ChangeLog

2013-07-28  Andreas Kling  <[email protected]>

        Don't update the text track override CSS every time a media element is created.

        <http://webkit.org/b/119199>

        <rdar://problem/14572855>

        Reviewed by NOBODY (OOPS!).

        We should only have to update the CSS if the accessibility caption preferences are changed.

        This was forcing a full style recalc in every Document any time a media element is instantiated.

        * page/CaptionUserPreferencesMediaAF.cpp:

        (WebCore::CaptionUserPreferencesMediaAF::setInterestedInCaptionPreferenceChanges):

2013-07-27  Andreas Kling  <[email protected]>

        RenderBoxModelObject::firstLetterRemainingText should be a RenderTextFragment*.

Source/WebCore/page/CaptionUserPreferencesMediaAF.cpp

@@void CaptionUserPreferencesMediaAF::setInterestedInCaptionPreferenceChanges()

    if (!m_listeningForPreferenceChanges) {

        m_listeningForPreferenceChanges = true;

        CFNotificationCenterAddObserver(CFNotificationCenterGetLocalCenter(), this, userCaptionPreferencesChangedNotificationCallback, kMAXCaptionAppearanceSettingsChangedNotification, 0, CFNotificationSuspensionBehaviorCoalesce);

238 updateCaptionStyleSheetOveride();

238239 }

239

240 updateCaptionStyleSheetOveride();

}

void CaptionUserPreferencesMediaAF::captionPreferencesChanged()