Fallback to old extensions API if NUM_EXTENSIONS errors
<!-- Please describe your changes on the following line: -->
Fixes a panic querying extensions in WebGL 1.
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `___` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix#21993
- [x] These changes do not require tests because it fixes a panic
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/24128)
<!-- Reviewable:end -->
Implement raqote backend for canvas 2D rendering
<!-- Please describe your changes on the following line: -->
This is a follow-up of #23936.
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `___` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [ ] These changes fix#23431
<!-- Either: -->
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/24048)
<!-- Reviewable:end -->
Add [Default] toJSON() to performance interfaces
<!-- Please describe your changes on the following line: -->
Enable `[Default] toJSON()` lines that were previously commented out.
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `___` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix#21274
<!-- Either: -->
- [x] There are tests for these changes
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/24097)
<!-- Reviewable:end -->
Work around crash on Windows when returning JS::Value by value.
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix#24061
- [x] These changes do not require tests because no tests on Windows, sadly.
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/24120)
<!-- Reviewable:end -->
Update hyper to 0.12.33.
This improves Servo's ability to connect to some pages from problematic networks like the Mozilla SF office.
---
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix#24104
- [x] There are tests for these changes
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/24105)
<!-- Reviewable:end -->
Call gstreamer_root with top_dir string, not func.
Commit 72e28dffcd introduced a build regression on Linux when resolving the in-tree gstreamer libs.
The error:
```
$ ./mach build --release
...
The details of the failure are as follows:
AttributeError: 'function' object has no attribute 'endswith'
File "/data/joelm/personal/UTA/dissertation/servo/servo-master.git/python/servo/build_commands.py", line 237, in build
env = self.build_env(target=target, is_build=True)
File "/data/joelm/personal/UTA/dissertation/servo/servo-master.git/python/servo/command_base.py", line 646, in build_env
if self.needs_gstreamer_env(target or host_triple(), env):
File "/data/joelm/personal/UTA/dissertation/servo/servo-master.git/python/servo/command_base.py", line 574, in needs_gstreamer_env
if path.isdir(gstreamer_root(effective_target, env, self.get_top_dir)):
File "/data/joelm/personal/UTA/dissertation/servo/servo-master.git/python/servo/command_base.py", line 257, in gstreamer_root
return path.join(topdir, "support", "linux", "gstreamer", "gst")
File "/usr/lib/python2.7/posixpath.py", line 70, in join
elif path == '' or path.endswith('/'):
```
The problem is that get_top_dir is being passed as a function to
gstreamer_root in a couple of places instead of being invoked first.
<!-- Please describe your changes on the following line: -->
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `___` with appropriate data: -->
- [ ] `./mach build -d` does not report any errors
- [ ] `./mach test-tidy` does not report any errors
- [ ] These changes fix #___ (GitHub issue number if applicable)
<!-- Either: -->
- [ ] There are tests for these changes OR
- [X] These changes do not require tests because: it is early in a build script and outside the scope of tests.
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/24099)
<!-- Reviewable:end -->
Commit 72e28dffcd introduced a build
regression on Linux when resolving the in-tree gstreamer libs.
The error:
------------------------------------
$ ./mach build --release
...
The details of the failure are as follows:
AttributeError: 'function' object has no attribute 'endswith'
File "/data/joelm/personal/UTA/dissertation/servo/servo-master.git/python/servo/build_commands.py", line 237, in build
env = self.build_env(target=target, is_build=True)
File "/data/joelm/personal/UTA/dissertation/servo/servo-master.git/python/servo/command_base.py", line 646, in build_env
if self.needs_gstreamer_env(target or host_triple(), env):
File "/data/joelm/personal/UTA/dissertation/servo/servo-master.git/python/servo/command_base.py", line 574, in needs_gstreamer_env
if path.isdir(gstreamer_root(effective_target, env, self.get_top_dir)):
File "/data/joelm/personal/UTA/dissertation/servo/servo-master.git/python/servo/command_base.py", line 257, in gstreamer_root
return path.join(topdir, "support", "linux", "gstreamer", "gst")
File "/usr/lib/python2.7/posixpath.py", line 70, in join
elif path == '' or path.endswith('/'):
------------------------------------
The problem is that get_top_dir is being passed as a function to
gstreamer_root in a couple of places instead of being invoked first.
Switch to chromeless mode when app opens from a servo:// link
Fix#24077
There's an issue where, in chromeless mode, when clicking a link in Servo, Edge opens the link (as expected) but not in a new tab, in a new window.
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/24095)
<!-- Reviewable:end -->
Ensure documents drop when a pipeline exits
<!-- Please describe your changes on the following line: -->
minimalist companion/alternative to https://github.com/servo/servo/pull/24047
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `___` with appropriate data: -->
- [ ] `./mach build -d` does not report any errors
- [ ] `./mach test-tidy` does not report any errors
- [ ] These changes fix #___ (GitHub issue number if applicable)
<!-- Either: -->
- [ ] There are tests for these changes OR
- [ ] These changes do not require tests because ___
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/24072)
<!-- Reviewable:end -->
Fix extension querying when using WebGL2
This patch fixes a crash caused by using a deprecated GL call. Starting with OpenGL 3 (used by WebGL2), the glGetString(GL_EXTENSIONS) call is deprecated, and some drivers produce GL_INVALID_ENUM error. Querying can be done by checking the number of extensions first, then getting the extensions one by one.
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `___` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [ ] These changes fix #___ (GitHub issue number if applicable)
<!-- Either: -->
- [ ] There are tests for these changes OR
- [x] These changes do not require tests (I think) because it depends on the video driver
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/24055)
<!-- Reviewable:end -->
Enable GStreamer on Windows.
I have verified that desktop and emulator UWP builds work with this set of DLLs.
---
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes do not require tests because no tests for UWP
<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/24004)
<!-- Reviewable:end -->
