diff --git a/chrome/browser/ui/android/autofill/autofill_dialog_controller_android.cc b/chrome/browser/ui/android/autofill/autofill_dialog_controller_android.cc
index 5db1d3d289f54..90db85407ddeb 100644
--- a/chrome/browser/ui/android/autofill/autofill_dialog_controller_android.cc
+++ b/chrome/browser/ui/android/autofill/autofill_dialog_controller_android.cc
@@ -115,14 +115,10 @@ void FillOutputForSectionWithComparator(
                  g_browser_process->GetApplicationLocale());
 
   std::vector<ServerFieldType> types = common::TypesFromInputs(inputs);
-  form_structure.FillFields(
-      types,
-      compare,
-      get_info,
-      section == SECTION_CC_BILLING
-          ? full_wallet->billing_address()->language_code()
-          : full_wallet->shipping_address()->language_code(),
-      g_browser_process->GetApplicationLocale());
+  form_structure.FillFields(types,
+                            compare,
+                            get_info,
+                            g_browser_process->GetApplicationLocale());
 }
 
 void FillOutputForSection(
@@ -349,7 +345,6 @@ void AutofillDialogControllerAndroid::Show() {
         common::TypesFromInputs(inputs),
         base::Bind(common::ServerTypeMatchesField, SECTION_SHIPPING),
         base::Bind(NullGetInfo),
-        std::string(),
         g_browser_process->GetApplicationLocale());
   }
 
diff --git a/chrome/browser/ui/autofill/autofill_dialog_controller_impl.cc b/chrome/browser/ui/autofill/autofill_dialog_controller_impl.cc
index 86570836f18b2..f235881990ab9 100644
--- a/chrome/browser/ui/autofill/autofill_dialog_controller_impl.cc
+++ b/chrome/browser/ui/autofill/autofill_dialog_controller_impl.cc
@@ -839,7 +839,6 @@ void AutofillDialogControllerImpl::Show() {
       RequestedTypesForSection(SECTION_SHIPPING),
       base::Bind(common::ServerTypeMatchesField, SECTION_SHIPPING),
       base::Bind(NullGetInfo),
-      std::string(),
       g_browser_process->GetApplicationLocale());
 
   transaction_amount_ = form_structure_.GetUniqueValue(
diff --git a/chrome/browser/ui/autofill/data_model_wrapper.cc b/chrome/browser/ui/autofill/data_model_wrapper.cc
index ebb79a2a6f066..00cbbfa09093e 100644
--- a/chrome/browser/ui/autofill/data_model_wrapper.cc
+++ b/chrome/browser/ui/autofill/data_model_wrapper.cc
@@ -91,7 +91,6 @@ bool DataModelWrapper::FillFormStructure(
       types,
       compare,
       base::Bind(&DataModelWrapper::GetInfo, base::Unretained(this)),
-      GetLanguageCode(),
       g_browser_process->GetApplicationLocale());
 }
 
diff --git a/components/autofill/core/browser/autofill_field.cc b/components/autofill/core/browser/autofill_field.cc
index c2a744203af23..3fec668f3c76a 100644
--- a/components/autofill/core/browser/autofill_field.cc
+++ b/components/autofill/core/browser/autofill_field.cc
@@ -15,12 +15,8 @@
 #include "components/autofill/core/browser/phone_number.h"
 #include "components/autofill/core/browser/state_names.h"
 #include "grit/components_strings.h"
-#include "third_party/libaddressinput/src/cpp/include/libaddressinput/address_data.h"
-#include "third_party/libaddressinput/src/cpp/include/libaddressinput/address_formatter.h"
 #include "ui/base/l10n/l10n_util.h"
 
-using ::i18n::addressinput::AddressData;
-using ::i18n::addressinput::GetStreetAddressLinesAsSingleLine;
 using base::ASCIIToUTF16;
 using base::StringToInt;
 
@@ -358,23 +354,18 @@ bool FillMonthControl(const base::string16& value, FormFieldData* field) {
   return true;
 }
 
