Jed Davis 2257145e1c Bug 1635451 - Minimize content processes' connections to the X server. r=jgilbert,stransky,nika ... This patch launches content processes with the `MOZ_HEADLESS` env var set if they're using GTK with an X11 display (and there's no other reason they'd need GTK). The goal is to avoid exhausting Xorg's default limit of 256 clients if there are many content processes due to Fission. If these conditions are met, the content process doesn't need to eagerly connect to the X server. This does not affect the sandbox policy, and content processes can still use X if needed for, e.g., WebGL. The boolean pref `dom.ipc.avoid-gtk`, set by default, controls this feature. In the future it could also be extended to minimize GTK use with Wayland displays. Note that disabling `widget.non-native-theme.enabled`, which is also enabled by default, will restore the use of X11 in all content processes even if this pref is set; the alternative is that widgets wouldn't render in that case. This change will also save some memory for now-unnecessary instances of GTK's global state, and improve content process startup time. Remove also the temp pref dom.ipc.remote-mozIcon because it cannot work anymore with the content process being headless. Differential Revision: https://phabricator.services.mozilla.com/D112197		2021-07-06 07:42:42 +00:00
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icon	Bug 1635451 - Minimize content processes' connections to the X server. r=jgilbert,stransky,nika	2021-07-06 07:42:42 +00:00
EXIF.cpp	Bug 1680387 - Sanity-check exif resolution with other exif metadata. r=tnikkel	2021-05-05 09:41:25 +00:00
EXIF.h	Bug 1680387 - Sanity-check exif resolution with other exif metadata. r=tnikkel	2021-05-05 09:41:25 +00:00
GIF2.h
iccjpeg.c
iccjpeg.h
moz.build	Bug 1707590 - Part 2: Implement nsJXLDecoder r=tnikkel	2021-05-06 02:00:57 +00:00
nsAVIFDecoder.cpp	Bug 1696093 - AVIF image transform support. r=aosmond	2021-06-08 18:30:46 +00:00
nsAVIFDecoder.h
nsBMPDecoder.cpp
nsBMPDecoder.h
nsGIFDecoder2.cpp
nsGIFDecoder2.h
nsICODecoder.cpp
nsICODecoder.h
nsIconDecoder.cpp
nsIconDecoder.h
nsJPEGDecoder.cpp	Bug 1680387 - Sanity-check exif resolution with other exif metadata. r=tnikkel	2021-05-05 09:41:25 +00:00
nsJPEGDecoder.h	Bug 1680387 - Read and expose EXIF image resolution data. r=tnikkel,aosmond	2021-05-05 09:41:23 +00:00
nsJXLDecoder.cpp	Bug 1707590 - Part 2: Implement nsJXLDecoder r=tnikkel	2021-05-06 02:00:57 +00:00
nsJXLDecoder.h	Bug 1707590 - Part 2: Implement nsJXLDecoder r=tnikkel	2021-05-06 02:00:57 +00:00
nsPNGDecoder.cpp
nsPNGDecoder.h
nsWebPDecoder.cpp
nsWebPDecoder.h