Move path functions from file_util to FilePath object.

chrome/common/extensions/extension_file_util.cc

 // Copyright (c) 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.
 
 #include "chrome/common/extensions/extension_file_util.h"
 
 #include <map>
 #include <vector>
 
 #include "base/file_util.h"
@@ skipping 474 matching lines @@
   std::string host = net::UnescapeURLComponent(url.host(),
       net::UnescapeRule::SPACES | net::UnescapeRule::URL_SPECIAL_CHARS);
   if (host.empty())
     return base::FilePath();
 
   base::FilePath relative_path = ExtensionURLToRelativeFilePath(url);
   if (relative_path.empty())
     return base::FilePath();
 
   base::FilePath path = root.AppendASCII(host).Append(relative_path);
-  if (!file_util::PathExists(path) ||
-      !file_util::AbsolutePath(&path) ||
-      !root.IsParent(path)) {
+  if (!file_util::PathExists(path))
     return base::FilePath();
-  }
+  path = base::MakeAbsoluteFilePath(path);
+  if (path.empty() || !root.IsParent(path))
+    return base::FilePath();
   return path;
 }
 
 base::FilePath GetInstallTempDir(const base::FilePath& extensions_dir) {
   // We do file IO in this function, but only when the current profile's
   // Temp directory has never been used before, or in a rare error case.
   // Developers are not likely to see these situations often, so do an
   // explicit thread check.
   base::ThreadRestrictions::AssertIOAllowed();
 
@@ skipping 20 matching lines @@
     return base::FilePath();
   }
   return temp_path;
 }
 
 void DeleteFile(const base::FilePath& path, bool recursive) {
   file_util::Delete(path, recursive);
 }
 
 }  // namespace extension_file_util