-// Fills |field| with the street address in |value|. Translates newlines into
+// Fills |field| with the street address in |value|.  Translates newlines into
 // equivalent separators when necessary, i.e. when filling a single-line field.
-// The separators depend on |address_language_code|.
 void FillStreetAddress(const base::string16& value,
-                       const std::string& address_language_code,
                        FormFieldData* field) {
   if (field->form_control_type == "textarea") {
     field->value = value;
     return;
   }
 
-  AddressData address_data;
-  address_data.language_code = address_language_code;
-  base::SplitString(base::UTF16ToUTF8(value), '\n', &address_data.address_line);
-  std::string line;
-  GetStreetAddressLinesAsSingleLine(address_data, &line);
-  field->value = base::UTF8ToUTF16(line);
+  const base::string16& separator =
+      l10n_util::GetStringUTF16(IDS_AUTOFILL_ADDRESS_LINE_SEPARATOR);
+  base::ReplaceChars(value, base::ASCIIToUTF16("\n"), separator, &field->value);
 }
 
 std::string Hash32Bit(const std::string& str) {
@@ -471,7 +462,6 @@ bool AutofillField::IsFieldFillable() const {
 // static
 bool AutofillField::FillFormField(const AutofillField& field,
                                   const base::string16& value,
-                                  const std::string& address_language_code,
                                   const std::string& app_locale,
                                   FormFieldData* field_data) {
   AutofillType type = field.Type();
@@ -484,7 +474,7 @@ bool AutofillField::FillFormField(const AutofillField& field,
   } else if (field_data->form_control_type == "month") {
     return FillMonthControl(value, field_data);
   } else if (type.GetStorableType() == ADDRESS_HOME_STREET_ADDRESS) {
-    FillStreetAddress(value, address_language_code, field_data);
+    FillStreetAddress(value, field_data);
     return true;
   }
 
diff --git a/components/autofill/core/browser/autofill_field.h b/components/autofill/core/browser/autofill_field.h
index b810e76010cef..f0b1e7ef2b35e 100644
--- a/components/autofill/core/browser/autofill_field.h
+++ b/components/autofill/core/browser/autofill_field.h
@@ -65,13 +65,11 @@ class AutofillField : public FormFieldData {
   void set_default_value(const std::string& value) { default_value_ = value; }
   const std::string& default_value() const { return default_value_; }
 
-  // Set |field_data|'s value to |value|. Uses |field|, |address_language_code|,
-  // and |app_locale| as hints when filling exceptional cases like phone number
-  // values and <select> fields. Returns |true| if the field has been filled,
-  // |false| otherwise.
+  // Set |field_data|'s value to |value|.  Uses |field| and |app_locale| as
+  // hints when filling exceptional cases like phone number values and <select>
+  // fields. Returns |true| if the field has been filled, |false| otherwise.
   static bool FillFormField(const AutofillField& field,
                             const base::string16& value,
-                            const std::string& address_language_code,
                             const std::string& app_locale,
                             FormFieldData* field_data);
 
diff --git a/components/autofill/core/browser/autofill_field_unittest.cc b/components/autofill/core/browser/autofill_field_unittest.cc
index 9d0f3ac3ae77f..b7451d23f1bac 100644
--- a/components/autofill/core/browser/autofill_field_unittest.cc
+++ b/components/autofill/core/browser/autofill_field_unittest.cc
@@ -2,18 +2,16 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "components/autofill/core/browser/autofill_field.h"
-
 #include "base/format_macros.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
+#include "components/autofill/core/browser/autofill_field.h"
 #include "components/autofill/core/browser/autofill_type.h"
 #include "components/autofill/core/browser/field_types.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using base::ASCIIToUTF16;
-using base::UTF8ToUTF16;
 
 namespace autofill {
 namespace {
@@ -126,13 +124,11 @@ TEST(AutofillFieldTest, FillPhoneNumber) {
   field.SetHtmlType(HTML_TYPE_TEL_LOCAL_PREFIX, HtmlFieldMode());
 
