737548 - pre connect http sessions on link hover

Status: RESOLVED DUPLICATE of bug 881804

(Core :: Layout, enhancement)

Description

[Patrick McManus [:mcmanus]]

On Tue, Mar 20, 2012 at 12:44 PM, Jason Duell <[e-mail]> wrote:
How good are we at figuring out if a user is about to click a link (vs moving the mouse over it en route to other stuff)?  If we have a high % chance of guessing when a user is about to click on a link, we could also speculatively (and inexpensively) pre-open a TCP connnection for it.   I seem to recall some stats that it actually takes users a fraction of a second to focus precisely on a link?
        
roc then says:
We have API to easily find all the DOM elements within any given rectangle of the mouse cursor, so without too much trouble we could implement "if the mouse is near a link for more than a given amount of time, try preconnecting it".

..

The layout API in question is nsLayoutUtils::GetFramesForArea .. the necko api is io-service::speculativeConnect from bug 723628