Refactor the URLResponseInfo to use new design

ppapi/proxy/ppb_url_loader_proxy.h

Index: ppapi/proxy/ppb_url_loader_proxy.h
diff --git a/ppapi/proxy/ppb_url_loader_proxy.h b/ppapi/proxy/ppb_url_loader_proxy.h
index 5e4e75924b7bdb3ede9f0b2d3f59129315cf6242..f4c5bc56a73e2317839691a7250dcc23e63983d5 100644
--- a/ppapi/proxy/ppb_url_loader_proxy.h
+++ b/ppapi/proxy/ppb_url_loader_proxy.h
@@ -21,6 +21,7 @@
 namespace ppapi {
 
 struct URLRequestInfoData;
+struct URLResponseInfoData;
 
 namespace proxy {
 
@@ -61,7 +62,8 @@ class PPB_URLLoader_Proxy : public InterfaceProxy {
                  const URLRequestInfoData& data);
   void OnMsgFollowRedirect(const HostResource& loader);
   void OnMsgGetResponseInfo(const HostResource& loader,
-                            HostResource* result);
+                            bool* success,
+                            URLResponseInfoData* result);
   void OnMsgReadResponseBody(const HostResource& loader,
                              int32_t bytes_to_read);
   void OnMsgFinishStreamingToFile(const HostResource& loader);