Refactor the URLResponseInfo to use new design

ppapi/thunk/ppb_url_loader_api.h

Index: ppapi/thunk/ppb_url_loader_api.h
diff --git a/ppapi/thunk/ppb_url_loader_api.h b/ppapi/thunk/ppb_url_loader_api.h
index ddcd20e88debf9295d32f5a683303ecb818599c5..0fe8e04e814513323c4f46d7e300f4ecc0594ce9 100644
--- a/ppapi/thunk/ppb_url_loader_api.h
+++ b/ppapi/thunk/ppb_url_loader_api.h
@@ -13,6 +13,7 @@ namespace ppapi {
 
 class TrackedCallback;
 struct URLRequestInfoData;
+struct URLResponseInfoData;
 
 namespace thunk {
 
@@ -47,6 +48,14 @@ class PPB_URLLoader_API {
   // Trusted API.
   virtual void GrantUniversalAccess() = 0;
   virtual void SetStatusCallback(PP_URLLoaderTrusted_StatusCallback cb) = 0;
+
+  // Internal function. This will fill in the given response info data and
+  // return true on sucesss. If the dowbload was to a file, there will be one
+  // plugin reference transferred to the caller. On failure, returns false.
+  //
+  // If body_as_file_ref is non-zero, this will transfer one plugin reference
+  // to that object to the caller.
+  virtual bool GetResponseInfoData(URLResponseInfoData* data) = 0;
 };
 
 }  // namespace thunk