Replace for loops with |arraysize| with for each loops

components/autofill/core/browser/autofill_merge_unittest.cc

Index: components/autofill/core/browser/autofill_merge_unittest.cc
diff --git a/components/autofill/core/browser/autofill_merge_unittest.cc b/components/autofill/core/browser/autofill_merge_unittest.cc
index dfa93142527c1beb8c0671749aad8b99e208bc94..f0ba14067dbc3c5465f4bef183c67f2b7cc772de 100644
--- a/components/autofill/core/browser/autofill_merge_unittest.cc
+++ b/components/autofill/core/browser/autofill_merge_unittest.cc
@@ -91,8 +91,7 @@ std::string SerializeProfiles(const std::vector<AutofillProfile*>& profiles) {
   for (size_t i = 0; i < profiles.size(); ++i) {
     result += kProfileSeparator;
     result += "\n";
-    for (size_t j = 0; j < arraysize(kProfileFieldTypes); ++j) {
-      ServerFieldType type = kProfileFieldTypes[j];
+    for (const ServerFieldType& type : kProfileFieldTypes) {
       base::string16 value = profiles[i]->GetRawInfo(type);
       result += AutofillType(type).ToString();
       result += kFieldSeparator;