Enable complex FormData upload over Service Worker

This CL fixes the bug uploading FormData is failed when
- the Formdata is uploaded over service worker
- that contains both File and Blob
That's because when we pass the formdata to service worker,
PopulateResourceRequestBody converts Blob to DataPipe to avoid
data copy that combination FormDataBytesConsumer doesn't assume.

Then this CL has DataAndDataPipeBytesConsumer reuse
DataAndEncodedFileOrBlobBytesConsumer to adapt any combination.

Fixed: 40790626, 40921917
Change-Id: I8fa42e2fb7b7e4c0bfd9341ed55f9c708e3276b1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6182832
Commit-Queue: Yoichi Osato <yoichio@chromium.org>
Reviewed-by: Nidhi Jaju <nidhijaju@chromium.org>
Reviewed-by: Shunya Shishido <sisidovski@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1419688}