refactor StatsReporter

[Feiyang1]

No description provided.

[changeset-bot]

⚠️ No Changeset found

Latest commit: c55fe99

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

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[google-oss-bot]

Binary Size Report

Affected SDKs

• @firebase/database

  Type	Base (e558d3e)	Head (3b93635)	Diff
  browser	274 kB	274 kB	+14 B (+0.0%)
  esm2017	246 kB	246 kB	+48 B (+0.0%)
  main	277 kB	277 kB	+14 B (+0.0%)
  module	274 kB	274 kB	+14 B (+0.0%)

• @firebase/database-exp

  Type	Base (e558d3e)	Head (3b93635)	Diff
  browser	274 kB	274 kB	-83 B (-0.0%)
  esm2017	243 kB	243 kB	-49 B (-0.0%)
  main	276 kB	276 kB	-83 B (-0.0%)
  module	274 kB	274 kB	-83 B (-0.0%)

• firebase

  Type	Base (e558d3e)	Head (3b93635)	Diff
  firebase-database.js	184 kB	184 kB	-50 B (-0.0%)
  firebase.js	845 kB	845 kB	-50 B (-0.0%)

Test Logs

• Base (e558d3ea): https://github.com/firebase/firebase-js-sdk/actions/runs/603623849
• Head (3b936354): https://github.com/firebase/firebase-js-sdk/actions/runs/603801313

[google-oss-bot]

Size Analysis Report

Affected Products

No changes between base commit (e558d3e) and head commit (3b93635).

Test Logs

• Base (e558d3e): https://github.com/firebase/firebase-js-sdk/actions/runs/603623849
• Head (3b93635): https://github.com/firebase/firebase-js-sdk/actions/runs/603801313