GitLab

For code simplification, this CL replaces WebPrerenderRelType with
mojom::PrerenderRelType.

Before this change, WebPrerenderRelType was represented as bit-field.
This is because it was allowed to specify both "prerender"[1] and
"next"[2] types at the same time in the link rel attribute like
<link rel="prefetch next">. However, in that case, "prerender" is just
prioritized[3], so it was unnecessary to keep both the types in the
bit-field.

Therefore this CL introduces the mojom::PrerenderRelType as enum instead
of bit-field. This would make code simpler and more readable.

[1] https://html.spec.whatwg.org/C/#link-type-prerender
[2] https://html.spec.whatwg.org/C/#link-type-next
[3] https://source.chromium.org/chromium/chromium/src/+/master:components/prerender/browser/prerender_manager.cc;l=177;drc=ee49bcdf8e3a7764fa22b8e9d1ec1d0c9332870f

Bug: n/a
Change-Id: Ida2957a659c7578930bdeac136c72ebc8cacb8b8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2409890Reviewed-by: Ryan Sturm <ryansturm@chromium.org>
Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Commit-Queue: Hiroki Nakagawa <nhiroki@chromium.org>
Cr-Commit-Position: refs/heads/master@{#807396}