Log message:
firefox*: Reduce SUN_BUFFER_FRAMES back down to 32.

This was a precaution but actually seems to introduce frame drops
at the default audio latency.

Log message:
firefox60: Disable the nonblocking audio code for now.

It seems to cause frame drops at higher latencies.

Log message:
firefox60: Add sun audio backend and make it a default where supported.

This replaces the OSS backend with something that passes the unit tests,
supports additional channels, and supports recording. It will be included
with future versions of Firefox.

Tested with:

* YouTube audio-video sync test
* about:support device detection
* WebRTC microphone recording (using an USB microphone)

While here, fix WebRTC builds.

Note: you can select an audio backend using the about:config variable
media.cubeb.backend. This can be set to options such as sun/pulse/oss.

Let me know if you still need to use the oss backend. It's very
incomplete, buggy, and FreeBSD has already removed it - ideally we
should eventually.

Bump PKGREVISION.

Log message:
firefox*: don't use /dev/sound on netbsd. it treats "pause" as a sticky
operation and might randomly fail to play audio if another program has
paused its audio.

PR kern/54229

Log message:
firefox60: update to 60.7.0nb2.

NetBSD doesn't ship libGL.so.1 due to a major bump. Look for the unversioned
name.

Based on maya's patch for www/firefox.

Log message:
firefox60: update to 60.7.0nb1.

copy tsutsui's commit to firefox:

fix wrong latency unit in stream_init() function.

Based on a patch in PR pkg/54206 from Y.Sugahara.
Bump PKGREVISION.

Log message:
Update to 60.7.0

From Piotr Meyer, thank you.

Changelog:
changed:
    Font and date adjustments to accommodate the new Reiwa era in Japan

fixed:
#CVE-2019-9815: Disable hyperthreading on content JavaScript threads on macOS
#CVE-2019-9816: Type confusion with object groups and UnboxedObjects
#CVE-2019-9817: Stealing of cross-domain images using canvas
#CVE-2019-9818: Use-after-free in crash generation server
#CVE-2019-9819: Compartment mismatch with fetch API
#CVE-2019-9820: Use-after-free of ChromeEventHandler by DocShell
#CVE-2019-11691: Use-after-free in XMLHttpRequest
#CVE-2019-11692: Use-after-free removing listeners in the event listener manager
#CVE-2019-11693: Buffer overflow in WebGL bufferdata on Linux
#CVE-2019-7317: Use-after-free in png_image_free of libpng library
#CVE-2019-9797: Cross-origin theft of images with createImageBitmap
#CVE-2018-18511: Cross-origin theft of images with ImageBitmapRenderingContext
#CVE-2019-11694: Uninitialized memory memory leakage in Windows sandbox
#CVE-2019-11698: Theft of user history data through drag and drop of hyperlinks \ 
to and from bookmarks
#CVE-2019-5798: Out-of-bounds read in Skia
#CVE-2019-9800: Memory safety bugs fixed in Firefox 67 and Firefox ESR 60.7

Log message:
update firefox HOMEPAGE (http -> https)