Disable mouse-event based preconnect on websites which dynamically change hrefs.
Disable mouse-event based preconnect on websites which dynamically change hrefs.

There are some websites which use window.onmousedown handler to change the href of the link (e.g. Google search results page). We would like to avoid mouse-event based preconnect on those pages.

BUG=235361

Review URL: https://chromiumcodereview.appspot.com/17010002

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@152476 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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