With scroll unification, blink::WebPlugin no longer receives gesture
scroll events, which breaks some tests that expect it to see them.
However the only current users of WebPlugin, besides tests, are:
- PDF viewer, which does its own gesture detection and drives scrolling
from outside the plugin through special hooks.
- Pepper API (still used for NaCL in extensions and Chrome Apps). Pepper
forwards some inputs, but PepperPluginInstanceImpl::HandleInputEvent
will drop gesture events as ClassifyInputEvent() would return 0.
- Placeholders that tell the user a plugin couldn't be loaded. These
aren't scrollable (plugin_placeholders.css sets overflow:hidden).
Therefore, it appears WebPlugin doesn't need to receive gesture events.
Update the test expectations accordingly.
Bug: 1252915
Change-Id: Ib0498479d90bf8368156e68953fcf5fb9ae98951
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3417691
Reviewed-by: David Bokan <bokan@chromium.org>
Reviewed-by: danakj chromium <danakj@chromium.org>
Commit-Queue: Steve Kobes <skobes@chromium.org>
Cr-Commit-Position: refs/heads/main@{#964589}
f86135bda9