Standardize usage of virtual/override/final specifiers.

ui/events/gestures/gesture_provider_aura_unittest.cc

Index: ui/events/gestures/gesture_provider_aura_unittest.cc
diff --git a/ui/events/gestures/gesture_provider_aura_unittest.cc b/ui/events/gestures/gesture_provider_aura_unittest.cc
index 11cc3ca5642f69f3db59bea7d05869f0b7c047f8..0ce3de59ffb1bb53022c9381dcafca4157276e2f 100644
--- a/ui/events/gestures/gesture_provider_aura_unittest.cc
+++ b/ui/events/gestures/gesture_provider_aura_unittest.cc
@@ -15,15 +15,13 @@ class GestureProviderAuraTest : public testing::Test,
  public:
   GestureProviderAuraTest() {}
 
-  virtual ~GestureProviderAuraTest() {}
+  ~GestureProviderAuraTest() override {}
 
-  virtual void OnGestureEvent(GestureEvent* event) override {}
+  void OnGestureEvent(GestureEvent* event) override {}
 
-  virtual void SetUp() override {
-    provider_.reset(new GestureProviderAura(this));
-  }
+  void SetUp() override { provider_.reset(new GestureProviderAura(this)); }
 
-  virtual void TearDown() override { provider_.reset(); }
+  void TearDown() override { provider_.reset(); }
 
   GestureProviderAura* provider() { return provider_.get(); }