unique_ptr_migration: clean up references to scoped_ptr as of r389721

ios/chrome/browser/memory/memory_debugger.mm

 // 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.
 
 #import "ios/chrome/browser/memory/memory_debugger.h"
 
 #include <stdint.h>
 
+#include <memory>
+
 #include "base/ios/ios_util.h"
 #import "base/mac/scoped_nsobject.h"
-#import "base/memory/scoped_ptr.h"
 #import "ios/chrome/browser/memory/memory_metrics.h"
 #include "ios/chrome/browser/ui/ui_util.h"
 #import "ios/chrome/browser/ui/uikit_ui_util.h"
 
 namespace {
 // The number of bytes in a megabyte.
 const CGFloat kNumBytesInMB = 1024 * 1024;
 // The horizontal and vertical padding between subviews.
 const CGFloat kPadding = 10;
 }  // namespace
@@ skipping 576 matching lines @@
   [alert addAction:[UIAlertAction actionWithTitle:@"OK"
                                             style:UIAlertActionStyleDefault
                                           handler:nil]];
   [[[[UIApplication sharedApplication] keyWindow] rootViewController]
       presentViewController:alert
                    animated:YES
                  completion:nil];
 }
 
 @end