--- a/layout/base/nsDisplayList.cpp
+++ b/layout/base/nsDisplayList.cpp
@@ -4691,21 +4691,16 @@ nsDisplayTransform::GetDeltaToTransformO
       nscoord offset =
         (index == 0) ? aFrame->GetPosition().x : aFrame->GetPosition().y;
       coords[index] -= NSAppUnitsToFloatPixels(offset, aAppUnitsPerPixel);
     }
   }
 
   coords[2] = NSAppUnitsToFloatPixels(display->mTransformOrigin[2].GetCoordValue(),
                                       aAppUnitsPerPixel);
-  if (aBoundsOverride) {
-    // Adjust based on the origin of the override:
-    coords[0] += NSAppUnitsToFloatPixels(aBoundsOverride->x, aAppUnitsPerPixel);
-    coords[1] += NSAppUnitsToFloatPixels(aBoundsOverride->y, aAppUnitsPerPixel);
-  }
 
   return Point3D(coords[0], coords[1], coords[2]);
 }
 
 /* Returns the delta specified by the -moz-perspective-origin property.
  * This is a positive delta, meaning that it indicates the direction to move
  * to get from (0, 0) of the frame to the perspective origin. This function is
  * called off the main thread.