Add an integration test for a URLLoaderThrottle changing a URL and ensuring that it's requested correctly.

This is tested as part of PolicyTest.ForceGoogleSafeSearch after the fix in r605518, but we should have a test at the content-layer for URLLoaderThrottle's behavior.

Bug: 902775
Change-Id: I9f9f4de201d55389709a4a7336c6bf581bb4bab3
Reviewed-on: https://chromium-review.googlesource.com/c/1323896
Reviewed-by: Clark DuVall <cduvall@chromium.org>
Commit-Queue: John Abd-El-Malek <jam@chromium.org>
Cr-Commit-Position: refs/heads/master@{#606101}
1 file changed