[webkit-changes] [WebKit/WebKit] 40b889: PDF files appear blank grey

[Per Arne Vollan]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 40b889cce15e0e1fb96b285ff60044350abf6018
      https://github.com/WebKit/WebKit/commit/40b889cce15e0e1fb96b285ff60044350abf6018
  Author: Per Arne Vollan <pvollan at apple.com>
  Date:   2023-03-09 (Thu, 09 Mar 2023)

  Changed paths:
    M Source/WebCore/PAL/pal/spi/cocoa/QuartzCoreSPI.h
    M Source/WebKit/WebProcess/WebPage/Cocoa/WebPageCocoa.mm
    M Source/WebKit/WebProcess/com.apple.WebProcess.sb.in

  Log Message:
  -----------
  PDF files appear blank grey
https://bugs.webkit.org/show_bug.cgi?id=253616
rdar://106342101

Reviewed by Geoffrey Garen.

PDF files appear blank grey with experimental sandbox enabled. This is caused by the experimental
sandbox blocking communication with launchd, which is required to do a Mach lookup of CARenderServer.
Access to CARenderServer is required by PDFKit, unless we are in Lockdown mode. To fix this we can
eagerly open up a connection to CARenderServer when not in Lockdown mode. In Lockdown mode,
CARenderServer should be blocked.

* Source/WebCore/PAL/pal/spi/cocoa/QuartzCoreSPI.h:
* Source/WebKit/WebProcess/WebPage/Cocoa/WebPageCocoa.mm:
(WebKit::WebPage::platformInitialize):
* Source/WebKit/WebProcess/com.apple.WebProcess.sb.in:

Canonical link: https://commits.webkit.org/261470@main