Update from https://crrev.com/311076

base/mac/scoped_sending_event_unittest.mm

 // Copyright (c) 2011 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.
 
 #import "base/mac/scoped_sending_event.h"
 
 #import <Foundation/Foundation.h>
 
 #include "base/mac/scoped_nsobject.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 @interface ScopedSendingEventTestCrApp : NSObject <CrAppControlProtocol> {
  @private
   BOOL handlingSendEvent_;
 }
 @property(nonatomic, assign, getter=isHandlingSendEvent) BOOL handlingSendEvent;
 @end
 
 @implementation ScopedSendingEventTestCrApp
 @synthesize handlingSendEvent = handlingSendEvent_;
 @end
 
 namespace {
 
 class ScopedSendingEventTest : public testing::Test {
  public:
   ScopedSendingEventTest() : app_([[ScopedSendingEventTestCrApp alloc] init]) {
     NSApp = app_.get();
   }
-  virtual ~ScopedSendingEventTest() {
-    NSApp = nil;
-  }
+  ~ScopedSendingEventTest() override { NSApp = nil; }
 
  private:
   base::scoped_nsobject<ScopedSendingEventTestCrApp> app_;
 };
 
 // Sets the flag within scope, resets when leaving scope.
 TEST_F(ScopedSendingEventTest, SetHandlingSendEvent) {
   id<CrAppProtocol> app = NSApp;
   EXPECT_FALSE([app isHandlingSendEvent]);
   {
@@ skipping 13 matching lines @@
     {
       base::mac::ScopedSendingEvent nested_is_handling_send_event;
       EXPECT_TRUE([app isHandlingSendEvent]);
     }
     EXPECT_TRUE([app isHandlingSendEvent]);
   }
   EXPECT_FALSE([app isHandlingSendEvent]);
 }
 
 }  // namespace