Add missing #include around sequenced_worker_pool.h in //chrome

chrome/browser/memory_details_linux.cc

 // Copyright (c) 2012 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 "chrome/browser/memory_details.h"
 
 #include <stddef.h>
 #include <sys/types.h>
 #include <unistd.h>
 
 #include <map>
 #include <memory>
 #include <set>
 
 #include "base/bind.h"
 #include "base/files/file_util.h"
 #include "base/process/process_iterator.h"
 #include "base/process/process_metrics.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/threading/sequenced_worker_pool.h"
 #include "build/build_config.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/grit/chromium_strings.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/common/process_type.h"
 #include "ui/base/l10n/l10n_util.h"
 
 using base::ProcessEntry;
 using content::BrowserThread;
 
@@ skipping 106 matching lines @@
 
 #if defined(OS_CHROMEOS)
   base::GetSwapInfo(&swap_info_);
 #endif
 
   // Finally return to the browser thread.
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(&MemoryDetails::CollectChildInfoOnUIThread, this));
 }