IndexedDB: Remap Blink variant metadata typemaps to modules types

Bug: 717812
Change-Id: I6d53865348171ba2fe777a8730b08248d05e7f26
Reviewed-on: https://chromium-review.googlesource.com/c/1344222
Commit-Queue: Chase Phillips <cmp@chromium.org>
Reviewed-by: Daniel Murphy <dmurph@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Cr-Commit-Position: refs/heads/master@{#613193}
20 files changed