Romain Guy 7036fdd099 Do not blend opaque windows.
This change ensures the wallpaper is rendered into an opaque surface
which avoids a glClear() in SurfaceFlinger. This should save quite
a bit of work on every frame when panning the workspace in launcher.

Change-Id: Id43d3498a54c2d60ec4ee3377c92ef79bff55bc1
2011-09-26 16:12:04 -07:00
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