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

chrome/browser/dom_distiller/tab_utils_browsertest.cc

Index: chrome/browser/dom_distiller/tab_utils_browsertest.cc
diff --git a/chrome/browser/dom_distiller/tab_utils_browsertest.cc b/chrome/browser/dom_distiller/tab_utils_browsertest.cc
index 7c79188f07d4950a395894bee06b56b33c6f97f0..6620b6dbe27a2de74a4bcd512baf554fb299caa1 100644
--- a/chrome/browser/dom_distiller/tab_utils_browsertest.cc
+++ b/chrome/browser/dom_distiller/tab_utils_browsertest.cc
@@ -32,7 +32,7 @@ const char* kSimpleArticlePath = "/dom_distiller/simple_article.html";
 
 class DomDistillerTabUtilsBrowserTest : public InProcessBrowserTest {
  public:
-  virtual void SetUpCommandLine(CommandLine* command_line) override {
+  void SetUpCommandLine(CommandLine* command_line) override {
     command_line->AppendSwitch(switches::kEnableDomDistiller);
   }
 };
@@ -45,8 +45,8 @@ class WebContentsMainFrameHelper : public content::WebContentsObserver {
     content::WebContentsObserver::Observe(web_contents);
   }
 
-  virtual void DidFinishLoad(content::RenderFrameHost* render_frame_host,
-                             const GURL& validated_url) override {
+  void DidFinishLoad(content::RenderFrameHost* render_frame_host,
+                     const GURL& validated_url) override {
     if (!render_frame_host->GetParent() &&
         validated_url.scheme() == kDomDistillerScheme)
       callback_.Run();