Standardize usage of virtual/override/final in content/browser/

content/browser/frame_host/render_widget_host_view_guest_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/frame_host/render_widget_host_view_guest.h"
 
 #include "base/basictypes.h"
 #include "base/message_loop/message_loop.h"
 #include "content/browser/renderer_host/render_widget_host_delegate.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/common/view_messages.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "content/public/test/mock_render_process_host.h"
 #include "content/public/test/test_browser_context.h"
 #include "content/test/test_render_view_host.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace content {
 namespace {
 class MockRenderWidgetHostDelegate : public RenderWidgetHostDelegate {
  public:
   MockRenderWidgetHostDelegate() {}
-  virtual ~MockRenderWidgetHostDelegate() {}
+  ~MockRenderWidgetHostDelegate() override {}
 };
 
 class RenderWidgetHostViewGuestTest : public testing::Test {
  public:
   RenderWidgetHostViewGuestTest() {}
 
   virtual void SetUp() {
     browser_context_.reset(new TestBrowserContext);
     MockRenderProcessHost* process_host =
         new MockRenderProcessHost(browser_context_.get());
@@ skipping 39 matching lines @@
   ASSERT_FALSE(view_->IsShowing());
 
   view_->WasShown();
   ASSERT_TRUE(view_->IsShowing());
 
   view_->WasHidden();
   ASSERT_FALSE(view_->IsShowing());
 }
 
 }  // namespace content