What's new in the WebKitGTK 2.48.2 release?
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  - Enable CSS Overscroll Behavior by default.
  - Change threaded rendering implementation to use Skia API instead of WebCore display
    list that is not thread safe.
  - Fix rendering when device scale factor change comes before the web view geometry
    update.
  - Fix network process crash on exit.
  - Fix the build with ENABLE_RESOURCE_USAGE=OFF.
  - Fix several crashes and rendering issues.