[ew] Add basic classes.

webkit/browser/fileapi/plugin_private_file_system_backend.cc

 // Copyright 2013 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/browser/fileapi/plugin_private_file_system_backend.h"
 
 #include <map>
 
 #include "base/stl_util.h"
 #include "base/synchronization/lock.h"
@@ skipping 142 matching lines @@
       FROM_HERE,
       base::Bind(callback, GURL(), std::string(),
                  base::File::FILE_ERROR_SECURITY));
 }
 
 AsyncFileUtil*
 PluginPrivateFileSystemBackend::GetAsyncFileUtil(FileSystemType type) {
   return file_util_.get();
 }
 
+WatcherManager* PluginPrivateFileSystemBackend::GetWatcherManager(
+    FileSystemType type) {
+  return NULL;
+}
+
 CopyOrMoveFileValidatorFactory*
 PluginPrivateFileSystemBackend::GetCopyOrMoveFileValidatorFactory(
     FileSystemType type,
     base::File::Error* error_code) {
   DCHECK(error_code);
   *error_code = base::File::FILE_OK;
   return NULL;
 }
 
 FileSystemOperation* PluginPrivateFileSystemBackend::CreateFileSystemOperation(
@@ skipping 124 matching lines @@
     FileSystemType type) const {
   return NULL;
 }
 
 ObfuscatedFileUtil* PluginPrivateFileSystemBackend::obfuscated_file_util() {
   return static_cast<ObfuscatedFileUtil*>(
       static_cast<AsyncFileUtilAdapter*>(file_util_.get())->sync_file_util());
 }
 
 }  // namespace storage