TypeScriptify StylesSourceMapping
TypeScriptify StylesSourceMapping

Bug: chromium:1011811
Change-Id: I943d7d8360e91494aba799665cfaa896e910cb27
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2484711
Reviewed-by: Tim van der Lippe <dba8716ee7f8d16236046f74d2167cb94410f6ed@chromium.org>
Commit-Queue: Philip Pfaffe <639a645feae3653b7aaefa0387217d375f2f82ff@chromium.org>

ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend