Remove ClosePlatformFile from media galleries.

chrome/utility/media_galleries/iapps_xml_utils.h

 // Copyright 2013 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.
 
 #ifndef CHROME_UTILITY_MEDIA_GALLERIES_IAPPS_XML_UTILS_H_
 #define CHROME_UTILITY_MEDIA_GALLERIES_IAPPS_XML_UTILS_H_
 
 #include <string>
 
-#include "base/platform_file.h"
+#include "base/files/file.h"
 
 class XmlReader;
 
 namespace iapps {
 
 // Like XmlReader::SkipToElement, but will advance to the next open tag if the
 // cursor is on a close tag.
 bool SkipToNextElement(XmlReader* reader);
 
 // Traverse |reader| looking for a node named |name| at the current depth
 // of |reader|.
 bool SeekToNodeAtCurrentDepth(XmlReader* reader, const std::string& name);
 
 // Search within a "dict" node for |key|. The cursor must be on the starting
 // "dict" node when entering this function.
 bool SeekInDict(XmlReader* reader, const std::string& key);
 
 // Get the value out of a string node.
 bool ReadString(XmlReader* reader, std::string* result);
 
 // Get the value out of an integer node.
 bool ReadInteger(XmlReader* reader, uint64* result);
 
 // Read in the contents of the given library xml |file| and return as a string.
-std::string ReadPlatformFileAsString(const base::PlatformFile file);
+std::string ReadFileAsString(base::File file);
 
 }  // namespace iapps
 
 #endif  // CHROME_UTILITY_MEDIA_GALLERIES_IAPPS_XML_UTILS_H_