Move PathExists to base namespace.

chrome/browser/chromeos/drive/file_system_util.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/file_system_util.h"
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
@@ skipping 104 matching lines @@
 }
 
 // Moves all files under |directory_from| to |directory_to|.
 void MoveAllFilesFromDirectory(const base::FilePath& directory_from,
                                const base::FilePath& directory_to) {
   base::FileEnumerator enumerator(directory_from, false,  // not recursive
                                   base::FileEnumerator::FILES);
   for (base::FilePath file_from = enumerator.Next(); !file_from.empty();
        file_from = enumerator.Next()) {
     const base::FilePath file_to = directory_to.Append(file_from.BaseName());
-    if (!file_util::PathExists(file_to))  // Do not overwrite existing files.
+    if (!base::PathExists(file_to))  // Do not overwrite existing files.
       base::Move(file_from, file_to);
   }
 }
 
 }  // namespace
 
 const base::FilePath& GetDriveGrandRootPath() {
   CR_DEFINE_STATIC_LOCAL(base::FilePath, grand_root_path,
       (util::kDriveGrandRootDirName));
   return grand_root_path;
@@ skipping 172 matching lines @@
   ReplaceChars(output, kSlash, std::string(kEscapedSlash), &output);
   return output;
 }
 
 void MigrateCacheFilesFromOldDirectories(
     const base::FilePath& cache_root_directory) {
   const base::FilePath persistent_directory =
       cache_root_directory.AppendASCII("persistent");
   const base::FilePath tmp_directory =
       cache_root_directory.AppendASCII("tmp");
-  if (!file_util::PathExists(persistent_directory))
+  if (!base::PathExists(persistent_directory))
     return;
 
   const base::FilePath cache_file_directory =
       cache_root_directory.Append(kCacheFileDirectory);
 
   // Move all files inside "persistent" to "files".
   MoveAllFilesFromDirectory(persistent_directory, cache_file_directory);
   base::Delete(persistent_directory,  true /* recursive */);
 
   // Move all files inside "tmp" to "files".
@@ skipping 141 matching lines @@
     base::MD5Update(&context, base::StringPiece(buffer.get(), result));
   }
 
   base::MD5Digest digest;
   base::MD5Final(&digest, &context);
   return MD5DigestToBase16(digest);
 }
 
 }  // namespace util
 }  // namespace drive