Standardize usage of virtual/override/final in chrome/browser/

chrome/browser/bitmap_fetcher/bitmap_fetcher_service_unittest.cc

Index: chrome/browser/bitmap_fetcher/bitmap_fetcher_service_unittest.cc
diff --git a/chrome/browser/bitmap_fetcher/bitmap_fetcher_service_unittest.cc b/chrome/browser/bitmap_fetcher/bitmap_fetcher_service_unittest.cc
index 2767455e2bb36171785e3184f8cda0565bc28dca..7d395aaa54a470e5fc079e34fcf02d315bd7dbb9 100644
--- a/chrome/browser/bitmap_fetcher/bitmap_fetcher_service_unittest.cc
+++ b/chrome/browser/bitmap_fetcher/bitmap_fetcher_service_unittest.cc
@@ -20,10 +20,10 @@ class TestNotificationInterface {
 class TestObserver : public BitmapFetcherService::Observer {
  public:
   explicit TestObserver(TestNotificationInterface* target) : target_(target) {}
-  virtual ~TestObserver() { target_->OnRequestFinished(); }
+  ~TestObserver() override { target_->OnRequestFinished(); }
 
-  virtual void OnImageChanged(BitmapFetcherService::RequestId request_id,
-                              const SkBitmap& answers_image) override {
+  void OnImageChanged(BitmapFetcherService::RequestId request_id,
+                      const SkBitmap& answers_image) override {
     target_->OnImageChanged();
   }
 
@@ -34,11 +34,11 @@ class TestService : public BitmapFetcherService {
  public:
   explicit TestService(content::BrowserContext* context)
       : BitmapFetcherService(context) {}
-  virtual ~TestService() {}
+  ~TestService() override {}
 
   // Create a fetcher, but don't start downloading. That allows side-stepping
   // the decode step, which requires a utility process.
-  virtual chrome::BitmapFetcher* CreateFetcher(const GURL& url) override {
+  chrome::BitmapFetcher* CreateFetcher(const GURL& url) override {
     return new chrome::BitmapFetcher(url, this);
   }
 };
@@ -64,9 +64,9 @@ class BitmapFetcherServiceTest : public testing::Test,
   }
   size_t cache_size() { return service_->cache_.size(); }
 
-  virtual void OnImageChanged() override { imagesChanged_++; }
+  void OnImageChanged() override { imagesChanged_++; }
 
-  virtual void OnRequestFinished() override { requestsFinished_++; }
+  void OnRequestFinished() override { requestsFinished_++; }
 
   // Simulate finishing a URL fetch and decode for the given fetcher.
   void CompleteFetch(const GURL& url) {