[jumbo] Remove 'using' declaration for mojom::blink::IDBCursor

The lone 'IDBCursor' can collide with the blink::IDBCursor. Remove the
'using' and specify the namespace instead.

TBR=pwnall@chromium.org

Bug: 717812
Change-Id: I092b6d3c30931f45d13fd5c35af24539884fa686
Reviewed-on: https://chromium-review.googlesource.com/c/1301434
Commit-Queue: Fredrik Söderquist <fs@opera.com>
Reviewed-by: Daniel Bratell <bratell@opera.com>
Cr-Commit-Position: refs/heads/master@{#603039}
1 file changed