   // Fill with a non-phone number; should fill normally.
-  AutofillField::FillFormField(
-      field, ASCIIToUTF16("Oh hai"), "en-US", "en-US", &field);
+  AutofillField::FillFormField(field, ASCIIToUTF16("Oh hai"), "en-US", &field);
   EXPECT_EQ(ASCIIToUTF16("Oh hai"), field.value);
 
   // Fill with a phone number; should fill just the prefix.
-  AutofillField::FillFormField(
-      field, ASCIIToUTF16("5551234"), "en-US", "en-US", &field);
+  AutofillField::FillFormField(field, ASCIIToUTF16("5551234"), "en-US", &field);
   EXPECT_EQ(ASCIIToUTF16("555"), field.value);
 
   // Now reset the type, and set a max-length instead.
@@ -141,8 +137,7 @@ TEST(AutofillFieldTest, FillPhoneNumber) {
   field.max_length = 4;
 
   // Fill with a phone-number; should fill just the suffix.
-  AutofillField::FillFormField(
-      field, ASCIIToUTF16("5551234"), "en-US", "en-US", &field);
+  AutofillField::FillFormField(field, ASCIIToUTF16("5551234"), "en-US", &field);
   EXPECT_EQ(ASCIIToUTF16("1234"), field.value);
 }
 
@@ -160,8 +155,8 @@ TEST(AutofillFieldTest, FillSelectControlByValue) {
     field.option_contents[i] = ASCIIToUTF16(base::StringPrintf("%" PRIuS, i));
   }
 
-  AutofillField::FillFormField(
-      field, ASCIIToUTF16("Meenie"), "en-US", "en-US", &field);
+  AutofillField::FillFormField(field, ASCIIToUTF16("Meenie"), "en-US",
+                               &field);
   EXPECT_EQ(ASCIIToUTF16("Meenie"), field.value);
 }
 
@@ -179,8 +174,8 @@ TEST(AutofillFieldTest, FillSelectControlByContents) {
     field.option_values[i] = ASCIIToUTF16(base::StringPrintf("%" PRIuS, i));
   }
 
-  AutofillField::FillFormField(
-      field, ASCIIToUTF16("Miney"), "en-US", "en-US", &field);
+  AutofillField::FillFormField(field, ASCIIToUTF16("Miney"), "en-US",
+                               &field);
   EXPECT_EQ(ASCIIToUTF16("2"), field.value);  // Corresponds to "Miney".
 }
 
@@ -193,8 +188,7 @@ TEST(AutofillFieldTest, FillSelectControlWithFullCountryNames) {
       base::string16());
   field.set_heuristic_type(ADDRESS_HOME_COUNTRY);
 
-  AutofillField::FillFormField(
-      field, ASCIIToUTF16("CA"), "en-US", "en-US", &field);
+  AutofillField::FillFormField(field, ASCIIToUTF16("CA"), "en-US", &field);
   EXPECT_EQ(ASCIIToUTF16("Canada"), field.value);
 }
 
@@ -207,8 +201,7 @@ TEST(AutofillFieldTest, FillSelectControlWithAbbreviatedCountryNames) {
       base::string16());
   field.set_heuristic_type(ADDRESS_HOME_COUNTRY);
 
-  AutofillField::FillFormField(
-      field, ASCIIToUTF16("Canada"), "en-US", "en-US", &field);
+  AutofillField::FillFormField(field, ASCIIToUTF16("Canada"), "en-US", &field);
   EXPECT_EQ(ASCIIToUTF16("CA"), field.value);
 }
 
@@ -221,8 +214,7 @@ TEST(AutofillFieldTest, FillSelectControlWithFullStateNames) {
       base::string16());
   field.set_heuristic_type(ADDRESS_HOME_STATE);
 
-  AutofillField::FillFormField(
-      field, ASCIIToUTF16("CA"), "en-US", "en-US", &field);
+  AutofillField::FillFormField(field, ASCIIToUTF16("CA"), "en-US", &field);
   EXPECT_EQ(ASCIIToUTF16("California"), field.value);
 }
 
