Standardize usage of virtual/override/final in content/

content/test/browser_test_utils_browsertest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/public/browser/resource_request_details.h"
 #include "content/public/test/browser_test_utils.h"
 #include "content/public/test/content_browser_test.h"
 #include "content/public/test/content_browser_test_utils.h"
 #include "content/shell/browser/shell.h"
 #include "net/dns/mock_host_resolver.h"
 #include "net/test/embedded_test_server/embedded_test_server.h"
 
 namespace content {
 
 class NavigationObserver: public WebContentsObserver {
  public:
   explicit NavigationObserver(WebContents* web_contents)
       : WebContentsObserver(web_contents) {}
-  virtual ~NavigationObserver() {}
+  ~NavigationObserver() override {}
 
-  virtual void DidCommitProvisionalLoadForFrame(
+  void DidCommitProvisionalLoadForFrame(
       RenderFrameHost* render_frame_host,
       const GURL& url,
       ui::PageTransition transition_type) override {
     navigation_url_ = url;
   }
 
-  virtual void DidGetRedirectForResourceRequest(
+  void DidGetRedirectForResourceRequest(
       RenderViewHost* render_view_host,
       const ResourceRedirectDetails& details) override {
     redirect_url_ = details.new_url;
   }
 
   const GURL& navigation_url() const {
     return navigation_url_;
   }
 
   const GURL& redirect_url() const {
@@ skipping 35 matching lines @@
   std::string foo_com("foo.com");
   GURL expected_url(embedded_test_server()->GetURL("/title2.html"));
   replace_host.SetHostStr(foo_com);
   expected_url = expected_url.ReplaceComponents(replace_host);
 
   EXPECT_EQ(expected_url, observer.navigation_url());
   EXPECT_EQ(observer.redirect_url(), observer.navigation_url());
 }
 
 }  // namespace content