Log Message:
Update to 52.8.0

Changelog:
    Various security fixes

    Various stability and regression fixes

    Performance improvements to the Safe Browsing service to avoid
      slowdowns while updating site classification data

Security fixes:
#CVE-2018-5183: Backport critical security fixes in Skia
#CVE-2018-5154: Use-after-free with SVG animations and clip paths
#CVE-2018-5155: Use-after-free with SVG animations and text paths
#CVE-2018-5157: Same-origin bypass of PDF Viewer to view protected PDF files
#CVE-2018-5158: Malicious PDF can inject JavaScript into PDF Viewer
#CVE-2018-5159: Integer overflow and out-of-bounds write in Skia
#CVE-2018-5168: Lightweight themes can be installed without user interaction
#CVE-2018-5174: Windows Defender SmartScreen UI runs with less secure behavior
 for downloaded files in Windows 10 April 2018 Update
#CVE-2018-5178: Buffer overflow during UTF-8 to Unicode string conversion
 through legacy extension
#CVE-2018-5150: Memory safety bugs fixed in Firefox 60 and Firefox ESR 52.8