[ew] Add basic classes.

webkit/browser/fileapi/plugin_private_file_system_backend.h

Index: webkit/browser/fileapi/plugin_private_file_system_backend.h
diff --git a/webkit/browser/fileapi/plugin_private_file_system_backend.h b/webkit/browser/fileapi/plugin_private_file_system_backend.h
index 9ebc4716e50eba0e331479702b2eb15cd2d63132..bd95bc9de7930b7de384df8bd07acc82311456e0 100644
--- a/webkit/browser/fileapi/plugin_private_file_system_backend.h
+++ b/webkit/browser/fileapi/plugin_private_file_system_backend.h
@@ -29,6 +29,7 @@ class SpecialStoragePolicy;
 namespace storage {
 
 class ObfuscatedFileUtil;
+class WatcherManager;
 
 class STORAGE_EXPORT PluginPrivateFileSystemBackend
     : public FileSystemBackend,
@@ -65,6 +66,7 @@ class STORAGE_EXPORT PluginPrivateFileSystemBackend
                           OpenFileSystemMode mode,
                           const OpenFileSystemCallback& callback) OVERRIDE;
   virtual AsyncFileUtil* GetAsyncFileUtil(FileSystemType type) OVERRIDE;
+  virtual WatcherManager* GetWatcherManager(FileSystemType type) OVERRIDE;
   virtual CopyOrMoveFileValidatorFactory* GetCopyOrMoveFileValidatorFactory(
       FileSystemType type,
       base::File::Error* error_code) OVERRIDE;