Disable the managed storage API behind a flag for M22.

chrome/common/chrome_switches.h

 // 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.
 
 // Defines all the command-line switches used by Chrome.
 
 #ifndef CHROME_COMMON_CHROME_SWITCHES_H_
 #define CHROME_COMMON_CHROME_SWITCHES_H_
 
 #include "build/build_config.h"
@@ skipping 140 matching lines @@
 extern const char kEnableExtensionActivityUI[];
 extern const char kEnableExtensionTimelineApi[];
 extern const char kEnableFramelessConstrainedDialogs[];
 extern const char kEnableFileCookies[];
 extern const char kEnableHighDPIPDFPlugin[];
 extern const char kEnableHttpPipelining[];
 extern const char kEnableInstantExtendedAPI[];
 extern const char kEnableIPv6[];
 extern const char kEnableIPCFuzzing[];
 extern const char kEnableIPPooling[];
+extern const char kEnableManagedStorage[];
 extern const char kEnableMediaGalleryUI[];
 extern const char kEnableMemoryInfo[];
 extern const char kEnableNaCl[];
 extern const char kEnableNaClDebug[];
 extern const char kEnableNaClExceptionHandling[];
 extern const char kEnableNaClIPCProxy[];
 extern const char kEnableNpn[];
 extern const char kDisableSyncTabs[];
 extern const char kEnableNpnHttpOnly[];
 extern const char kEnableOriginBoundCerts[];
@@ skipping 265 matching lines @@
 #else
 extern const char kEnablePrintPreview[];
 #endif
 
 // DON'T ADD RANDOM STUFF HERE. Put it in the main section above in
 // alphabetical order, or in one of the ifdefs (also in order in each section).
 
 }  // namespace switches
 
 #endif  // CHROME_COMMON_CHROME_SWITCHES_H_