Fix macos build

src/core/scoped_nsautorelease_pool.mm

@@ -1,24 +0,0 @@
-// Copyright (c) 2010 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 "scoped_nsautorelease_pool.h"
-
-#import <Foundation/Foundation.h>
-
-ScopedNSAutoreleasePool::ScopedNSAutoreleasePool()
-    : autorelease_pool_([[NSAutoreleasePool alloc] init]) {
-  Q_ASSERT(autorelease_pool_);
-}
-
-ScopedNSAutoreleasePool::~ScopedNSAutoreleasePool() {
-  [autorelease_pool_ drain];
-}
-
-// Cycle the internal pool, allowing everything there to get cleaned up and
-// start anew.
-void ScopedNSAutoreleasePool::Recycle() {
-  [autorelease_pool_ drain];
-  autorelease_pool_ = [[NSAutoreleasePool alloc] init];
-  Q_ASSERT(autorelease_pool_);
-}