Removed WebContentsImplTest::CrossSiteNavigationCanceled
This test checks that if a new navigation does not commit after the
current renderer has run its unload handler this does not leave the WebContents
in a stuck state. However, following
https://codereview.chromium.org/
464593003/, the current renderer will only run
its unload handler after teh new navigation has committed. Therefore, this test
is no longer applicable.
BUG=402020
Review URL: https://codereview.chromium.org/
1035963003
Cr-Commit-Position: refs/heads/master@{#322552}