Ensures that data and header length sent from protocol is proper sizes

Test started
Network agent enabled

url: http://127.0.0.1:8000/inspector-protocol/resources/data-xfer-resource.php?size=4&flush_header_with_x_bytes=1&wait_after_headers_packet=25&flush_every=1&wait_every_x_bytes=1&wait_duration_every_x_bytes=25
  isChunked: false
  isH2: false
  redirected: false
  headersSize: 173 -1
  receivedDataSize: 4 0
  reportedTotalSize: 177

url: http://127.0.0.1:8000/inspector-protocol/resources/data-xfer-resource.php?size=4&flush_header_with_x_bytes=1&wait_after_headers_packet=25&flush_every=1&wait_every_x_bytes=1&wait_duration_every_x_bytes=25
  isChunked: false
  isH2: false
  redirected: false
  headersSize: 173 -1
  receivedDataSize: 4 0
  reportedTotalSize: 177

url: http://127.0.0.1:8000/inspector-protocol/resources/data-xfer-resource.php?redirect=1
  isChunked: null
  isH2: null
  redirected: true
  headersSize: 0
  receivedDataSize: 0
  reportedTotalSize: 182

url: http://127.0.0.1:8000/inspector-protocol/resources/data-xfer-resource.php?cached=1
  isChunked: false
  isH2: false
  redirected: false
  headersSize: 101 -1
  receivedDataSize: 0
  reportedTotalSize: 101

url: http://127.0.0.1:8000/inspector-protocol/resources/data-xfer-resource.php?
  isChunked: false
  isH2: false
  redirected: false
  headersSize: 173 -1
  receivedDataSize: 0
  reportedTotalSize: 173