Standardize usage of virtual/override/final specifiers.

chrome/browser/download/download_request_limiter_unittest.cc

Index: chrome/browser/download/download_request_limiter_unittest.cc
diff --git a/chrome/browser/download/download_request_limiter_unittest.cc b/chrome/browser/download/download_request_limiter_unittest.cc
index 19931c092a80677870b5e5f8cc01276433f22d42..efad225ab2e74db5ac64afc77be966ad84d68c0d 100644
--- a/chrome/browser/download/download_request_limiter_unittest.cc
+++ b/chrome/browser/download/download_request_limiter_unittest.cc
@@ -60,7 +60,7 @@ class DownloadRequestLimiterTest : public ChromeRenderViewHostTestHarness {
     WAIT
   };
 
-  virtual void SetUp() {
+  void SetUp() override {
     ChromeRenderViewHostTestHarness::SetUp();
     InfoBarService::CreateForWebContents(web_contents());
 
@@ -106,7 +106,7 @@ class DownloadRequestLimiterTest : public ChromeRenderViewHostTestHarness {
     }
   }
 
-  virtual void TearDown() {
+  void TearDown() override {
     content_settings_->ShutdownOnUIThread();
     content_settings_ = NULL;
     UnsetDelegate();