Recreate the DB and metatable before we try to reinitialise

Fixes a DCHECK crash where the MetaTable has already
been created and we try to reuse it for the new DB.

Change-Id: Ib1b0a96ae4a65fa606872cb10ad3f5183ee02558
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2357750Reviewed-by: Trent Apted <tapted@chromium.org>
Commit-Queue: Becca Hughes <beccahughes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#798363}

chrome/browser/media/history/media_history_store.cc

@@ -315,8 +315,8 @@ void MediaHistoryStore::Initialize(const bool should_reset) {
   // In some edge cases the DB might be corrupted and unrecoverable so we should
   // delete the database and recreate it.
   if (result != InitResult::kSuccess) {
-    if (db_->is_open())
-      db_->Close();
+    db_ = std::make_unique<sql::Database>();
+    meta_table_ = std::make_unique<sql::MetaTable>();
 
     sql::Database::Delete(db_path_);