Cleanup: Fix some misc issues in Linux media galleries MTP code.

chrome/browser/media_galleries/linux/mtp_device_object_enumerator.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/media_galleries/linux/mtp_device_object_enumerator.h"
 
 #include "base/logging.h"
 
 MTPDeviceObjectEnumerator::MTPDeviceObjectEnumerator(
     const std::vector<MtpFileEntry>& entries)
@@ skipping 27 matching lines @@
     return false;
   return file_entries_[index_].file_type() == MtpFileEntry::FILE_TYPE_FOLDER;
 }
 
 base::Time MTPDeviceObjectEnumerator::LastModifiedTime() {
   if (!IsIndexReadyAndInRange())
     return base::Time();
   return base::Time::FromTimeT(file_entries_[index_].modification_time());
 }
 
-bool MTPDeviceObjectEnumerator::GetEntryId(uint32_t* entry_id) const {
+bool MTPDeviceObjectEnumerator::GetEntryId(uint32* entry_id) const {
   DCHECK(entry_id);
   if (!IsIndexReadyAndInRange())
     return false;
 
   *entry_id = file_entries_[index_].item_id();
   return true;
 }
 
 bool MTPDeviceObjectEnumerator::HasMoreEntries() const {
   return index_ < file_entries_.size();
 }
 
 bool MTPDeviceObjectEnumerator::IsIndexReadyAndInRange() const {
   return is_index_ready_ && HasMoreEntries();
 }