For most of the old code, which lives inside content/, we'll have to wait until Android WebView is ready. I'll update this bug and close the PlzNavigate launch when that's the case.
However, I'm starting the work in the chrome/ layer right now. It is not used by WebView, and the old code path is not tested and maintained anymore, so we can start removing out the old code there. My plan is the following:
1) Remove browser side navigation from chrome://flags (done)
2) Clean up the old code in browser_tests & unit_tests (in progress)
3) Clean up the old code in chrome/.
The goal is not to have any usage of IsBrowserSideNavigation enabled or any mention of PlzNavigate in chrome/ once 2 and 3 are done.
Comment 1 by bugdroid1@chromium.org
, Nov 29 2017