[IndexedDB] Closing mojo connections when renderer quits

content/browser/indexed_db/cursor_impl.h

Index: content/browser/indexed_db/cursor_impl.h
diff --git a/content/browser/indexed_db/cursor_impl.h b/content/browser/indexed_db/cursor_impl.h
index 69254289cd27628972935caaf6d7bd1ea6c3acc8..7074444fe92ef4eadd442b5a3a56f9c18035fafd 100644
--- a/content/browser/indexed_db/cursor_impl.h
+++ b/content/browser/indexed_db/cursor_impl.h
@@ -24,7 +24,7 @@ class CursorImpl : public ::indexed_db::mojom::Cursor {
  public:
   CursorImpl(std::unique_ptr<IndexedDBCursor> cursor,
              const url::Origin& origin,
-             scoped_refptr<IndexedDBDispatcherHost> dispatcher_host);
+             IndexedDBDispatcherHost* dispatcher_host);
   ~CursorImpl() override;
 
   // ::indexed_db::mojom::Cursor implementation
@@ -47,7 +47,9 @@ class CursorImpl : public ::indexed_db::mojom::Cursor {
   class IDBThreadHelper;
 
   IDBThreadHelper* helper_;
-  scoped_refptr<IndexedDBDispatcherHost> dispatcher_host_;
+  // This raw pointer is safe because all CursorImpl instances are owned by an
+  // IndexedDBDispatcherHost.
+  IndexedDBDispatcherHost* dispatcher_host_;
   const url::Origin origin_;
   scoped_refptr<base::SingleThreadTaskRunner> idb_runner_;