@@ -235,8 +227,8 @@ TEST(AutofillFieldTest, FillSelectControlWithAbbreviateStateNames) {
       base::string16());
   field.set_heuristic_type(ADDRESS_HOME_STATE);
 
-  AutofillField::FillFormField(
-      field, ASCIIToUTF16("California"), "en-US", "en-US", &field);
+  AutofillField::FillFormField(field, ASCIIToUTF16("California"), "en-US",
+                               &field);
   EXPECT_EQ(ASCIIToUTF16("CA"), field.value);
 }
 
@@ -250,8 +242,8 @@ TEST(AutofillFieldTest, FillSelectControlWithInexactFullStateNames) {
         base::string16());
     field.set_heuristic_type(ADDRESS_HOME_STATE);
 
-    AutofillField::FillFormField(
-        field, ASCIIToUTF16("California"), "en-US", "en-US", &field);
+    AutofillField::FillFormField(field, ASCIIToUTF16("California"), "en-US",
+                                 &field);
     EXPECT_EQ(ASCIIToUTF16("CA - California"), field.value);
   }
 
@@ -265,8 +257,8 @@ TEST(AutofillFieldTest, FillSelectControlWithInexactFullStateNames) {
         base::string16());
     field.set_heuristic_type(ADDRESS_HOME_STATE);
 
-    AutofillField::FillFormField(
-        field, ASCIIToUTF16("Virginia"), "en-US", "en-US", &field);
+    AutofillField::FillFormField(field, ASCIIToUTF16("Virginia"), "en-US",
+                                 &field);
     EXPECT_EQ(ASCIIToUTF16("VA - Virginia"), field.value);
   }
 
@@ -282,8 +274,8 @@ TEST(AutofillFieldTest, FillSelectControlWithInexactFullStateNames) {
         base::string16());
     field.set_heuristic_type(ADDRESS_HOME_STATE);
 
-    AutofillField::FillFormField(
-        field, ASCIIToUTF16("Virginia"), "en-US", "en-US", &field);
+    AutofillField::FillFormField(field, ASCIIToUTF16("Virginia"), "en-US",
+                                 &field);
     EXPECT_EQ(ASCIIToUTF16("WV - West Virginia"), field.value);
   }
 
@@ -299,8 +291,8 @@ TEST(AutofillFieldTest, FillSelectControlWithInexactFullStateNames) {
         base::string16());
     field.set_heuristic_type(ADDRESS_HOME_STATE);
 
-    AutofillField::FillFormField(
-        field, ASCIIToUTF16("North Carolina"), "en-US", "en-US", &field);
+    AutofillField::FillFormField(field, ASCIIToUTF16("North Carolina"), "en-US",
+                                 &field);
     EXPECT_EQ(ASCIIToUTF16("North Carolina."), field.value);
   }
 }
@@ -315,8 +307,8 @@ TEST(AutofillFieldTest, FillSelectControlWithInexactAbbreviations) {
         base::string16());
     field.set_heuristic_type(ADDRESS_HOME_STATE);
 
-    AutofillField::FillFormField(
-        field, ASCIIToUTF16("CA"), "en-US", "en-US", &field);
+    AutofillField::FillFormField(field, ASCIIToUTF16("CA"), "en-US",
+                                 &field);
     EXPECT_EQ(ASCIIToUTF16("CA - California"), field.value);
   }
 
@@ -329,8 +321,8 @@ TEST(AutofillFieldTest, FillSelectControlWithInexactAbbreviations) {
         base::string16());
     field.set_heuristic_type(ADDRESS_HOME_STATE);
 
-    AutofillField::FillFormField(
-        field, ASCIIToUTF16("NC"), "en-US", "en-US", &field);
+    AutofillField::FillFormField(field, ASCIIToUTF16("NC"), "en-US",
+                                 &field);
     EXPECT_EQ(base::string16(), field.value);
   }
 }
@@ -345,18 +337,15 @@ TEST(AutofillFieldTest, FillSelectControlWithNumericMonth) {
   field.set_heuristic_type(CREDIT_CARD_EXP_MONTH);
 
