Use a direct include of strings headers in chrome/browser/chromeos/.

chrome/browser/chromeos/drive/resource_metadata.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/chromeos/drive/resource_metadata.h"
 
-#include "base/stringprintf.h"
 #include "base/strings/string_number_conversions.h"
+#include "base/strings/stringprintf.h"
 #include "base/sys_info.h"
 #include "chrome/browser/chromeos/drive/drive.pb.h"
 #include "chrome/browser/chromeos/drive/file_system_util.h"
 #include "chrome/browser/chromeos/drive/resource_metadata_storage.h"
 #include "content/public/browser/browser_thread.h"
 
 using content::BrowserThread;
 
 namespace drive {
 namespace {
@@ skipping 812 matching lines @@
     for (size_t i = 0; i < children.size(); ++i) {
       if (!RemoveEntryRecursively(children[i]))
         return false;
     }
   }
   return storage_->RemoveEntry(resource_id);
 }
 
 }  // namespace internal
 }  // namespace drive