replace OVERRIDE and FINAL with override and final in chrome/browser/extensions/

chrome/browser/extensions/api/preference/preference_api.cc

Index: chrome/browser/extensions/api/preference/preference_api.cc
diff --git a/chrome/browser/extensions/api/preference/preference_api.cc b/chrome/browser/extensions/api/preference/preference_api.cc
index 68f0d7c8220302393edfe24e03ff2cb43964d98b..1eeb6f08fdd8431c303266c15c12b4fe2384f936 100644
--- a/chrome/browser/extensions/api/preference/preference_api.cc
+++ b/chrome/browser/extensions/api/preference/preference_api.cc
@@ -125,12 +125,12 @@ class IdentityPrefTransformer : public PrefTransformerInterface {
  public:
   virtual base::Value* ExtensionToBrowserPref(const base::Value* extension_pref,
                                               std::string* error,
-                                              bool* bad_message) OVERRIDE {
+                                              bool* bad_message) override {
     return extension_pref->DeepCopy();
   }
 
   virtual base::Value* BrowserToExtensionPref(
-      const base::Value* browser_pref) OVERRIDE {
+      const base::Value* browser_pref) override {
     return browser_pref->DeepCopy();
   }
 };
@@ -139,12 +139,12 @@ class InvertBooleanTransformer : public PrefTransformerInterface {
  public:
   virtual base::Value* ExtensionToBrowserPref(const base::Value* extension_pref,
                                               std::string* error,
-                                              bool* bad_message) OVERRIDE {
+                                              bool* bad_message) override {
     return InvertBooleanValue(extension_pref);
   }
 
   virtual base::Value* BrowserToExtensionPref(
-      const base::Value* browser_pref) OVERRIDE {
+      const base::Value* browser_pref) override {
     return InvertBooleanValue(browser_pref);
   }