Eliminate SwapOut message parameters, keeping state in RVHM instead.
We no longer need to process SwapOut messages on the IO thread, and we no longer pass browser-internal request IDs to the renderer to be echoed back. This paves the way to support transferring navigations using
CrossSiteResourceHandler.
BUG=238331
TEST=No behavior change.
Review URL: https://chromiumcodereview.appspot.com/15682009
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@206354 0039d316-1c4b-4281-b951-d872f2087c98
27 files changed
