replace OVERRIDE and FINAL with override and final in chrome/browser/[r-z]*

chrome/browser/tab_contents/navigation_metrics_recorder.h

Index: chrome/browser/tab_contents/navigation_metrics_recorder.h
diff --git a/chrome/browser/tab_contents/navigation_metrics_recorder.h b/chrome/browser/tab_contents/navigation_metrics_recorder.h
index ca3301e83b6315590d53010a1811eeea4b9cca8e..b8f645b6e84c959754758c6e3a1f057b4b9eca3f 100644
--- a/chrome/browser/tab_contents/navigation_metrics_recorder.h
+++ b/chrome/browser/tab_contents/navigation_metrics_recorder.h
@@ -21,10 +21,10 @@ class NavigationMetricsRecorder
   // content::WebContentsObserver overrides:
   virtual void DidNavigateMainFrame(
       const content::LoadCommittedDetails& details,
-      const content::FrameNavigateParams& params) OVERRIDE;
+      const content::FrameNavigateParams& params) override;
 
   virtual void DidStartLoading(
-      content::RenderViewHost* render_view_host) OVERRIDE;
+      content::RenderViewHost* render_view_host) override;
 
   DISALLOW_COPY_AND_ASSIGN(NavigationMetricsRecorder);
 };