Fixes a bug where QuotaPolicyChannelIDStore would ignore some deletes.

net/extras/sqlite/sqlite_channel_id_store.cc

Index: net/extras/sqlite/sqlite_channel_id_store.cc
diff --git a/net/extras/sqlite/sqlite_channel_id_store.cc b/net/extras/sqlite/sqlite_channel_id_store.cc
index d7edf9c170dd39710a5a46f45e71b2c6cd6e8fd3..db3c4b330ff6e6263b8aa11c4b8ea90ff07a1cfb 100644
--- a/net/extras/sqlite/sqlite_channel_id_store.cc
+++ b/net/extras/sqlite/sqlite_channel_id_store.cc
@@ -567,6 +567,9 @@ void SQLiteChannelIDStore::Backend::BackgroundDeleteAllInList(
   if (!db_.get())
     return;
 
+  // Force a commit of any pending writes before issuing deletes.
+  Commit();

[Ryan Sleevi, 2015/03/19 02:45:56]

It seems wasteful to Commit-and-Delete.

Would you be open to fixing it in a way that's performance friendly?

That is, prune all PendingOp Add/Deletes for the origin in question, without
actually committing them to the sqlite store?

+
   sql::Statement del_smt(db_->GetCachedStatement(
       SQL_FROM_HERE, "DELETE FROM origin_bound_certs WHERE origin=?"));
   if (!del_smt.is_valid()) {