Chromium change: https://chromium.googlesource.com/chromium/src/+/fb432b1ad18bc0654844e147bf089237e97b6cd3 commit fb432b1ad18bc0654844e147bf089237e97b6cd3 Author: Lukasz Anforowicz <lukasza@chromium.org> Date: Wed Sep 8 22:16:13 2021 +0000 Mark ui_test_utils::NavigateToURL as WARN_UNUSED_RESULT. This is step 2 from https://crbug.com/1246568 - it adds WARN_UNUSED_RESULT annotation to ui_test_utils::NavigateToURL to ensure the callers verify if the navigation has succeeded. The CL has to add ASSERT_TRUE in a few places that have already started backsliding since https://crrev.com/c/3140783 and https://crrev.com/c/3149434. Bug: 1246568