Correctly whitelist ftp directory listings.

chrome/renderer/page_load_histograms.cc

Index: chrome/renderer/page_load_histograms.cc
diff --git a/chrome/renderer/page_load_histograms.cc b/chrome/renderer/page_load_histograms.cc
index ce8a52974f091ea58a202d26e4010da7493f625b..9c72818a17f33e1c5eb407c733f5d3e1513e3a8f 100644
--- a/chrome/renderer/page_load_histograms.cc
+++ b/chrome/renderer/page_load_histograms.cc
@@ -21,6 +21,7 @@
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPerformance.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebURLResponse.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
+#include "webkit/glue/weburlresponse_extradata_impl.h"
 
 using WebKit::WebDataSource;
 using WebKit::WebFrame;
@@ -140,7 +141,10 @@ void PageLoadHistograms::Dump(WebFrame* frame) {
     return;
 
   // Ignore multipart requests.
-  if (frame->dataSource()->response().isMultipartPayload())
+  webkit_glue::WebURLResponseExtraDataImpl* extra_data =
+      static_cast<webkit_glue::WebURLResponseExtraDataImpl*>(
+          frame->dataSource()->response().extraData());
+  if (extra_data && extra_data->is_multipart_payload())
     return;
 
   DocumentState* document_state =