QuotaManager: Return the remaining free disk space as quota.

chrome/browser/extensions/mock_extension_special_storage_policy.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 "chrome/browser/extensions/mock_extension_special_storage_policy.h"
 
 MockExtensionSpecialStoragePolicy::MockExtensionSpecialStoragePolicy()
     : ExtensionSpecialStoragePolicy(NULL) {}
 
 bool MockExtensionSpecialStoragePolicy::IsStorageProtected(const GURL& origin) {
   return protected_.find(origin) != protected_.end();
 }
 
 bool MockExtensionSpecialStoragePolicy::IsStorageUnlimited(const GURL& origin) {
-  return unlimited_.find(origin) != unlimited_.end();
+  return false;
 }
 
 bool MockExtensionSpecialStoragePolicy::IsStorageSessionOnly(
     const GURL& origin) {
-  return session_only_.find(origin) != session_only_.end();
+  return false;
+}
+
+bool MockExtensionSpecialStoragePolicy::IsInstalledApp(const GURL& origin) {
+  return false;
 }
 
 bool MockExtensionSpecialStoragePolicy::IsFileHandler(
     const std::string& extension_id) {
-  return file_handlers_.find(extension_id) != file_handlers_.end();
+  return false;
 }
 
 bool MockExtensionSpecialStoragePolicy::HasSessionOnlyOrigins() {
-  return !session_only_.empty();
+  return false;
 }
 
 MockExtensionSpecialStoragePolicy::~MockExtensionSpecialStoragePolicy() {}