Revert "Roll DevTools Frontend from 2a4147183191 to d8d96d5f0af2 (5 revisions)"

This reverts commit 43370549aa099419637bf99564bb81d4f2c71165.

Reason for revert: Suspect for failing "Win7 Tests (dbg)(1)" browser_tests
https://ci.chromium.org/p/chromium/builders/ci/Win7%20Tests%20%28dbg%29%281%29/83627

Original change's description:
> Roll DevTools Frontend from 2a4147183191 to d8d96d5f0af2 (5 revisions)
> 
> https://chromium.googlesource.com/devtools/devtools-frontend.git/+log/2a4147183191..d8d96d5f0af2
> 
> 2020-07-15 jacktfranklin@chromium.org Ship new ElementsBreadcrumbs to production
> 2020-07-15 wolfi@chromium.org Use FrameManager for frames section in application panel
> 2020-07-15 tvanderlippe@chromium.org Move copy_lighthouse_locale_files to third_party/lighthouse
> 2020-07-15 tvanderlippe@chromium.org Move copy_wasm_deps to sdk/wasm_source_map/BUILD.gn
> 2020-07-15 tvanderlippe@chromium.org Move embedder-scripts to front_end/BUILD.gn
> 
> If this roll has caused a breakage, revert this CL and stop the roller
> using the controls here:
> https://autoroll.skia.org/r/devtools-frontend-chromium
> Please CC devtools-waterfall-sheriff-onduty@grotations.appspotmail.com on the revert to ensure that a human
> is aware of the problem.
> 
> To report a problem with the AutoRoller itself, please file a bug:
> https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug
> 
> Documentation for the AutoRoller is here:
> https://skia.googlesource.com/buildbot/+doc/master/autoroll/README.md
> 
> Bug: chromium:1093247,chromium:1101262
> Tbr: devtools-waterfall-sheriff-onduty@grotations.appspotmail.com
> Change-Id: I493eb47f07ded2676ab3f949bf3df79096dad6e9
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2300286
> Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
> Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
> Cr-Commit-Position: refs/heads/master@{#788702}

TBR=chromium-autoroll@skia-public.iam.gserviceaccount.com,devtools-waterfall-sheriff-onduty@grotations.appspotmail.com

Change-Id: If35df14e3465658e849a11cb7ffc513893619aa9
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:1093247, chromium:1101262
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2300821
Reviewed-by: Kristi Park <kristipark@chromium.org>
Commit-Queue: Kristi Park <kristipark@chromium.org>
Cr-Commit-Position: refs/heads/master@{#788771}

• DEPS[diff]