Move PathExists to base namespace.

chrome/browser/sync/test/integration/sync_extension_helper.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/sync/test/integration/sync_extension_helper.h"
 
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/values.h"
@@ skipping 287 matching lines @@
       source.Set(extension_manifest_keys::kPlatformAppBackgroundScripts,
                  scripts);
       break;
     }
     default:
       ADD_FAILURE();
       return NULL;
   }
   const base::FilePath sub_dir = base::FilePath().AppendASCII(name);
   base::FilePath extension_dir;
-  if (!file_util::PathExists(base_dir) &&
+  if (!base::PathExists(base_dir) &&
       !file_util::CreateDirectory(base_dir)) {
     ADD_FAILURE();
     return NULL;
   }
   if (!file_util::CreateTemporaryDirInDir(
           base_dir, sub_dir.value(), &extension_dir)) {
     ADD_FAILURE();
     return NULL;
   }
   std::string error;
@@ skipping 49 matching lines @@
     EXPECT_EQ(expected_id, extension->id());
     return NULL;
   }
   DVLOG(2) << "created extension with name = "
            << name << ", id = " << expected_id;
   (it->second)[name] = extension;
   id_to_name_[expected_id] = name;
   id_to_type_[expected_id] = type;
   return extension;
 }