Revert "Update third_party/devtools-frontend 879d97b05d..ecbd8964b9"

This reverts commit 34b3dbb4.

Reason for revert: Believe this is breaking compile no-op builds. Suspect https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/1893080 in the devtools repo. Compile no-op first ninja explain output is:

ninja explain: output resources/inspector/product_registry_impl/product_registry_impl_module.js doesn't exist

Original change's description:
> Update third_party/devtools-frontend 879d97b05d..ecbd8964b9
> 
> https://chromium.googlesource.com/devtools/devtools-frontend/+log/879d97b05d..ecbd8964b9
> 
> TBR=sigurds@chromium.org
> 
> Change-Id: Ia5c6dbd17ca8f3d2c86770d87823bd32aa5e48c6
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1901071
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Commit-Queue: Yang Guo <yangguo@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#712974}

TBR=yangguo@chromium.org,sigurds@chromium.org

Change-Id: Ic71f3cef4bd9a97a228f68212c845e2a5fb72bff
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1899743Reviewed-by: Joshua Pawlicki <waffles@chromium.org>
Commit-Queue: Joshua Pawlicki <waffles@chromium.org>
Cr-Commit-Position: refs/heads/master@{#712989}

DEPS

@@ -243,7 +243,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling devtools-frontend
   # and whatever else without interference from each other.
-  'devtools_frontend_revision': 'ecbd8964b9376b874bf2e32ef1efa2ceffa4a527',
+  'devtools_frontend_revision': '879d97b05dfe9f26ede820b0296b125d4a68e5ff',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling libprotobuf-mutator
   # and whatever else without interference from each other.