virtual nsIntRegion ComputeChangeInternal(NotifySubDocInvalidationFunc aCallback,
bool& aGeometryChanged)
{
ColorLayer* color = static_cast<ColorLayer*>(mLayer.get());
if (mColor != color->GetColor()) {
aGeometryChanged = true;
return NewTransformedBounds();
}
nsIntRegion boundsDiff;
boundsDiff.Xor(mBounds, color->GetBounds());
nsIntRegion result;
AddTransformedRegion(result, boundsDiff, mTransform);
return result;
}
