual string16 special_build() OVERRIDE;
+  virtual string16 comments() OVERRIDE;
+  virtual string16 original_filename() OVERRIDE;
+  virtual string16 file_description() OVERRIDE;
+  virtual string16 file_version() OVERRIDE;
+  virtual string16 legal_copyright() OVERRIDE;
+  virtual string16 legal_trademarks() OVERRIDE;
+  virtual string16 last_change() OVERRIDE;
+  virtual bool is_official_build() OVERRIDE;
 
  private:
   // Returns a string16 value for a property name.