Standardize usage of virtual/override/final in chrome/

chrome/service/service_process.h

Index: chrome/service/service_process.h
diff --git a/chrome/service/service_process.h b/chrome/service/service_process.h
index c37c1be063c373416f2e7e7907b92ada6013c25e..1b2bc78885e5eb8223aa6a0aca92c8f9f98d5191 100644
--- a/chrome/service/service_process.h
+++ b/chrome/service/service_process.h
@@ -35,7 +35,7 @@ class NetworkChangeNotifier;
 class ServiceProcess : public cloud_print::CloudPrintProxy::Client {
  public:
   ServiceProcess();
-  virtual ~ServiceProcess();
+  ~ServiceProcess() override;
 
   // Initialize the ServiceProcess with the message loop that it should run on.
   // ServiceProcess takes ownership of |state|.
@@ -90,8 +90,8 @@ class ServiceProcess : public cloud_print::CloudPrintProxy::Client {
   cloud_print::CloudPrintProxy* GetCloudPrintProxy();
 
   // CloudPrintProxy::Client implementation.
-  virtual void OnCloudPrintProxyEnabled(bool persist_state) override;
-  virtual void OnCloudPrintProxyDisabled(bool persist_state) override;
+  void OnCloudPrintProxyEnabled(bool persist_state) override;
+  void OnCloudPrintProxyDisabled(bool persist_state) override;
 
   ServiceURLRequestContextGetter* GetServiceURLRequestContextGetter();