Remove use of void** from HttpResponseHeaders::EnumerateHeaderLines

components/cronet/android/cronet_url_request_adapter.cc

Index: components/cronet/android/cronet_url_request_adapter.cc
diff --git a/components/cronet/android/cronet_url_request_adapter.cc b/components/cronet/android/cronet_url_request_adapter.cc
index 2994e247be671fef415db54a1fe9556aec8fdeb7..5a56d6ed760cae2731328d839c46f917cc0e29e3 100644
--- a/components/cronet/android/cronet_url_request_adapter.cc
+++ b/components/cronet/android/cronet_url_request_adapter.cc
@@ -359,7 +359,7 @@ CronetURLRequestAdapter::GetResponseHeaders(JNIEnv* env) {
   const net::HttpResponseHeaders* headers = url_request_->response_headers();
   // Returns an empty array if |headers| is nullptr.
   if (headers != nullptr) {
-    void* iter = nullptr;
+    size_t iter = 0;
     std::string header_name;
     std::string header_value;
     while (headers->EnumerateHeaderLines(&iter, &header_name, &header_value)) {