Revert of Remove some legacy versions of StartsWith and EndsWith.

components/variations/net/variations_http_header_provider.cc

Index: components/variations/net/variations_http_header_provider.cc
diff --git a/components/variations/net/variations_http_header_provider.cc b/components/variations/net/variations_http_header_provider.cc
index 583d77ac65cfc809b4276e4d8d7eef1b68ace1eb..fd7be82a312a6ad5e966eb66d122c4b312ad0809 100644
--- a/components/variations/net/variations_http_header_provider.cc
+++ b/components/variations/net/variations_http_header_provider.cc
@@ -280,8 +280,7 @@
   // is very straight forward.
   const std::string host = url.host();
   for (size_t i = 0; i < arraysize(kSuffixesToSetHeadersFor); ++i) {
-    if (base::EndsWith(host, kSuffixesToSetHeadersFor[i],
-                       base::CompareCase::INSENSITIVE_ASCII))
+    if (base::EndsWith(host, kSuffixesToSetHeadersFor[i], false))
       return true;
   }