[WIP] Add AndroidStartup tests

[davehunt]

[netlify[bot]]

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🔨 Latest commit	1378bcfac664b9b1cabddc332b4b91b413ceb89e
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[codecov[bot]]

Codecov Report

Merging #488 (ba1eccd) into master (c052fc6) will increase coverage by 0.44%. The diff coverage is 100.00%.

:exclamation: Current head ba1eccd differs from pull request most recent head 1378bcf. Consider uploading reports for the commit 1378bcf to get more accurate results

@@            Coverage Diff             @@
##           master     #488      +/-   ##
==========================================
+ Coverage   85.42%   85.87%   +0.44%     
==========================================
  Files          14       14              
  Lines         350      361      +11     
  Branches       52       52              
==========================================
+ Hits          299      310      +11     
  Misses         46       46              
  Partials        5        5              

Impacted Files	Coverage Δ
src/awfy.js	100.00% <100.00%> (ø)
src/utils/perfherder.js	80.37% <100.00%> (+0.37%)	:arrow_up:

:mega: We’re building smart automated test selection to slash your CI/CD build times. Learn more

[davehunt]

@beatrice-acasandrei it looks like the subtests view isn't working in the deploy preview, and we perhaps have the same issue as #480 for Fenix/Focus when following the Perfherder link. Any thoughts?

• Benchmark overview with Startup: https://deploy-preview-488--firefox-performance-dashboard.netlify.app/androidGalaxyA51/benchmarks/overview?numDays=60
• Subtests view: https://deploy-preview-488--firefox-performance-dashboard.netlify.app/androidGalaxyA51/benchmarks/mozperftest-AndroidStartup?numDays=60
• Perfherder graph: https://treeherder.mozilla.org/perfherder/graphs?series=mozilla-central,4607253,1,15&timerange=5184000&series=mozilla-central,4607249,1,15