Add RegisterMountPointProvider and TestMountPointProvider for testing

webkit/chromeos/fileapi/cros_mount_point_provider.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 "webkit/chromeos/fileapi/cros_mount_point_provider.h"
 
 #include "base/chromeos/chromeos_version.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
@@ skipping 113 matching lines @@
 
   return file_access_permissions_->HasAccessPermission(extension_id,
                                                        virtual_path);
 }
 
 // TODO(zelidrag): Share this code with SandboxMountPointProvider impl.
 bool CrosMountPointProvider::IsRestrictedFileName(const FilePath& path) const {
   return false;
 }
 
+fileapi::FileSystemQuotaUtil* CrosMountPointProvider::GetQuotaUtil() {
+  // No quota support.
+  return NULL;
+}
+
 bool CrosMountPointProvider::HasMountPoint(const FilePath& mount_point) {
   base::AutoLock locker(mount_point_map_lock_);
   MountPointMap::const_iterator iter = mount_point_map_.find(
       mount_point.BaseName().value());
   DCHECK(iter == mount_point_map_.end() ||
          iter->second.local_root_path == mount_point.DirName());
   return iter != mount_point_map_.end();
 }
 
 void CrosMountPointProvider::AddLocalMountPoint(const FilePath& mount_point) {
@@ skipping 127 matching lines @@
     if (mount_prefix == filesystem_path) {
       return true;
     } else if (mount_prefix.AppendRelativePath(filesystem_path, virtual_path)) {
       return true;
     }
   }
   return false;
 }
 
 }  // namespace chromeos