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

chrome/browser/media/media_browsertest.h

Index: chrome/browser/media/media_browsertest.h
diff --git a/chrome/browser/media/media_browsertest.h b/chrome/browser/media/media_browsertest.h
index 995f7b11fc1be458b69d639061f48ca731d9ee05..67a62a11ab6a50837b2ee7260a9bedf04682dad2 100644
--- a/chrome/browser/media/media_browsertest.h
+++ b/chrome/browser/media/media_browsertest.h
@@ -48,8 +48,8 @@ class MediaBrowserTest : public InProcessBrowserTest,
 
   // Fails test and sets document title to kPluginCrashed when a plugin crashes.
   // If IgnorePluginCrash(true) is called then plugin crash is ignored.
-  virtual void PluginCrashed(const base::FilePath& plugin_path,
-                             base::ProcessId plugin_pid) override;
+  void PluginCrashed(const base::FilePath& plugin_path,
+                     base::ProcessId plugin_pid) override;
 
   // When called, the test will ignore any plugin crashes and not fail the test.
   void IgnorePluginCrash();