fix [2511580] Window poop on screen - drop down list left some residual when it resized

Change-Id: Ib9a3622e7a568ba26717a93b5bfa4a191651f4d0
diff --git a/libs/surfaceflinger/LayerBase.h b/libs/surfaceflinger/LayerBase.h
index a6e5644..62ec839 100644
--- a/libs/surfaceflinger/LayerBase.h
+++ b/libs/surfaceflinger/LayerBase.h
@@ -157,11 +157,11 @@
     
     /**
      * setCoveredRegion - called when the covered region changes. The covered
-     * region correspond to any area of the surface that is covered 
+     * region corresponds to any area of the surface that is covered
      * (transparently or not) by another surface.
      */
     virtual void setCoveredRegion(const Region& coveredRegion);
-    
+
     /**
      * validateVisibility - cache a bunch of things
      */