We already reduce tiling coverage to a minimum (only the tiles that intersect the visible rect) during memory pressure.
However, this doesn't take effect immediately when we come under pressure, but the next time we flush our compositing state.
We should make sure to do it ASAP to avoid some pointless deaths.
Created attachment 271613 [details]
Attachment 271613 [details] did not pass style-queue:
ERROR: Source/WebCore/platform/MemoryPressureHandler.cpp:34: Alphabetical sorting problem. [build/include_order] 
Total errors found: 1 in 5 files
If any of these errors are false positives, please file a bug against check-webkit-style.
Created attachment 271614 [details]
Comment on attachment 271614 [details]
Clearing flags on attachment: 271614
Committed r196753: <http://trac.webkit.org/changeset/196753>
All reviewed patches have been landed. Closing bug.