message: Update upload completion check logs to make them more intuitive
  No-Presubmit: True
  Cr-Commit-Position: refs/heads/master@{#34406}
diff: @@ -145,13 +145,13 @@ def _CheckFullUploadInfo(url, upload_token,
  '?additional_info=measurements',
  method='GET', headers=headers)
  - print 'Full upload info: %r.' % content
  -
  if response.status != 200:
  print 'Failed to reach the dashboard to get full upload info.'
  return False
  resp_json = json.loads(content)
  + print 'Full upload info: %s.' % json.dumps(resp_json, indent=4)
  +
  if 'measurements' in resp_json:
  measurements_cnt = len(resp_json['measurements'])
  not_completed_state_cnt = len([
  @@ -247,10 +247,13 @@ def UploadToDashboard(options):
  print 'Upload completed.'
  return 0
  - if response.status != 200 or resp_json['state'] == 'FAILED':
  - print('Upload failed with %d: %s\n\n%s' % (response.status,
  - response.reason,
  - str(resp_json)))
  + if response.status != 200:
  + print('Upload status poll failed with %d: %s' % (response.status,
  + response.reason))
  + return 1
  +
  + if resp_json['state'] == 'FAILED':
  + print 'Upload failed.'
  return 1
  print('Upload wasn\'t completed in a given time: %d seconds.' %
  