Standardize usage of virtual/override/final specifiers.

content/browser/renderer_host/input/touch_action_browsertest.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 "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/run_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/browser/renderer_host/input/synthetic_gesture.h"
@@ skipping 53 matching lines @@
     "</script>";
 
 }  // namespace
 
 namespace content {
 
 
 class TouchActionBrowserTest : public ContentBrowserTest {
  public:
   TouchActionBrowserTest() {}
-  virtual ~TouchActionBrowserTest() {}
+  ~TouchActionBrowserTest() override {}
 
   RenderWidgetHostImpl* GetWidgetHost() {
     return RenderWidgetHostImpl::From(shell()->web_contents()->
                                           GetRenderViewHost());
   }
 
   void OnSyntheticGestureCompleted(SyntheticGesture::Result result) {
     EXPECT_EQ(SyntheticGesture::GESTURE_FINISHED, result);
     runner_->Quit();
   }
@@ skipping 114 matching lines @@
   bool scrolled = DoTouchScroll(gfx::Point(50, 150), gfx::Vector2d(0, 45));
   EXPECT_FALSE(scrolled);
 
   EXPECT_EQ(1, ExecuteScriptAndExtractInt("eventCounts.touchstart"));
   EXPECT_GT(ExecuteScriptAndExtractInt("eventCounts.touchmove"), 1);
   EXPECT_EQ(1, ExecuteScriptAndExtractInt("eventCounts.touchend"));
   EXPECT_EQ(0, ExecuteScriptAndExtractInt("eventCounts.touchcancel"));
 }
 
 }  // namespace content