[Webkit-unassigned] [Bug 79167] Expose a setting to exempt media playback from user gesture requirement after a user gesture is initiated on loading/playing a media

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=79167





--- Comment #5 from Eric Carlson <eric.carlson at apple.com>  2012-02-21 21:58:27 PST ---
(In reply to comment #4)
> No, we do not lift the restriction in HTMLMediaElement. 
> So if I build chrome with requireUserGestureForMediaPlayback settings on, I have to manually click on the play and pause button to play and pause the media, even if the media is loaded through user gesture.
> There is no place we called removeBehaviorRestriction() in chromium.
> 
I think we should just clear m_restrictions if loading or playback is initiated by a user gesture. I would suggest adding a function like this:

    void HTMLMediaElement::userRequestsMediaLoading()
    {
        // The user is requesting data loading and/or playback, so remove the "only change playback in response
        // to a user gesture" restriction on this movie.
        m_restrictions = NoRestrictions;
    }

 and then this:

    if (ScriptController::processingUserGesture())
        userRequestsMediaLoading();

to play() and load(), and you won't need any of the rest of your patch.

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