Move PathExists to base namespace.

chrome/common/extensions/manifest_tests/extension_manifest_test.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/common/extensions/manifest_tests/extension_manifest_test.h"
 
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/json/json_file_value_serializer.h"
 #include "base/path_service.h"
@@ skipping 10 matching lines @@
 // the appropriate test directory.
 base::DictionaryValue* LoadManifestFile(const base::FilePath& filename_path,
                                         std::string* error) {
   base::FilePath extension_path;
   base::FilePath manifest_path;
 
   PathService::Get(chrome::DIR_TEST_DATA, &manifest_path);
   manifest_path = manifest_path.Append(filename_path);
   extension_path = manifest_path.DirName();
 
-  EXPECT_TRUE(file_util::PathExists(manifest_path)) <<
+  EXPECT_TRUE(base::PathExists(manifest_path)) <<
       "Couldn't find " << manifest_path.value();
 
   JSONFileValueSerializer serializer(manifest_path);
   base::DictionaryValue* manifest =
       static_cast<base::DictionaryValue*>(serializer.Deserialize(NULL, error));
 
   // Most unit tests don't need localization, and they'll fail if we try to
   // localize them, since their manifests don't have a default_locale key.
   // Only localize manifests that indicate they want to be localized.
   // Calling LocalizeExtension at this point mirrors
@@ skipping 208 matching lines @@
                            testcase.location_,
                            testcase.flags_);
       break;
     case EXPECT_TYPE_SUCCESS:
       LoadAndExpectSuccess(testcase.manifest_filename_.c_str(),
                            testcase.location_,
                            testcase.flags_);
       break;
    }
 }