[fsp] Introduce file_system_provider::Service class for the FileSystemProvider API.

webkit/common/fileapi/file_system_util.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/common/fileapi/file_system_util.h"
 
 #include <algorithm>
 
 #include "base/files/file_path.h"
 #include "base/logging.h"
@@ skipping 299 matching lines @@
     case kFileSystemTypeSyncableForInternalSync:
       return "Syncable";
     case kFileSystemTypeNativeForPlatformApp:
       return "NativeForPlatformApp";
     case kFileSystemTypeForTransientFile:
       return "TransientFile";
     case kFileSystemTypePluginPrivate:
       return "PluginPrivate";
     case kFileSystemTypeCloudDevice:
       return "CloudDevice";
+    case kFileSystemTypeProvided:
+      return "Provided";
     case kFileSystemInternalTypeEnumStart:
     case kFileSystemInternalTypeEnumEnd:
       NOTREACHED();
       // Fall through.
     case kFileSystemTypeUnknown:
       return "Unknown";
   }
   NOTREACHED();
   return std::string();
 }
@@ skipping 169 matching lines @@
       return base::File::FILE_ERROR_ABORT;
     case net::ERR_ADDRESS_INVALID:
     case net::ERR_INVALID_URL:
       return base::File::FILE_ERROR_INVALID_URL;
     default:
       return base::File::FILE_ERROR_FAILED;
   }
 }
 
 }  // namespace fileapi