[sql] Allow storing mmap status in a VIEW instead of meta table.

chrome/browser/extensions/activity_log/activity_database.cc

Index: chrome/browser/extensions/activity_log/activity_database.cc
diff --git a/chrome/browser/extensions/activity_log/activity_database.cc b/chrome/browser/extensions/activity_log/activity_database.cc
index 246e0e8b8d037b9c0aebb25ee89a3ef043a3fa19..2b4bc9b26646a640b2363986c4ec504d8b723037 100644
--- a/chrome/browser/extensions/activity_log/activity_database.cc
+++ b/chrome/browser/extensions/activity_log/activity_database.cc
@@ -67,9 +67,8 @@ void ActivityDatabase::Init(const base::FilePath& db_name) {
   db_.set_page_size(4096);
   db_.set_cache_size(32);
 
-  // TODO(shess): The current mitigation for http://crbug.com/537742 stores
-  // state in the meta table, which this database does not use.
-  db_.set_mmap_disabled();
+  // This db does not use [meta] table, store mmap status data elsewhere.
+  db_.set_mmap_alt_status();
 
   if (!db_.Open(db_name)) {
     LOG(ERROR) << db_.GetErrorMessage();