Standardize usage of virtual/override/final specifiers.

content/browser/renderer_host/input/touch_handle_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 "content/browser/renderer_host/input/touch_handle.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/events/test/motion_event_test_utils.h"
 #include "ui/gfx/geometry/rect_f.h"
 
@@ skipping 51 matching lines @@
 }  // namespace
 
 class TouchHandleTest : public testing::Test, public TouchHandleClient {
  public:
   TouchHandleTest()
       : dragging_(false),
         dragged_(false),
         tapped_(false),
         needs_animate_(false) {}
 
-  virtual ~TouchHandleTest() {}
+  ~TouchHandleTest() override {}
 
   // TouchHandleClient implementation.
   void OnHandleDragBegin(const TouchHandle& handle) override {
     dragging_ = true;
   }
 
   void OnHandleDragUpdate(const TouchHandle& handle,
                           const gfx::PointF& new_position) override {
     dragged_ = true;
     drag_position_ = new_position;
@@ skipping 399 matching lines @@
   event = MockMotionEvent(
       MockMotionEvent::ACTION_MOVE, event_time, kDefaultTapSlop * 2.f, 0);
   EXPECT_TRUE(handle.WillHandleTouchEvent(event));
   event = MockMotionEvent(
       MockMotionEvent::ACTION_UP, event_time, kDefaultTapSlop * 2.f, 0);
   EXPECT_TRUE(handle.WillHandleTouchEvent(event));
   EXPECT_FALSE(GetAndResetHandleTapped());
 }
 
 }  // namespace content