replace OVERRIDE and FINAL with override and final in chrome/browser/[r-z]*

chrome/browser/search/hotword_service_unittest.cc

Index: chrome/browser/search/hotword_service_unittest.cc
diff --git a/chrome/browser/search/hotword_service_unittest.cc b/chrome/browser/search/hotword_service_unittest.cc
index b878ee940eca1d27c9e69b3c537765537d2374d0..95da430d3574ed56617de3dcc22d124df343499e 100644
--- a/chrome/browser/search/hotword_service_unittest.cc
+++ b/chrome/browser/search/hotword_service_unittest.cc
@@ -31,12 +31,12 @@ class MockHotwordService : public HotwordService {
   }
 
   virtual bool UninstallHotwordExtension(
-      ExtensionService* extension_service) OVERRIDE {
+      ExtensionService* extension_service) override {
     uninstall_count_++;
     return HotwordService::UninstallHotwordExtension(extension_service);
   }
 
-  virtual void InstallHotwordExtensionFromWebstore() OVERRIDE{
+  virtual void InstallHotwordExtensionFromWebstore() override{
     scoped_ptr<base::DictionaryValue> manifest =
         extensions::DictionaryBuilder()
         .Set("name", "Hotword Test Extension")