Use the suggested name from an anchor's 'download' attribute.

content/renderer/render_view.cc

Index: content/renderer/render_view.cc
diff --git a/content/renderer/render_view.cc b/content/renderer/render_view.cc
index 1eeeb773153494d3cd70102a1a9d02fc0e50842a..21677bb80b0d09e8c0815d9948262f788754754d 100644
--- a/content/renderer/render_view.cc
+++ b/content/renderer/render_view.cc
@@ -1979,9 +1979,17 @@ void RenderView::willClose(WebFrame* frame) {
 void RenderView::loadURLExternally(
     WebFrame* frame, const WebURLRequest& request,
     WebNavigationPolicy policy) {
+  loadURLExternally(frame, request, policy, WebString());
+}
+
+void RenderView::loadURLExternally(
+    WebFrame* frame, const WebURLRequest& request,
+    WebNavigationPolicy policy,
+    const WebString& suggested_name) {
   GURL referrer(request.httpHeaderField(WebString::fromUTF8("Referer")));
   if (policy == WebKit::WebNavigationPolicyDownload) {
-    Send(new ViewHostMsg_DownloadUrl(routing_id_, request.url(), referrer));
+    Send(new ViewHostMsg_DownloadUrl(routing_id_, request.url(), referrer,
+                                     suggested_name));
   } else {
     OpenURL(request.url(), referrer, policy);
   }