Migrates legacy packaged app data when it's upgraded to a platform app

storage/browser/fileapi/obfuscated_file_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 "storage/browser/fileapi/obfuscated_file_util.h"
 
 #include <queue>
 #include <string>
 #include <vector>
 
@@ skipping 886 matching lines @@
   if (origin_database_) {
     origin_database_->RemovePathForOrigin(
         storage::GetIdentifierFromOrigin(origin));
   }
   if (!base::DeleteFile(origin_path, true /* recursive */))
     return false;
 
   return true;
 }
 
+void ObfuscatedFileUtil::CloseFileSystemForOriginAndType(
+    const GURL& origin,
+    const std::string& type_string) {
+  std::string key = GetDirectoryDatabaseKey(origin, type_string);
+  if (key.empty())
+    return;
+  DirectoryMap::iterator iter = directories_.find(key);
+  if (iter == directories_.end())
+    return;
+  scoped_ptr<SandboxDirectoryDatabase> database(iter->second);
+  directories_.erase(iter);
+}
+
 ObfuscatedFileUtil::AbstractOriginEnumerator*
 ObfuscatedFileUtil::CreateOriginEnumerator() {
   std::vector<SandboxOriginDatabase::OriginRecord> origins;
 
   InitOriginDatabase(GURL(), false);
   return new ObfuscatedOriginEnumerator(
       origin_database_.get(), file_system_directory_);
 }
 
 bool ObfuscatedFileUtil::DestroyDirectoryDatabase(
@@ skipping 489 matching lines @@
   }
   return file.Pass();
 }
 
 bool ObfuscatedFileUtil::HasIsolatedStorage(const GURL& origin) {
   return special_storage_policy_.get() &&
       special_storage_policy_->HasIsolatedStorage(origin);
 }
 
 }  // namespace storage