Clean up Guava usage (CountingOutputStream)
Summary: Move the counting inline to remove its only usage
Changelog: [Internal]
Differential Revision: D55802174
This pull request was exported from Phabricator. Differential Revision: D55802174
This pull request was exported from Phabricator. Differential Revision: D55802174
This pull request was exported from Phabricator. Differential Revision: D55802174
This pull request was exported from Phabricator. Differential Revision: D55802174
This pull request was exported from Phabricator. Differential Revision: D55802174