Standardize usage of virtual/override/final in chrome/

chrome/test/chromedriver/session_commands_unittest.cc

Index: chrome/test/chromedriver/session_commands_unittest.cc
diff --git a/chrome/test/chromedriver/session_commands_unittest.cc b/chrome/test/chromedriver/session_commands_unittest.cc
index 0ca527deeeacb7798b5d68524888be11479ef18b..957da7b54ca10982a8cdf1ad8675256c296a78e0 100644
--- a/chrome/test/chromedriver/session_commands_unittest.cc
+++ b/chrome/test/chromedriver/session_commands_unittest.cc
@@ -47,10 +47,10 @@ namespace {
 class DetachChrome : public StubChrome {
  public:
   DetachChrome() : quit_called_(false) {}
-  virtual ~DetachChrome() {}
+  ~DetachChrome() override {}
 
   // Overridden from Chrome:
-  virtual Status Quit() override {
+  Status Quit() override {
     quit_called_ = true;
     return Status(kOk);
   }
@@ -95,12 +95,10 @@ namespace {
 class FailsToQuitChrome : public StubChrome {
  public:
   FailsToQuitChrome() {}
-  virtual ~FailsToQuitChrome() {}
+  ~FailsToQuitChrome() override {}
 
   // Overridden from Chrome:
-  virtual Status Quit() override {
-    return Status(kUnknownError);
-  }
+  Status Quit() override { return Status(kUnknownError); }
 };
 
 }  // namespace