It is no longer needed: when necessary resource_path can be used in the grd. Chromium change: https://bugs.chromium.org/p/chromium/issues/detail?id=1171239 https://source.chromium.org/chromium/chromium/src/+/48b1ba996d2e019abad844fc47a5a1710b9da737 commit 48b1ba996d2e019abad844fc47a5a1710b9da737 Author: dpapad <dpapad@chromium.org> Date: Mon Feb 8 21:10:42 2021 +0000 WebUI: Remove aliasing mechanism in SharedResourcesDataSource The last few entries in the alias map were either 1) Unnecessary because the URLs were no longer used (views/resources/ case) 2) Unnecessary because they could be replaced with |resource_path| (lottie case)