[DevTools] Always report encodedDataLength in Network.ResponseReceived.

content/browser/loader/async_resource_handler.cc

Index: content/browser/loader/async_resource_handler.cc
diff --git a/content/browser/loader/async_resource_handler.cc b/content/browser/loader/async_resource_handler.cc
index 5a151270aa0d0c6cced2159102d6fdc8fbbfa24a..3f0b67755bee257f61811da20e7366fdbf16a5c6 100644
--- a/content/browser/loader/async_resource_handler.cc
+++ b/content/browser/loader/async_resource_handler.cc
@@ -355,6 +355,7 @@ bool AsyncResourceHandler::OnResponseStarted(ResourceResponse* response,
   }
 
   NetLogObserver::PopulateResponseInfo(request(), response);
+  response->head.encoded_data_length = request()->raw_header_size();

[mmenke, 2016/07/21 18:10:50]

Hrm...I guess you can't use request()->GetTotalReceivedBytes() here because of
mime sniffing?

[allada, 2016/07/22 17:19:32]

I tried that originally but it was returning the number of bytes at that time,
so if a server sent the headers and some content at the same time it would give
back the size of the headers + size of content received. By moving it into a
variable that is explicitly set when headers are parsed it is much more
reliable.

 
   const HostZoomMapImpl* host_zoom_map =
       static_cast<const HostZoomMapImpl*>(info->filter()->GetHostZoomMap());