AllForms/FormStructureBrowserTest.DataDrivenHeuristics/48 has been failing flakily locally. Failure is the following:

[ RUN      ] AllForms/FormStructureBrowserTest.DataDrivenHeuristics/48
../../components/autofill/core/browser/data_driven_test.cc:86: Failure
Expected equality of these values:
  output_file_contents
    Which is: "SEARCH_TERM | q | deviantARTBrowse ArtPrints ShopT-Shirts & GearFind More ArtDaily DeviationsDiscover |  | q_1-default\nEMAIL_ADDRESS | emailAddress | Email Address |  | emailAddress_1-default\nUNKNOWN_TYPE | password | Password |  | emailAddress_1-default\nUNKNOWN_TYPE | remember_me | Stay logged in | 1 | emailAddress_1-default\nUNKNOWN_TYPE | existingAccount | Create a new Buyer Account | 0 | existingAccount_1-default\nUNKNOWN_TYPE | existingAccount | I have an existing deviantART account (email or username) | 1 | existingAccount_1-default\nEMAIL_ADDRESS | emailAddress | Email Address |  | existingAccount_1-default\nUNKNOWN_TYPE | password | Password |  | existingAccount_1-default\nUNKNOWN_TYPE | remember_me | Stay logged in | 1 | existingAccount_1-default\nUNKNOWN_TYPE | passwordNew | Password |  | existingAccount_1-default\nUNKNOWN_TYPE | passwordConfirm | Password (confirm) |  | existingAccount_1-default\nNAME_FULL | name | Full Name |  | existingAccount_1-default\nADDRESS_HOME_COUNTRY | country | Country | 0 | existingAccount_1-default\n"
  output
    Which is: "SEARCH_TERM | q | deviantARTBrowse ArtPrints ShopT-Shirts & GearFind More ArtDaily DeviationsDiscover |  | q_1-default\nEMAIL_ADDRESS | emailAddress | Email Address |  | emailAddress_1-default\nUNKNOWN_TYPE | password | Password |  | emailAddress_1-default\nUNKNOWN_TYPE | remember_me | Stay logged in | 1 | emailAddress_1-default\nUNKNOWN_TYPE | existingAccount | Create a new Buyer Account | 0 | existingAccount_1-default\nUNKNOWN_TYPE | existingAccount | I have an existing deviantART account (email or username) | 1 | existingAccount_1-default\nEMAIL_ADDRESS | emailAddress | Email Address |  | existingAccount_1-default\nUNKNOWN_TYPE | password | Password |  | existingAccount_1-default\nUNKNOWN_TYPE | remember_me | Stay logged in | 1 | existingAccount_1-default\nUNKNOWN_TYPE | passwordNew | Password |  | existingAccount_1-default\nUNKNOWN_TYPE | passwordConfirm | Password (confirm) |  | existingAccount_1-default\nNAME_FULL | name | Full Name |  | existingAccount_1-default\nADDRESS_HOME_COUNTRY | country | Country | 0 | existingAccount_1-default\nSEARCH_TERM | q | deviantARTBrowse ArtPrints ShopT-Shirts & GearFind More ArtDaily DeviationsDiscover |  | q_1-default\nEMAIL_ADDRESS | emailAddress | Email Address |  | emailAddress_1-default\nUNKNOWN_TYPE | password | Password |  | emailAddress_1-default\nUNKNOWN_TYPE | remember_me | Stay logged in | 1 | emailAddress_1-default\nUNKNOWN_TYPE | existingAccount | Create a new Buyer Account | 0 | existingAccount_1-default\nUNKNOWN_TYPE | existingAccount | I have an existing deviantART account (email or username) | 1 | existingAccount_1-default\nEMAIL_ADDRESS | emailAddress | Email Address |  | existingAccount_1-default\nUNKNOWN_TYPE | password | Password |  | existingAccount_1-default\nUNKNOWN_TYPE | remember_me | Stay logged in | 1 | existingAccount_1-default\nUNKNOWN_TYPE | passwordNew | Password |  | existingAccount_1-default\nUNKNOWN_TYPE | passwordConfirm | Password (confirm) |  | existingAccount_1-default\nNAME_FULL | name | Full Name |  | existingAccount_1-default\nADDRESS_HOME_COUNTRY | country | Country | 0 | existingAccount_1-default\n"
With diff:
@@ +1,15 @@
+SEARCH_TERM | q | deviantARTBrowse ArtPrints ShopT-Shirts & GearFind More ArtDaily DeviationsDiscover |  | q_1-default
+EMAIL_ADDRESS | emailAddress | Email Address |  | emailAddress_1-default
+UNKNOWN_TYPE | password | Password |  | emailAddress_1-default
+UNKNOWN_TYPE | remember_me | Stay logged in | 1 | emailAddress_1-default
+UNKNOWN_TYPE | existingAccount | Create a new Buyer Account | 0 | existingAccount_1-default
+UNKNOWN_TYPE | existingAccount | I have an existing deviantART account (email or username) | 1 | existingAccount_1-default
+EMAIL_ADDRESS | emailAddress | Email Address |  | existingAccount_1-default
+UNKNOWN_TYPE | password | Password |  | existingAccount_1-default
+UNKNOWN_TYPE | remember_me | Stay logged in | 1 | existingAccount_1-default
+UNKNOWN_TYPE | passwordNew | Password |  | existingAccount_1-default
+UNKNOWN_TYPE | passwordConfirm | Password (confirm) |  | existingAccount_1-default
+NAME_FULL | name | Full Name |  | existingAccount_1-default
+ADDRESS_HOME_COUNTRY | country | Country | 0 | existingAccount_1-default
 SEARCH_TERM | q | deviantARTBrowse ArtPrints ShopT-Shirts & GearFind More ArtDaily DeviationsDiscover |  | q_1-default
 EMAIL_ADDRESS | emailAddress | Email Address |  | emailAddress_1-default

