GitLab

In r686771, we converted a base::Callback used by printing::PrintManager
for Android printing to a base::OnceCallback. This was incorrect, as
the PrintManager's lifetime is tied to the tab's lifetime. Now printing
for a given PrintManager works the first time, but never again after the
OnceCallback has been called. The callback needs to remain valid for the
duration of the PrintManager's lifetime, so make it a RepeatingCallback.

TBR=vkuzkokov@chromium.org

Bug: 1018377
Change-Id: I367ea2e1850ee67a30ef024da2b93d4cef701f62
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1885001
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Bo <boliu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#710381}