New new versions of Starts/EndsWith and SplitString in net

net/http/http_response_headers.cc

Index: net/http/http_response_headers.cc
diff --git a/net/http/http_response_headers.cc b/net/http/http_response_headers.cc
index cd554e90b3a6828679d13d49f9a0eefd86325fb1..7c0c5ad2ee1465084ff85e12133529270b2d3bc3 100644
--- a/net/http/http_response_headers.cc
+++ b/net/http/http_response_headers.cc
@@ -102,8 +102,9 @@ bool ShouldUpdateHeader(const std::string::const_iterator& name_begin,
       return false;
   }
   for (size_t i = 0; i < arraysize(kNonUpdatedHeaderPrefixes); ++i) {
-    if (base::StartsWithASCII(std::string(name_begin, name_end),
-                              kNonUpdatedHeaderPrefixes[i], false))
+    if (base::StartsWith(base::StringPiece(name_begin, name_end),
+                         kNonUpdatedHeaderPrefixes[i],
+                         base::CompareCase::INSENSITIVE_ASCII))
       return false;
   }
   return true;