Preserving Content-Type header from http request in OpenURL path.

content/child/web_url_loader_impl.cc

Index: content/child/web_url_loader_impl.cc
diff --git a/content/child/web_url_loader_impl.cc b/content/child/web_url_loader_impl.cc
index 2ef11d1dada676638d6f0414d88477382efac90f..7d081314ead49ceec076f937a3a540fd9f32add3 100644
--- a/content/child/web_url_loader_impl.cc
+++ b/content/child/web_url_loader_impl.cc
@@ -532,7 +532,8 @@ void WebURLLoaderImpl::Context::Start(const WebURLRequest& request,
   referrer_policy_ = request.referrerPolicy();
   resource_request->referrer_policy = referrer_policy_;
 
-  resource_request->headers = GetWebURLRequestHeaders(request);
+  resource_request->headers =
+      GetWebURLRequestHeadersForResourceRequest(request);
   resource_request->load_flags = GetLoadFlagsForWebURLRequest(request);
   // origin_pid only needs to be non-zero if the request originates outside
   // the render process, so we can use requestorProcessID even for requests