Implement a PerformanceActor.
This is necessary for the devtools "Start Recording Performance" button to
send a message.
(This message is not yet supported, so it leads to
'unexpected message type "startRecording" found for actor "performance4"'.)
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This is necessary for the devtools "Start Recording Performance" button to
send a message.
(This message is not yet supported, so it leads to
'unexpected message type "startRecording" found for actor "performance4"'.)
Upgrade Rust to nightly 2015-08-10
Still needs snapshot.
Snapshot probably could also work as today's nightly (I wasn't able to download the latest one due to choppy internet), there isn't any plugins churn I know of
r? @larsbergstrom
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Fix "'PaintWorker' panicked at 'index 0 and/or 4 in `*` do not lie on…
… character boundary" when printing display list.
This whole piece of code seems a bit fragile, but it fixes the immediate problem for now.
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Fail on unrecognized debug option
Refs: https://github.com/servo/servo/issues/7142
Ran some basic functional tests:
```
$ ./mach run -d -Z bubble-widths,disable-canvas-aa,trace-layout tests/ref/blur_ref.html
$ ./mach run -d -Z help
Usage: /Users/greg/servo/target/debug/servo debug option,[options,...]
where options include
Options:
bubble-widths Bubble intrinsic widths separately like other engines.
disable-text-aa Disable antialiasing of rendered text.
disable-canvas-aa Disable antialiasing on the HTML canvas element.
dump-flow-tree Print the flow tree after each layout.
dump-display-list Print the display list after each layout.
dump-display-list-json Print the display list in JSON form.
dump-display-list-optimized Print optimized display list (at paint time).
relayout-event Print notifications when there is a relayout.
profile-tasks Instrument each task, writing the output to a file.
show-compositor-borders Paint borders along layer and tile boundaries.
show-fragment-borders Paint borders along fragment boundaries.
show-parallel-paint Overlay tiles with colors showing which thread painted them.
show-parallel-layout Mark which thread laid each flow out with colors.
paint-flashing Overlay repainted areas with a random color.
trace-layout Write layout trace to an external file for debugging.
validate-display-list-geometry Display an error when display list geometry escapes overflow region.
disable-share-style-cache Disable the style sharing cache.
parallel-display-list-building Build display lists in parallel.
replace-surrogates Replace unpaires surrogates in DOM strings with U+FFFD. See https://github.com/servo/servo/issues/6564
gc-profile Log GC passes and their durations.
$ ./mach run -d -Z blah
error: unrecognized debug option: blah
Servo exited with return value 1
```
Didn't check that setting debug flags actually did anything.
Haven't written much Rust so this feels more verbose than necessary.
Added `disable-canvas-aa` to debug options help.
Should DebugOptions struct derive Clone like Opts does?
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