   // Try with a leading zero.
-  AutofillField::FillFormField(
-      field, ASCIIToUTF16("03"), "en-US", "en-US", &field);
+  AutofillField::FillFormField(field, ASCIIToUTF16("03"), "en-US", &field);
   EXPECT_EQ(ASCIIToUTF16("03"), field.value);
 
   // Try without a leading zero.
-  AutofillField::FillFormField(
-      field, ASCIIToUTF16("4"), "en-US", "en-US", &field);
+  AutofillField::FillFormField(field, ASCIIToUTF16("4"), "en-US", &field);
   EXPECT_EQ(ASCIIToUTF16("04"), field.value);
 
   // Try a two-digit month.
-  AutofillField::FillFormField(
-      field, ASCIIToUTF16("11"), "en-US", "en-US", &field);
+  AutofillField::FillFormField(field, ASCIIToUTF16("11"), "en-US", &field);
   EXPECT_EQ(ASCIIToUTF16("11"), field.value);
 }
 
@@ -371,14 +360,13 @@ TEST(AutofillFieldTest, FillSelectControlWithAbbreviatedMonthName) {
       base::string16());
   field.set_heuristic_type(CREDIT_CARD_EXP_MONTH);
 
-  AutofillField::FillFormField(
-      field, ASCIIToUTF16("04"), "en-US", "en-US", &field);
+  AutofillField::FillFormField(field, ASCIIToUTF16("04"), "en-US", &field);
   EXPECT_EQ(ASCIIToUTF16("Apr"), field.value);
 }
 
 TEST(AutofillFieldTest, FillSelectControlWithFullMonthName) {
   const char* const kMonthsFull[] = {
-    "January","February", "March", "April", "May", "June",
+    "January", "February", "March", "April", "May", "June",
     "July", "August", "September", "October", "November", "December",
   };
   AutofillField field(
@@ -386,8 +374,7 @@ TEST(AutofillFieldTest, FillSelectControlWithFullMonthName) {
       base::string16());
   field.set_heuristic_type(CREDIT_CARD_EXP_MONTH);
 
-  AutofillField::FillFormField(
-      field, ASCIIToUTF16("04"), "en-US", "en-US", &field);
+  AutofillField::FillFormField(field, ASCIIToUTF16("04"), "en-US", &field);
   EXPECT_EQ(ASCIIToUTF16("April"), field.value);
 }
 
@@ -400,8 +387,7 @@ TEST(AutofillFieldTest, FillSelectControlWithNumericMonthSansLeadingZero) {
       base::string16());
   field.set_heuristic_type(CREDIT_CARD_EXP_MONTH);
 
-  AutofillField::FillFormField(
-      field, ASCIIToUTF16("04"), "en-US", "en-US", &field);
+  AutofillField::FillFormField(field, ASCIIToUTF16("04"), "en-US", &field);
   EXPECT_EQ(ASCIIToUTF16("4"), field.value);
 }
 
@@ -413,8 +399,7 @@ TEST(AutofillFieldTest, FillSelectControlWithTwoDigitCreditCardYear) {
                       base::string16());
   field.set_heuristic_type(CREDIT_CARD_EXP_2_DIGIT_YEAR);
 
-  AutofillField::FillFormField(
-      field, ASCIIToUTF16("2017"), "en-US", "en-US", &field);
+  AutofillField::FillFormField(field, ASCIIToUTF16("2017"), "en-US", &field);
   EXPECT_EQ(ASCIIToUTF16("17"), field.value);
 }
 
@@ -429,23 +414,22 @@ TEST(AutofillFieldTest, FillSelectControlWithCreditCardType) {
   field.set_heuristic_type(CREDIT_CARD_TYPE);
 
   // Normal case:
-  AutofillField::FillFormField(
-      field, ASCIIToUTF16("Visa"), "en-US", "en-US", &field);
+  AutofillField::FillFormField(field, ASCIIToUTF16("Visa"), "en-US", &field);
   EXPECT_EQ(ASCIIToUTF16("Visa"), field.value);
 
