0f184d3270
Now that we have the full render nodes available, there is not much benefit in fine-grained control over multiple rectangles. In particular, it's causing pain with complex regions. There might be a benefit in clipping to the region's rectangles in cases like widget-factory where the whole diff is made up of the 2 rectangles of spinner and the pulsing progress bar, but it needs a good heuristic for where this is useful.