The default NTP has a cross-site subframe. We don't want that subframe to be spun off into a different process. This will likely involve plumbing control out to the embedder.
The following revision refers to this bug: https://chromium.googlesource.com/chromium/src.git/+/7595a1bcff6400285c27c80c5e48902aad0560b5 commit 7595a1bcff6400285c27c80c5e48902aad0560b5 Author: avi <avi@chromium.org> Date: Thu Nov 17 20:24:01 2016 Don't split off NTP subframes with TDI. BUG= 665109 CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_site_isolation Review-Url: https://codereview.chromium.org/2499313002 Cr-Commit-Position: refs/heads/master@{#432951} [modify] https://crrev.com/7595a1bcff6400285c27c80c5e48902aad0560b5/chrome/browser/chrome_content_browser_client.cc [modify] https://crrev.com/7595a1bcff6400285c27c80c5e48902aad0560b5/chrome/browser/chrome_content_browser_client.h [modify] https://crrev.com/7595a1bcff6400285c27c80c5e48902aad0560b5/content/browser/frame_host/render_frame_host_manager.cc [modify] https://crrev.com/7595a1bcff6400285c27c80c5e48902aad0560b5/content/public/browser/content_browser_client.cc [modify] https://crrev.com/7595a1bcff6400285c27c80c5e48902aad0560b5/content/public/browser/content_browser_client.h
Comment 1 by a...@chromium.org
, Nov 14 2016