Remove the BeginSaveFile and BeginDownload methods from ResourceDispatcherHostImpl

content/browser/download/download_resource_handler.cc

Index: content/browser/download/download_resource_handler.cc
diff --git a/content/browser/download/download_resource_handler.cc b/content/browser/download/download_resource_handler.cc
index 05d22a8ee73cfe46f093aa7503646ed3a2bb6f98..c2d73939a4031eca04d581dbdd06c93c4eafbcc4 100644
--- a/content/browser/download/download_resource_handler.cc
+++ b/content/browser/download/download_resource_handler.cc
@@ -129,6 +129,15 @@ DownloadResourceHandler::~DownloadResourceHandler() {
   }
 }
 
+// static
+std::unique_ptr<ResourceHandler> DownloadResourceHandler::Create(
+    net::URLRequest* request) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  std::unique_ptr<ResourceHandler> handler(
+      new DownloadResourceHandler(request));
+  return handler;
+}
+
 bool DownloadResourceHandler::OnRequestRedirected(
     const net::RedirectInfo& redirect_info,
     ResourceResponse* response,