chromium-debuginfo-54.0.2840.100-1 lacks sources. Not sure when this was broken, but at least 53.0.2785.116-1 did not have the issue.
chromium-native_client-56.0.2924.87-1.20170203git163dfeb.fc25 chromium-56.0.2924.87-3.fc25 has been submitted as an update to Fedora 25. https://bodhi.fedoraproject.org/updates/FEDORA-2017-583538ec31
chromium-native_client-56.0.2924.87-1.20170203git163dfeb.fc24 chromium-56.0.2924.87-3.fc24 has been submitted as an update to Fedora 24. https://bodhi.fedoraproject.org/updates/FEDORA-2017-51d912c723
chromium-56.0.2924.87-4.el7.1 has been submitted as an update to Fedora EPEL 7. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2017-2ece46939f
chromium-56.0.2924.87-3.fc24, chromium-native_client-56.0.2924.87-1.20170203git163dfeb.fc24 has been pushed to the Fedora 24 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-51d912c723
chromium-56.0.2924.87-3.fc25, chromium-native_client-56.0.2924.87-1.20170203git163dfeb.fc25 has been pushed to the Fedora 25 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-583538ec31
chromium-56.0.2924.87-4.el7.1 has been pushed to the Fedora EPEL 7 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2017-2ece46939f
chromium-56.0.2924.87-3.fc25, chromium-native_client-56.0.2924.87-1.20170203git163dfeb.fc25 has been pushed to the Fedora 25 stable repository. If problems still persist, please make note of it in this bug report.
chromium-56.0.2924.87-3.fc24, chromium-native_client-56.0.2924.87-1.20170203git163dfeb.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.
chromium-56.0.2924.87-4.el7.1 has been pushed to the Fedora EPEL 7 stable repository. If problems still persist, please make note of it in this bug report.