commit 853590fad2f104bd6b922dcdbaa3b3672a1fafe5
author Charles Reis <creis@chromium.org> Thu Jul 14 20:47:49 2016
committer Charles Reis <creis@chromium.org> Thu Jul 14 20:50:42 2016
tree e9960f23caed9100c59f55bfdb7aa03127244e42
parent 117fc6cce4a3fd99f22a7351b19e094b6e64cba1

Clear stale NavigationParams from HistoryController.

This prevents newly created iframes during a back/forward from
targeting the wrong NavigationEntry.

BUG=623319
TEST=See bug comment 20 for repro steps.
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_site_isolation

Review-Url: https://codereview.chromium.org/2144823002
Cr-Commit-Position: refs/heads/master@{#404870}
(cherry picked from commit 4d78d33cb1852e7d487f1d327517c4c4044a3ca3)

Review URL: https://codereview.chromium.org/2155443002 .

Cr-Commit-Position: refs/branch-heads/2785@{#125}
Cr-Branched-From: 68623971be0cfc492a2cb0427d7f478e7b214c24-refs/heads/master@{#403382}