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..288157c04d4a7114308240574d18a111f931aef0 100644
--- a/components/cronet/android/cronet_url_request_adapter.cc
+++ b/components/cronet/android/cronet_url_request_adapter.cc
@@ -359,10 +359,10 @@ 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)) {
+    while (headers->EnumerateHeaderLines(iter, &header_name, &header_value)) {
       response_headers.push_back(header_name);
       response_headers.push_back(header_value);
     }