   // Filling should be able to handle intervening whitespace:
-  AutofillField::FillFormField(
-      field, ASCIIToUTF16("MasterCard"), "en-US", "en-US", &field);
+  AutofillField::FillFormField(field, ASCIIToUTF16("MasterCard"), "en-US",
+                               &field);
   EXPECT_EQ(ASCIIToUTF16("Master Card"), field.value);
 
   // American Express is sometimes abbreviated as AmEx:
-  AutofillField::FillFormField(
-      field, ASCIIToUTF16("American Express"), "en-US", "en-US", &field);
+  AutofillField::FillFormField(field, ASCIIToUTF16("American Express"), "en-US",
+                               &field);
   EXPECT_EQ(ASCIIToUTF16("AmEx"), field.value);
 
   // Case insensitivity:
-  AutofillField::FillFormField(
-      field, ASCIIToUTF16("Discover"), "en-US", "en-US", &field);
+  AutofillField::FillFormField(field, ASCIIToUTF16("Discover"), "en-US",
+                               &field);
   EXPECT_EQ(ASCIIToUTF16("discover"), field.value);
 }
 
@@ -454,18 +438,15 @@ TEST(AutofillFieldTest, FillMonthControl) {
   field.form_control_type = "month";
 
   // Try a month with two digits.
-  AutofillField::FillFormField(
-      field, ASCIIToUTF16("12/2017"), "en-US", "en-US", &field);
+  AutofillField::FillFormField(field, ASCIIToUTF16("12/2017"), "en-US", &field);
   EXPECT_EQ(ASCIIToUTF16("2017-12"), field.value);
 
   // Try a month with a leading zero.
-  AutofillField::FillFormField(
-      field, ASCIIToUTF16("03/2019"), "en-US", "en-US", &field);
+  AutofillField::FillFormField(field, ASCIIToUTF16("03/2019"), "en-US", &field);
   EXPECT_EQ(ASCIIToUTF16("2019-03"), field.value);
 
   // Try a month without a leading zero.
-  AutofillField::FillFormField(
-      field, ASCIIToUTF16("4/2018"), "en-US", "en-US", &field);
+  AutofillField::FillFormField(field, ASCIIToUTF16("4/2018"), "en-US", &field);
   EXPECT_EQ(ASCIIToUTF16("2018-04"), field.value);
 }
 
@@ -475,13 +456,8 @@ TEST(AutofillFieldTest, FillStreetAddressTextArea) {
 
   base::string16 value = ASCIIToUTF16("123 Fake St.\n"
                                       "Apt. 42");
-  AutofillField::FillFormField(field, value, "en-US", "en-US", &field);
+  AutofillField::FillFormField(field, value, "en-US", &field);
   EXPECT_EQ(value, field.value);
-
-  base::string16 ja_value = UTF8ToUTF16("桜丘町26-1\n"
-                                        "セルリアンタワー6階");
-  AutofillField::FillFormField(field, ja_value, "ja-JP", "en-US", &field);
-  EXPECT_EQ(ja_value, field.value);
 }
 
 TEST(AutofillFieldTest, FillStreetAddressTextField) {
@@ -491,16 +467,8 @@ TEST(AutofillFieldTest, FillStreetAddressTextField) {
 
   base::string16 value = ASCIIToUTF16("123 Fake St.\n"
                                       "Apt. 42");
-  AutofillField::FillFormField(field, value, "en-US", "en-US", &field);
+  AutofillField::FillFormField(field, value, "en-US", &field);
   EXPECT_EQ(ASCIIToUTF16("123 Fake St., Apt. 42"), field.value);
-
-  AutofillField::FillFormField(field,
-                               UTF8ToUTF16("桜丘町26-1\n"
-                                           "セルリアンタワー6階"),
-                               "ja-JP",
-                               "en-US",
-                               &field);
-  EXPECT_EQ(UTF8ToUTF16("桜丘町26-1セルリアンタワー6階"), field.value);
 }
 
