Standardize usage of virtual/override/final specifiers.

content/renderer/screen_orientation/screen_orientation_dispatcher_unittest.cc

Index: content/renderer/screen_orientation/screen_orientation_dispatcher_unittest.cc
diff --git a/content/renderer/screen_orientation/screen_orientation_dispatcher_unittest.cc b/content/renderer/screen_orientation/screen_orientation_dispatcher_unittest.cc
index fd9a73dd63a9c44f56e5c0678dcd4028ed761482..4d7714169aa84805cd3ea5da2c282c2dbeabb90d 100644
--- a/content/renderer/screen_orientation/screen_orientation_dispatcher_unittest.cc
+++ b/content/renderer/screen_orientation/screen_orientation_dispatcher_unittest.cc
@@ -66,7 +66,7 @@ class ScreenOrientationDispatcherWithSink : public ScreenOrientationDispatcher {
 
 class ScreenOrientationDispatcherTest : public testing::Test {
  protected:
-  virtual void SetUp() override {
+  void SetUp() override {
     dispatcher_.reset(new ScreenOrientationDispatcherWithSink(&sink_));
   }