GitLab

Two up mode is implemented in the plugin but not the ink controller,
and triggering it causes a crash if the plugin is not on the page.

Also fixing the following case:
1. Rotate PDF. Annotation is disabled.
2. Set 2 page view.
3. Rotate PDF back to upright.

Currently, annotation is re-enabled, despite still being in 2 page view.
After this CL, annotation remains disabled, until two page view is
turned off.

Bug: 1048812
Change-Id: I26c0cb43645c82905e1fe5b53398332573d8a774
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2411284Reviewed-by: dpapad <dpapad@chromium.org>
Commit-Queue: Rebekah Potter <rbpotter@chromium.org>
Cr-Commit-Position: refs/heads/master@{#807496}