Previously, the `tests` feature flag of the `embedder_traits` crate
caused it and every crate recursively depending on it to be built twice.
This feature flag was used to provide a specific set of "resources"
when running tests. Instead, this commits overrides the `main()` function
of the test harness to change resources at runtime before running any test.
This is done by adding a dependency that has `name = "test"` in its
`[lib]` section of `Cargo.toml`. This overrides the crate found by
`extern crate test;` in code generated by `rustc --test`.
Read file URL in chunks
<!-- Please describe your changes on the following line: -->
This is a very straightforward PR: essentially, I replaced a `read_to_end` call that occurs when processing a file URL fetch with a loop that reads the file in chunks (with a `FILE_CHUNK_SIZE` constant that specifies the chunk size, which I've put at 32KB), and then calls `target.process_response_chunk` to process the chunk. The chunk is then appended to the fetch result, and once the end of the file is reached, the result is returned.
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- [X] These changes fix#21466.
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Embedder handling of prompts and alerts
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Allow embedder to allow alerts and prompts, but via constellation forwarding messages from script.
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- [ ] `./mach build-geckolib` does not report any errors
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- [ ] These changes fix#19992 (github issue number if applicable).
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Automatically provide a resource reader for tests
Fix#20710
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- [ ] `./mach build-geckolib` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes fix#20710 (github issue number if applicable).
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Made the memory cache data structure derive MallocSizeOf, along with
manual size_of() implementations in malloc_size_of.
Added a Measurable struct that acts as a container for fields size_of() can be called for.
Added a new IpcReceiver used for listening to messages from the memory profiler,
and used run_with_memory reporting to register a memory reporter in the thread.
Now when a message from the memory profiler arrives, report includes sizes of public and private http caches.
Updated test file.
