[sync] Enable sync credential caching by default for post-M22 builds

chrome/common/chrome_switches.cc

Index: chrome/common/chrome_switches.cc
diff --git a/chrome/common/chrome_switches.cc b/chrome/common/chrome_switches.cc
index cb126f1dd7344b01aa26023ac41540ebabec213f..01af621d22ca305ea2984e04a994739bc83875ac 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -1513,9 +1513,9 @@ const char kUseMockKeychain[]               = "use-mock-keychain";
 // modification or removal.
 const char kDisableDesktopShortcuts[]       = "disable-desktop-shortcuts";
 
-// Enables sync credential caching on Windows 8.
+// Disables sync credential caching on Windows 8.
 // See chrome/browser/sync/credential_cache_service_win.h.
-const char kEnableSyncCredentialCaching[]    = "enable-sync-credential-caching";
+const char kDisableSyncCredentialCaching[]  = "disable-sync-credential-caching";
 
 // For the DelegateExecute verb handler to launch Chrome in metro mode on
 // Windows 8 and higher.  Used when relaunching metro Chrome.