9 files declare their use of Process in Zircon Profile 8

AbstractProcessTest.php in vendor/symfony/process/Tests/AbstractProcessTest.php

ProcessFailedException.php in vendor/symfony/process/Exception/ProcessFailedException.php

ProcessHelper.php in vendor/symfony/console/Helper/ProcessHelper.php

ProcessHelperTest.php in vendor/symfony/console/Tests/Helper/ProcessHelperTest.php

ProcessInSigchildEnvironment.php in vendor/symfony/process/Tests/ProcessInSigchildEnvironment.php

ProcessTimedOutException.php in vendor/symfony/process/Exception/ProcessTimedOutException.php

SimpleProcessTest.php in vendor/symfony/process/Tests/SimpleProcessTest.php

UnixPipes.php in vendor/symfony/process/Pipes/UnixPipes.php

WindowsPipes.php in vendor/symfony/process/Pipes/WindowsPipes.php