OOP PDF: Fix access to chrome://resources in print preview.
When the PDF extension is iframed by the print preview page, it isn't
granted permission to access chrome://resources. This CL causes the
extension to be granted access to chrome://resources in the renderer
process for print-preview by adding it as a content script for
chrome://print/*. This is a temporary work-around until either print
preview uses an embed element for the OOP PDF plugin or OOP iframe
allows extensions to run with their normal permissions when iframed.
This also removes the need for the work-around added in r306307.
BUG=437417,444752
Review URL: https://codereview.chromium.org/819983002
Cr-Commit-Position: refs/heads/master@{#310044}
5 files changed
