If the constructor throws an exception, the object will still be
finalized. Hence we have to make sure to set objects that are cleaned up
to 0/null and clean up everything else. Otherwise the finalizer might
double clean up a failed PdfRenderer.
It also appears that the Pdfium error state is only set if a open-doc
function fail. Hence remove it in every other case. Otherwise successes
might read the error of the last call.
Fixes: 63875707, 37052344
Test: cts-tradefed run singleCommand cts-dev -m Pdf --test=android.graphics.pdf.cts.PdfRendererTest
Change-Id: I6d9fc26be768ba1e338344740e340cf9b56386e9
7bc18b20fa