Introduce unit test for NSS OCSP/AIA fetching

net/net.gyp

Index: net/net.gyp
diff --git a/net/net.gyp b/net/net.gyp
index 24dbbb151accaf18ad08cb9044670bea69d9be66..672961125637814d1626cf7fad0721ac35352057 100644
--- a/net/net.gyp
+++ b/net/net.gyp
@@ -1600,6 +1600,7 @@
         'http/mock_sspi_library_win.h',
         'http/transport_security_state_unittest.cc',
         'http/url_security_manager_unittest.cc',
+        'ocsp/nss_ocsp_unittest.cc',
         'proxy/dhcp_proxy_script_adapter_fetcher_win_unittest.cc',
         'proxy/dhcp_proxy_script_fetcher_factory_unittest.cc',
         'proxy/dhcp_proxy_script_fetcher_win_unittest.cc',
@@ -1869,6 +1870,13 @@
             'http/mock_gssapi_library_posix.h',
           ],
         }],
+        [ 'use_openssl == 1 or (use_glib == 0 and OS != "ios")', {
+          # Only include this test when on Posix and using NSS for
+          # cert verification or on iOS (which also uses NSS for certs).
+          'sources!': [
+            'ocsp/nss_ocsp_unittest.cc',
+          ],
+        }],
         [ 'use_openssl==1', {
             # When building for OpenSSL, we need to exclude NSS specific tests.
             # TODO(bulach): Add equivalent tests when the underlying