ahocevar
48efd43250
In OpenLayers 2.12, only one tile was loaded per animation frame. This change brings back something similar as part of the tile manager. But we do not use requestAnimationFrame anymore, because @elemoine pointed out that browsers may give requestAnimationFrame invoked functions a higher priority than setTimeout invoked functions. The reason for this change is http://lists.osgeo.org/pipermail/openlayers-users/2013-April/028063.html.