Undo enum value removal for UMA histogram
Undo enum value removal for UMA histogram

Removing the enum value caused a but, because DevTools is relying on
the size of the map for reporting to UMA.

I will look into creating a better fix which would prevent something
like this from happening in the future.

Bug: 1278403
Change-Id: I4ce3d10a87147392374148dd3859d88cac9f1183
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/3327244
Commit-Queue: Wolfgang Beyer <573aa99bb19da47d816981118f95c945310dd3f4@chromium.org>
Auto-Submit: Wolfgang Beyer <573aa99bb19da47d816981118f95c945310dd3f4@chromium.org>
Reviewed-by: Alex Rudenko <d8d88e7d7e77f69e23d1d1432231196fb8e02a62@chromium.org>
Commit-Queue: Alex Rudenko <d8d88e7d7e77f69e23d1d1432231196fb8e02a62@chromium.org>
Reviewed-by: Simon Zünd <38944668e9e2ca98ccd0275b53370f90fa55c113@chromium.org>

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