Google Test trace:
../../components/autofill/core/browser/data_driven_test.cc:65: 048_register_deviantart.com.html
Stack trace:
0   ios_chrome_unittests                0x00000001072d236c base::debug::StackTrace::StackTrace() + 28
1   ios_chrome_unittests                0x0000000105321950 StackTraceGetter::CurrentStackTrace(int, int) + 64
2   ios_chrome_unittests                0x00000001053320e7 testing::internal::UnitTestImpl::CurrentOsStackTraceExceptTop(int) + 71
3   ios_chrome_unittests                0x000000010533152d testing::internal::AssertHelper::operator=(testing::Message const&) const + 125
4   ios_chrome_unittests                0x000000010b2088cf autofill::DataDrivenTest::RunOneDataDrivenTest(base::FilePath const&, base::FilePath const&, bool) + 2863
5   ios_chrome_unittests                0x000000010490e2e9 autofill::FormStructureBrowserTest_DataDrivenHeuristics_Test::TestBody() + 233

2018-06-28 17:14:46.412020+0200 ios_chrome_unittests[22247:1501702] Could not signal service com.apple.WebKit.WebContent: 113: Could not find specified service
2018-06-28 17:14:46.413452+0200 ios_chrome_unittests[22247:1501702] Could not signal service com.apple.WebKit.Networking: 113: Could not find specified service
[  FAILED  ] AllForms/FormStructureBrowserTest.DataDrivenHeuristics/48, where GetParam() = /Users/sdefresne/Library/Developer/CoreSimulator/Devices/A7D89209-4EAD-4EB1-ADE0-64724114D9C2/data/Containers/Bundle/Application/CD232B85-4E89-424C-91A1-3D45499C9939/ios_chrome_unittests.app/components/test/data/autofill/heuristics/input/048_register_deviantart.com.html (643 ms)