GitLab

Reorganize LinkLoaderPreloadTest

It's getting hard to maintain LinkLoaderPreloadTest as number of fields
in PreloadTestParams increases. This patch splits the test cases into
several subclesses that take only relevant parameters.

Change-Id: I3c63ec45b162c98f64eb93a1293695d5b6e28d14
Reviewed-on: https://chromium-review.googlesource.com/925984Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Commit-Queue: Kunihiko Sakamoto <ksakamoto@chromium.org>
Cr-Commit-Position: refs/heads/master@{#537746}