Standardize usage of virtual/override/final in content/

content/test/test_frame_navigation_observer.h

 // 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.
 
 #ifndef CONTENT_TEST_TEST_FRAME_NAVIGATION_OBSERVER_H_
 #define CONTENT_TEST_TEST_FRAME_NAVIGATION_OBSERVER_H_
 
 #include <set>
 
 #include "base/callback.h"
@@ skipping 14 matching lines @@
 // MessageLoop and quit when the navigation in a specific frame completes
 // loading.
 class TestFrameNavigationObserver : public WebContentsObserver {
  public:
   // Create and register a new TestFrameNavigationObserver which will track
   // navigations performed in the specified |node| of the frame tree.
   TestFrameNavigationObserver(FrameTreeNode* node, int number_of_navigations);
   // As above but waits for one navigation.
   explicit TestFrameNavigationObserver(FrameTreeNode* node);
 
-  virtual ~TestFrameNavigationObserver();
+  ~TestFrameNavigationObserver() override;
 
   // Runs a nested message loop and blocks until the expected number of
   // navigations are complete.
   void Wait();
 
  private:
   // WebContentsObserver
-  virtual void DidStartProvisionalLoadForFrame(
-      RenderFrameHost* render_frame_host,
-      const GURL& validated_url,
-      bool is_error_page,
-      bool is_iframe_srcdoc) override;
-  virtual void DidNavigateAnyFrame(
-      RenderFrameHost* render_frame_host,
-      const LoadCommittedDetails& details,
-      const FrameNavigateParams& params) override;
+  void DidStartProvisionalLoadForFrame(RenderFrameHost* render_frame_host,
+                                       const GURL& validated_url,
+                                       bool is_error_page,
+                                       bool is_iframe_srcdoc) override;
+  void DidNavigateAnyFrame(RenderFrameHost* render_frame_host,
+                           const LoadCommittedDetails& details,
+                           const FrameNavigateParams& params) override;
 
   // The id of the FrameTreeNode in which navigations are peformed.
   int frame_tree_node_id_;
 
   // If true the navigation has started.
   bool navigation_started_;
 
   // The number of navigations that have been completed.
   int navigations_completed_;
 
   // The number of navigations to wait for.
   int number_of_navigations_;
 
   // The MessageLoopRunner used to spin the message loop.
   scoped_refptr<MessageLoopRunner> message_loop_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(TestFrameNavigationObserver);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_TEST_TEST_FRAME_NAVIGATION_OBSERVER_H_