Enable download page action for error page

chrome/renderer/net/net_error_helper.cc

Index: chrome/renderer/net/net_error_helper.cc
diff --git a/chrome/renderer/net/net_error_helper.cc b/chrome/renderer/net/net_error_helper.cc
index e4c6001a7bb99330ee07ed727bb03c5eea87dbb2..47316642460d597194255d32fe6f3c1bde6d84b2 100644
--- a/chrome/renderer/net/net_error_helper.cc
+++ b/chrome/renderer/net/net_error_helper.cc
@@ -340,6 +340,14 @@ void NetErrorHelper::DownloadPageLater() {
 #endif  // defined(OS_ANDROID)
 }
 
+void NetErrorHelper::SetIsShowingDownloadButton(bool show) {
+#if defined(OS_ANDROID)
+  render_frame()->Send(
+      new ChromeViewHostMsg_SetIsShowingDownloadButtonInErrorPage(
+          render_frame()->GetRoutingID(), show));
+#endif  // defined(OS_ANDROID)
+}
+
 void NetErrorHelper::OnNetErrorInfo(int status_num) {
   DCHECK(status_num >= 0 && status_num < error_page::DNS_PROBE_MAX);