Standardize usage of virtual/override/final specifiers.

content/browser/renderer_host/input/touch_emulator_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/time/time.h"
@@ skipping 25 matching lines @@
       : shift_pressed_(false),
         mouse_pressed_(false),
         ack_touches_synchronously_(true),
         last_mouse_x_(-1),
         last_mouse_y_(-1) {
     last_event_time_seconds_ =
         (base::TimeTicks::Now() - base::TimeTicks()).InSecondsF();
     event_time_delta_seconds_ = 0.1;
   }
 
-  virtual ~TouchEmulatorTest() {}
+  ~TouchEmulatorTest() override {}
 
   // testing::Test
-  virtual void SetUp() override {
+  void SetUp() override {
 #if defined(USE_AURA)
     aura::Env::CreateInstance(true);
     screen_.reset(aura::TestScreen::Create(gfx::Size()));
     gfx::Screen::SetScreenInstance(gfx::SCREEN_TYPE_NATIVE, screen_.get());
 #endif
 
     emulator_.reset(new TouchEmulator(this));
     emulator_->Enable();
   }
 
-  virtual void TearDown() override {
+  void TearDown() override {
     emulator_->Disable();
     EXPECT_EQ("", ExpectedEvents());
 
 #if defined(USE_AURA)
     aura::Env::DeleteInstance();
     screen_.reset();
 #endif
   }
 
   void ForwardGestureEvent(const blink::WebGestureEvent& event) override {
@@ skipping 443 matching lines @@
   MouseDown(100, 200);
   EXPECT_EQ("TouchStart GestureTapDown", ExpectedEvents());
   MouseUp(200, 200);
   EXPECT_EQ(
       "TouchMove GestureTapCancel GestureScrollBegin GestureScrollUpdate"
       " TouchEnd GestureScrollEnd",
       ExpectedEvents());
 }
 
 }  // namespace content