- Turn a fatal assert into a warning if we can't guarantee a drawTarget.
This should not be fatal since the DrawTarget is checked later.
- Remove a fatal assertion if a display table background is cross-document
since non-display iframes may cause this situation without it being an
error.
Only mention OpenGL accelerated canvas flag when it's relevant, and rename
the entry to be more descriptive, to prevent confusion for users looking
at Troubleshooting Information.
This DOM/Web API is entirely irrelevant for desktop use.
We give back the width/height of the root scrollframe of content and
for scale we pass forward our dpp resolution (usually 1.0).
Since we have no "no touch" zones in our content on desktop,. the rest
(origin and offset) is hard-coded to (0,0).
- Renames it to NS_CSS_FULL_CORNERS and uses the one macro for all full
corners. In preparation for giving half corners the same treatment.
- Swaps to prefix operator++
A few dozen Emojis use otherwise general font characters in the lower codepages.
Luckily, the Emoji codepages always include either a VS16 or KeyCap suffix.
Detection of Emoji Components, for use as suffixes of TextDefault.
Detection of Non-Presentation Emojis as TextDefault.
Detection of all Extended Pictographics as EmojiDefault.
This ensures we don't scale the underlying size of the layer beyond what
is close to the current display size. When box shadows get much larger
than this, they start taking so much time to render that successive
frames grow in scale too fast for any inter-frame reuse to be possible.
With this, we avoid that and no longer get crushed by re-rendering
gigantic box shadows every single frame.
See BZ 1383825
There's considerable cost associated with creating HWA draw targets
which would negate and regress the performance won by it if used for
too small targets (like small spans of text).
This only uses HWA if >= 8K SurfaceAllocationSize to balance HWA draw
target cost with box blur cost.
Only blur one quadrant of a box-shadow and mirror it to the other quadrants.
This applies only if the corners are symmetrical (square corners or equal
corner radii) otherwise we'll fall back to the old method.
Sets the pref default to true and also add conneg entry for images
if jxl support is built.
Additionally, ifdefs the GfxPref to only observe when jxl is built.
