This patch adds a new IPDL protocol PBackgroundLocalStorageCache. It is used by LocalStorageCache object to broadcast changes in local storage cache to other content processes. Each origin has its own PBackgroundLocalStorageCache, so now we can notify content processes that actually have a local storage cache for given origin. This greatly improves performance and reduces memory footprint especialy when local storage changes carry big strings and/or happen very quickly (before this patch all child processes were blindly notified).
XPCOM's string API doesn't have the notion of a "null string". But it does have
the notion of a "void string" (or "voided string"), and that's what these
functions are returning. So the names should reflect that.
--HG--
extra : rebase_source : 4e3f982e0873877174a08a25413595ff66f7d20e
All the instances are converted as follows.
- nsSubstring --> nsAString
- nsCSubstring --> nsACString
--HG--
extra : rebase_source : cfd2238c52e3cb4d13e3bd5ddb80ba6584ab6d91
Jan Varga
Jonathan Watt
Nicholas Nethercote
Andrea Marchesini