 }  // namespace
diff --git a/components/autofill/core/browser/autofill_manager.cc b/components/autofill/core/browser/autofill_manager.cc
index 77fc9463a03c6..cb4be9320a3c4 100644
--- a/components/autofill/core/browser/autofill_manager.cc
+++ b/components/autofill/core/browser/autofill_manager.cc
@@ -550,12 +550,9 @@ void AutofillManager::FillOrPreviewForm(
   FormData result = form;
 
   base::string16 profile_full_name;
-  std::string profile_language_code;
   if (!is_credit_card) {
     profile_full_name = data_model->GetInfo(
         AutofillType(NAME_FULL), app_locale_);
-    profile_language_code =
-        static_cast<const AutofillProfile*>(data_model)->language_code();
   }
 
   // If the relevant section is auto-filled, we should fill |field| but not the
@@ -566,11 +563,8 @@ void AutofillManager::FillOrPreviewForm(
       if ((*iter) == field) {
         base::string16 value = data_model->GetInfoForVariant(
             autofill_field->Type(), variant, app_locale_);
-        if (AutofillField::FillFormField(*autofill_field,
-                                         value,
-                                         profile_language_code,
-                                         app_locale_,
-                                         &(*iter))) {
+        if (AutofillField::FillFormField(
+            *autofill_field, value, app_locale_, &(*iter))) {
           // Mark the cached field as autofilled, so that we can detect when a
           // user edits an autofilled field (for metrics).
           autofill_field->is_autofilled = true;
@@ -626,11 +620,8 @@ void AutofillManager::FillOrPreviewForm(
           (result.fields[i] == field ||
            result.fields[i].form_control_type == "select-one" ||
            result.fields[i].value.empty());
-      if (AutofillField::FillFormField(*cached_field,
-                                       value,
-                                       profile_language_code,
-                                       app_locale_,
-                                       &result.fields[i])) {
+      if (AutofillField::FillFormField(
+          *cached_field, value, app_locale_, &result.fields[i])) {
         // Mark the cached field as autofilled, so that we can detect when a
         // user edits an autofilled field (for metrics).
         form_structure->field(i)->is_autofilled = true;
diff --git a/components/autofill/core/browser/form_structure.cc b/components/autofill/core/browser/form_structure.cc
index f31fbc6874d7d..a01d91547bcf8 100644
--- a/components/autofill/core/browser/form_structure.cc
+++ b/components/autofill/core/browser/form_structure.cc
@@ -1107,7 +1107,6 @@ bool FormStructure::FillFields(
     const std::vector<ServerFieldType>& types,
     const InputFieldComparator& matches,
     const base::Callback<base::string16(const AutofillType&)>& get_info,
-    const std::string& address_language_code,
     const std::string& app_locale) {
   bool filled_something = false;
   for (size_t i = 0; i < field_count(); ++i) {
@@ -1115,7 +1114,6 @@ bool FormStructure::FillFields(
       if (matches.Run(types[j], *field(i))) {
         AutofillField::FillFormField(*field(i),
                                      get_info.Run(field(i)->Type()),
-                                     address_language_code,
                                      app_locale,
                                      field(i));
         filled_something = true;
diff --git a/components/autofill/core/browser/form_structure.h b/components/autofill/core/browser/form_structure.h
index cead91f3b6153..7a9d915782a98 100644
--- a/components/autofill/core/browser/form_structure.h
+++ b/components/autofill/core/browser/form_structure.h
@@ -137,13 +137,11 @@ class FormStructure {
       InputFieldComparator;
 
   // Fills in |fields_| that match |types| (via |matches|) with info from
-  // |get_info|. Uses |address_language_code| to determine line separators when
-  // collapsing street address lines into a single-line input text field.
+  // |get_info|.
   bool FillFields(
       const std::vector<ServerFieldType>& types,
       const InputFieldComparator& matches,
       const base::Callback<base::string16(const AutofillType&)>& get_info,
-      const std::string& address_language_code,
       const std::string& app_locale);
 
   // Returns the values that can be filled into the form structure for the