Cookie Store: Fix the SQLite store's compatible version.

The SQLite cookie store has been migrated to schema version 10. The
migration makes the store unusable by previous Chrome versions, so the
compatible version should also be bumped.

Change-Id: If430be6e925559b4e9ce119858df0f66f85ef833
Reviewed-on: https://chromium-review.googlesource.com/1008413Reviewed-by: Matt Menke <mmenke@chromium.org>
Commit-Queue: Victor Costan <pwnall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#550103}

net/extras/sqlite/sqlite_persistent_cookie_store.cc

@@ -430,7 +430,7 @@ namespace {
 // expire them in decreasing order of use when we've reached the maximum
 // number of cookies.
 const int kCurrentVersionNumber = 10;
-const int kCompatibleVersionNumber = 5;
+const int kCompatibleVersionNumber = 10;
 
 // Possible values for the 'priority' column.
 enum DBCookiePriority {