Standardize usage of virtual/override/final specifiers.

chrome/renderer/translate/translate_helper_browsertest.cc

Index: chrome/renderer/translate/translate_helper_browsertest.cc
diff --git a/chrome/renderer/translate/translate_helper_browsertest.cc b/chrome/renderer/translate/translate_helper_browsertest.cc
index 7e512df9de594e6dcb2760949a9ffa8a3dba0e30..6ce59c3edcec9c6c480504754a6a0b4b26921423 100644
--- a/chrome/renderer/translate/translate_helper_browsertest.cc
+++ b/chrome/renderer/translate/translate_helper_browsertest.cc
@@ -61,12 +61,12 @@ class TranslateHelperBrowserTest : public ChromeRenderViewTest {
   TranslateHelperBrowserTest() : translate_helper_(NULL) {}
 
  protected:
-  virtual void SetUp() override {
+  void SetUp() override {
     ChromeRenderViewTest::SetUp();
     translate_helper_ = new TestTranslateHelper(view_);
   }
 
-  virtual void TearDown() override {
+  void TearDown() override {
     delete translate_helper_;
     ChromeRenderViewTest::TearDown();
   }