Move PathExists to base namespace.

chrome/browser/chromeos/extensions/default_app_order_unittest.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/extensions/default_app_order.h"
 
 #include <string>
 #include <vector>
 
 #include "base/file_util.h"
@@ skipping 82 matching lines @@
   EXPECT_EQ(std::string("app3"), apps[2]);
 }
 
 // Tests none-existent order file gives built-in default.
 TEST_F(DefaultAppOrderTest, NoExternalFile) {
   base::ScopedTempDir scoped_tmp_dir;
   ASSERT_TRUE(scoped_tmp_dir.CreateUniqueTempDir());
 
   base::FilePath none_existent_file =
       scoped_tmp_dir.path().AppendASCII("none_existent_file");
-  ASSERT_FALSE(file_util::PathExists(none_existent_file));
+  ASSERT_FALSE(base::PathExists(none_existent_file));
   SetExternalFile(none_existent_file);
 
   scoped_ptr<default_app_order::ExternalLoader> loader(
       new default_app_order::ExternalLoader(false));
 
   std::vector<std::string> apps;
   default_app_order::Get(&apps);
   EXPECT_TRUE(IsBuiltInDefault(apps));
 }
 
 // Tests bad json file gives built-in default.
 TEST_F(DefaultAppOrderTest, BadExternalFile) {
   const char kExternalOrder[] = "This is not a valid json.";
   CreateExternalOrderFile(std::string(kExternalOrder));
 
   scoped_ptr<default_app_order::ExternalLoader> loader(
       new default_app_order::ExternalLoader(false));
 
   std::vector<std::string> apps;
   default_app_order::Get(&apps);
   EXPECT_TRUE(IsBuiltInDefault(apps));
 }
 
 }  // namespace chromeos