Remove use of void** from HttpResponseHeaders::EnumerateHeaderLines

net/url_request/view_cache_helper.cc

Index: net/url_request/view_cache_helper.cc
diff --git a/net/url_request/view_cache_helper.cc b/net/url_request/view_cache_helper.cc
index 36d3ae5ce0d89d26b8a422b367c2da11900bb232..b18d336fba54254bacfb2fca14aeca4dbbe858b9 100644
--- a/net/url_request/view_cache_helper.cc
+++ b/net/url_request/view_cache_helper.cc
@@ -311,7 +311,7 @@ int ViewCacheHelper::DoReadResponseComplete(int result) {
       data_->append(EscapeForHTML(response.headers->GetStatusLine()));
       data_->push_back('\n');
 
-      void* iter = NULL;
+      size_t iter = 0;
       std::string name, value;
       while (response.headers->EnumerateHeaderLines(&iter, &name, &value)) {
         data_->append(EscapeForHTML(name));