Extend with a language code in http accept languages

chromecast/browser/cast_http_user_agent_settings.cc

Index: chromecast/browser/cast_http_user_agent_settings.cc
diff --git a/chromecast/browser/cast_http_user_agent_settings.cc b/chromecast/browser/cast_http_user_agent_settings.cc
index 1161c00ed0f3fa8e64b00bb9217cb567f291af28..3e323a39a4de9229a1db384231ede824cb765ab4 100644
--- a/chromecast/browser/cast_http_user_agent_settings.cc
+++ b/chromecast/browser/cast_http_user_agent_settings.cc
@@ -10,7 +10,7 @@
 #include "chromecast/common/cast_content_client.h"
 #include "content/public/browser/browser_thread.h"
 #include "grit/chromecast_settings.h"
-#include "net/http/http_util.h"
+#include "net/http/http_util_icu.h"
 #include "ui/base/l10n/l10n_util.h"
 
 #if defined(OS_ANDROID)
@@ -40,7 +40,7 @@ std::string CastHttpUserAgentSettings::GetAcceptLanguage() const {
       );
   if (new_locale != last_locale_ || accept_language_.empty()) {
     last_locale_ = new_locale;
-    accept_language_ = net::HttpUtil::GenerateAcceptLanguageHeader(
+    accept_language_ = net::http_util_icu::GenerateAcceptLanguageHeader(
 #if defined(OS_ANDROID)
         last_locale_
 #else