IndexedDB: Ignore open/delete requests from terminated renderers.

content/browser/indexed_db/indexed_db_database.cc

Index: content/browser/indexed_db/indexed_db_database.cc
diff --git a/content/browser/indexed_db/indexed_db_database.cc b/content/browser/indexed_db/indexed_db_database.cc
index c25f47e32d7f26dc9a0ca196482eaeb4075f5369..10821c3c0b8c2f084a0a318e0468bdc57548cff8 100644
--- a/content/browser/indexed_db/indexed_db_database.cc
+++ b/content/browser/indexed_db/indexed_db_database.cc
@@ -118,6 +118,11 @@ class IndexedDBDatabase::OpenRequest
       : ConnectionRequest(db), pending_(std::move(pending_connection)) {}
 
   void Perform() override {
+    if (!pending_->callbacks->IsValid()) {
+      db_->RequestComplete(this);
+      return;
+    }
+
     if (db_->metadata_.id == kInvalidId) {
       // The database was deleted then immediately re-opened; OpenInternal()
       // recreates it in the backing store.