Roll expect_tests to 5348408

bootstrap/deps.pyl

 # See README.md, there is a section about this file.
 #vim: ft=python:
 {
   'wheel': {
     'version': '0.24.0',
     'build': '0',
     'gs': 'c02262299489646af253067e8136c060a93572e3.tar.gz',
   },
 
   'argcomplete': {
@@ skipping 36 matching lines @@
     'gs': '35b5e8932cebabc7c3a0fd41cf9e8cd30a4be8ae.tar.gz',
   },
   'enum34': {
     'version': '1.0.4',
     'build': '0',
     'gs': '10b77f1db47e54abbc4ce6f61df542590b9ad972.tar.gz',
     'implicit': True,  # Required by cryptography
   },
   # expect_tests is maintained by Chrome Infra
   'expect_tests': {
-    'version': '0.3.20',
+    'version': '0.3.21',
     'build': '0',
     'repo': 'infra/testing/expect_tests',
-    'rev': '96c03ada3c6eef724c4a36402f8d4bcdc831fc91',
+    'rev': '53484081e87817dd8c9dcf0032aa547ca58607bb',
   },
   'google_api_python_client': {
     'version': '1.4.2',
     'build': '0',
     'repo': 'external/github.com/google/google-api-python-client',
     'rev': 'd83246e69b22f084d1ae92da5897572a4a4eb03d',
   },
   'httplib2': {
     'version': '0.9',
     'build': '0',
@@ skipping 152 matching lines @@
     'rev': '6581ebfe7e1f95b6f2e193723a9e0e1f02337851',
   },
   'WebOb': {
     'version': '1.4.1dev',
     'build': '0',
     'repo': 'external/github.com/Pylons/webob',
     'rev': 'ec67aba9d62d0e32dc5154c940a2214441bf0a9e',
     # 'implicit': True,  # Required by webtest
   },
 }