Remove pipeline_to_frame_map
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I think storing the `FrameId` on the `Pipeline` is cleaner than maintaining an extra `HashMap`. If not, I am ok with not making this change.
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URI to URL
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- [x] These changes fix#11450 (github issue number if applicable).
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- [x] There are tests for these changes (Windows 10 was never able to run them...)
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Obtain backtraces automatically from segfaults
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This enables more meaningful output from observing hard crashes outside of GDB through the judicious use of a SIGSEGV signal handler.
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- [X] These changes fix#9371 (github issue number if applicable).
- [X] There are tests for these changes OR
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Previously, the code that called this function was responsible for this.
Some code paths neglected to do it. This moves the damage removal to one
central location.
Update heartbeats-simple to 0.3.0
Updated heartbeats-simple dependency for native changes:
-Collapse libraries into one.
-Remove overriding of some default CMake behavior.
-Windows compatibility with compiler flags, locking, and sleeping in example (thanks Jack Moffitt and Vladimir Vukicevic).
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- [ ] These changes fix #__ (github issue number if applicable).
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Implement private browsing for mozbrowser
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Support the `mozprivatebrowsing` attribute on mozbrowser iframes. This separates the non-private and private sessions in terms of cookies, HSTS lists, cached HTTP credentials, HTTP connection pools, and web storage. The private session is shared between all private mozbrowsers, and lasts until shutdown.
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Implement filter for file-type input's accept attribute
Now the two sides are pasted together with the new version of `mime_guess` landed.
I tested this thing locally with stuff like this:
```html
<input id="input_file" type="file" accept=".doc,.docx,.xml,application/msword,application/vnd.openxmlformats-officedocument.wordprocessingml.document"></input>
<a onclick="open_file();">Click</a>
<script type="text/javascript">
function open_file() {
console.log("Open file");
document.getElementById("input_file").click();
}
</script>
```
Will WPT be able to handle this automatically?
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- [x] These changes is related to #11131
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- [ ] These changes do not require tests because _____
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