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

chrome/browser/ui/webui/profiler_ui.h

Index: chrome/browser/ui/webui/profiler_ui.h
diff --git a/chrome/browser/ui/webui/profiler_ui.h b/chrome/browser/ui/webui/profiler_ui.h
index 9d4c525f8545d330bfe5d5b79d91c9a907529438..d4546c27b58dcec43d85b80dd29a8dfe904bad0b 100644
--- a/chrome/browser/ui/webui/profiler_ui.h
+++ b/chrome/browser/ui/webui/profiler_ui.h
@@ -14,14 +14,14 @@ class ProfilerUI : public content::WebUIController,
                    public metrics::TrackingSynchronizerObserver {
  public:
   explicit ProfilerUI(content::WebUI* web_ui);
-  virtual ~ProfilerUI();
+  ~ProfilerUI() override;
 
   // Get the tracking data from TrackingSynchronizer.
   void GetData();
 
  private:
   // TrackingSynchronizerObserver:
-  virtual void ReceivedProfilerData(
+  void ReceivedProfilerData(
       const tracked_objects::ProcessDataSnapshot& profiler_data,
       int process_type) override;