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

chrome/browser/media/wv_test_license_server_config.h

Index: chrome/browser/media/wv_test_license_server_config.h
diff --git a/chrome/browser/media/wv_test_license_server_config.h b/chrome/browser/media/wv_test_license_server_config.h
index 60e12c81fd65825ca2be88e6e3e6fc06da36358a..f7901bd34d367c3af33c52324e3d151a92d798d2 100644
--- a/chrome/browser/media/wv_test_license_server_config.h
+++ b/chrome/browser/media/wv_test_license_server_config.h
@@ -11,13 +11,13 @@
 class WVTestLicenseServerConfig : public TestLicenseServerConfig {
  public:
   WVTestLicenseServerConfig();
-  virtual ~WVTestLicenseServerConfig();
+  ~WVTestLicenseServerConfig() override;
 
-  virtual std::string GetServerURL() override;
+  std::string GetServerURL() override;
 
-  virtual bool GetServerCommandLine(base::CommandLine* command_line) override;
+  bool GetServerCommandLine(base::CommandLine* command_line) override;
 
-  virtual bool IsPlatformSupported() override;
+  bool IsPlatformSupported() override;
 
  private:
   // Server port. The port value should be set by calling SelectServerPort().