Chrome Version: 56.0.2912.0 Revision	817f8b49ade74a199d0c83d11a7befb89e1a0ba5-refs/heads/master@{#430205}
OS: Windows(7,8,10)

What steps will reproduce the problem?
(1) Lunch chrome, navigate to http://foersom.com/net/HowTo/data/OoPdfFormExample.pdf
(2) Click on Print icon(print preview opened), close preview page and observe

Actual: Webview process of pdf viewer crashed.

Crash ID 78d800a1-2285-4749-bcc8-1f4fb5157542 (Server ID: 4d439ea700000000)

Expected: Webview process of pdf viewer should not crash.

This is a regression issue, broken in 'M-56', will soon update the other info:

Good Build: 56.0.2890.0
Bad Build: 56.0.2891.0
 

Deleted: Actual_PDF.mp4 460 KB

	Actual_PDF.mp4 460 KB View Download

Deleted: Expected_PDF.mp4 477 KB

	Expected_PDF.mp4 477 KB View Download