[WIP] refactor: (Part I) make the ownership of URLRequestContextGetter more clear #13956
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Previously we were relying on reference counting and cleaning up network code on the IO thread, this doesn't really work well and caused use-after-free. In this new mode, the class that owns URLRequestContextGetter finishes network cleanup and destroys itself on the IO thread. This also allowed to create multiple request context getters with custom URLRequestContext, the plan is to separate the request context for media and also add a switch to create URLRequestContext based on the network service from chromium in follow up PR.
Fixes #13686
Checklist
npm test
passes