Move PathExists to base namespace.

chrome/browser/component_updater/component_unpacker.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/component_updater/component_unpacker.h"
 
 #include <string>
 #include <vector>
 
 #include "base/file_util.h"
@@ skipping 74 matching lines @@
   std::vector<uint8> public_key_;
 };
 
 // Deserialize the CRX manifest. The top level must be a dictionary.
 // TODO(cpu): add a specific attribute check to a component json that the
 // extension unpacker will reject, so that a component cannot be installed
 // as an extension.
 base::DictionaryValue* ReadManifest(const base::FilePath& unpack_path) {
   base::FilePath manifest =
       unpack_path.Append(FILE_PATH_LITERAL("manifest.json"));
-  if (!file_util::PathExists(manifest))
+  if (!base::PathExists(manifest))
     return NULL;
   JSONFileValueSerializer serializer(manifest);
   std::string error;
   scoped_ptr<base::Value> root(serializer.Deserialize(NULL, &error));
   if (!root.get())
     return NULL;
   if (!root->IsType(base::Value::TYPE_DICTIONARY))
     return NULL;
   return static_cast<base::DictionaryValue*>(root.release());
 }
 
 // Deletes a path if it exists, and then creates a directory there.
 // Returns true if and only if these operations were successful.
 // This method doesn't take any special steps to prevent files from
 // being inserted into the target directory by another process or thread.
 bool MakeEmptyDirectory(const base::FilePath& path) {
-  if (file_util::PathExists(path)) {
+  if (base::PathExists(path)) {
     if (!base::Delete(path, true))
       return false;
   }
   if (!file_util::CreateDirectory(path))
     return false;
   return true;
 }
 
 }  // namespace.
 
@@ skipping 95 matching lines @@
     return;
   }
   // Installation successful. The directory is not our concern now.
   unpack_path_.clear();
 }
 
 ComponentUnpacker::~ComponentUnpacker() {
   if (!unpack_path_.empty())
     base::Delete(unpack_path_, true);
 }