Fix a bunch of IWYU violators that don't include scoped_ptr.h

mojo/shell/public/cpp/initialize_base_and_icu.cc

 // Copyright 2015 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.
 
 // This file declares a raw symbol and should be included only once in a
 // certain binary target. This needs to be run before we raise the sandbox,
 // which means that it can't use mojo. Our runners will dig around in the
 // symbol table and run this before the mojo system is initialized.
 
 #include <stdint.h>
 
 #include "base/files/file.h"
 #include "base/i18n/icu_util.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/rand_util.h"
 #include "base/sys_info.h"
 #include "mojo/public/c/system/types.h"
 
 #if !defined(OS_ANDROID)
 #include "third_party/icu/source/i18n/unicode/timezone.h"
 #endif
 
 extern "C" {
 #if defined(WIN32)
@@ skipping 17 matching lines @@
 
 #if !defined(OS_ANDROID)
   // ICU DateFormat class (used in base/time_format.cc) needs to get the
   // Olson timezone ID by accessing the zoneinfo files on disk. After
   // TimeZone::createDefault is called once here, the timezone ID is
   // cached and there's no more need to access the file system.
   scoped_ptr<icu::TimeZone> zone(icu::TimeZone::createDefault());
 #endif
 }
 }