Closes #6553: Use SystemClock.elapsedRealtimeNanos for logElapsedTime

[grigoryk]

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Pull Request checklist

• Quality: This PR builds and passes detekt/ktlint checks (A pre-push hook is recommended)
• Tests: This PR includes thorough tests or an explanation of why it does not
• Changelog: This PR includes a changelog entry or does not need one
• Accessibility: The code in this PR follows accessibility best practices or does not include any user facing features

After merge

• Milestone: Make sure issues closed by this pull request are added to the milestone of the version currently in development.
• Breaking Changes: If this is a breaking change, please push a draft PR on Reference Browser to address the breaking issues.

[codecov]

Codecov Report

Merging #6801 into master will decrease coverage by 0.05%.
The diff coverage is 0.00%.

@@             Coverage Diff              @@
##             master    #6801      +/-   ##
============================================
- Coverage     77.52%   77.46%   -0.06%     
- Complexity     4629     4659      +30     
============================================
  Files           620      617       -3     
  Lines         22803    22802       -1     
  Branches       3345     3369      +24     
============================================
- Hits          17677    17663      -14     
- Misses         3742     3760      +18     
+ Partials       1384     1379       -5     

Impacted Files	Coverage Δ	Complexity Δ
...va/mozilla/components/support/utils/Performance.kt	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...lla/components/support/migration/GeckoMigration.kt	71.42% <0.00%> (-3.58%)	3.00% <0.00%> (-1.00%)
...bar/provider/BookmarksStorageSuggestionProvider.kt
...re/awesomebar/provider/SearchSuggestionProvider.kt
...ozilla/components/lib/state/ext/StoreExtensions.kt
...rc/main/java/mozilla/components/lib/state/Store.kt
...va/mozilla/components/lib/state/helpers/Helpers.kt
...awesomebar/provider/ClipboardSuggestionProvider.kt
...main/java/mozilla/components/lib/state/ext/View.kt
...mponents/lib/state/internal/ReducerChainBuilder.kt
... and 14 more

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[csadilek]

⏲️

[grigoryk]

bors r=csadilek

[bors]

Build succeeded:

• complete-push