GitLab

Consolidate the calls to base::SysInfo::IsRunningOnChromeOS(), which is
only available when OS_CHROMEOS is defined, to PDFiumTestBase. Then all
tests that are derived from PDFiumTestBase can just call
PDFiumTestBase::IsRunningOnChromeOS() and avoid having #ifs.

Change-Id: Id6da1b6b3db648ebb0dab121e48f525fd18266ea
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1764557Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#689572}