[web] Filter non-fatal Chromium D-Bus error lines from Chrome stderr - #190669
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[web] Filter non-fatal Chromium D-Bus error lines from Chrome stderr#190669mdebbar wants to merge 5 commits into
mdebbar wants to merge 5 commits into
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This pull request configures the DBUS_SESSION_BUS_ADDRESS environment variable to unix:path=/dev/null when launching Chromium on Linux if it is missing, empty, or set to /dev/null. Feedback on the changes suggests refactoring to avoid duplication: specifically, removing the redundant kChromeLinuxArgs constant in the tests in favor of kChromeArgs, and extracting the duplicated environment setup logic in chrome.dart into a shared private helper getter.
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Description
This PR updates the Chrome launcher environment setup in
flutter_tools,devicelab, andweb_ui(felt) on Linux.When running headless Chrome tests in a Linux container or VM without a desktop environment, Chromium attempts to connect to the D-Bus system daemon (for things like desktop notifications and system themes) and prints benign but annoying error logs to
stderrwhen it fails (e.g.ERROR:dbus/bus.cc,Failed to connect to the bus).This PR filters out these non-fatal D-Bus connection error messages emitted by Chromium. This follows the industry standard pattern used by other open source projects to filter out stderr noise in E2E tests (e.g., exocortex).
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