Add capability to simple http server to bound Set-Cookie to URLs.

ios/web/public/test/http_server_util.mm

Index: ios/web/public/test/http_server_util.mm
diff --git a/ios/web/public/test/http_server_util.mm b/ios/web/public/test/http_server_util.mm
index ed9ae78988698131b581b4c5c9cf227aa0742a5b..b6ca43700d66968d1c841977f71de76080b78c0c 100644
--- a/ios/web/public/test/http_server_util.mm
+++ b/ios/web/public/test/http_server_util.mm
@@ -17,10 +17,9 @@ void SetUpSimpleHttpServer(const std::map<GURL, std::string>& responses) {
   SetUpHttpServer(base::MakeUnique<HtmlResponseProvider>(responses));
 }
 
-void SetUpSimpleHttpServerWithSetCookie(
-    const std::map<GURL, std::string>& responses,
-    const std::string& cookie) {
-  SetUpHttpServer(base::MakeUnique<HtmlResponseProvider>(responses, cookie));
+void SetUpSimpleHttpServerWithSetCookies(
+    const std::map<GURL, std::pair<std::string, std::string>>& responses) {
+  SetUpHttpServer(base::MakeUnique<HtmlResponseProvider>(responses));
 }
 
 void SetUpFileBasedHttpServer() {