Remove URLRequestJobFactory::IsHandledURL.

content/browser/download/download_manager_impl.cc

Index: content/browser/download/download_manager_impl.cc
diff --git a/content/browser/download/download_manager_impl.cc b/content/browser/download/download_manager_impl.cc
index 83c279fc8e517e69c10ffb0f5fb15c8afca7f168..4f1aa6a49c4bf7a78cf797dab283d56dbe5bd413 100644
--- a/content/browser/download/download_manager_impl.cc
+++ b/content/browser/download/download_manager_impl.cc
@@ -564,7 +564,7 @@ DownloadInterruptReason DownloadManagerImpl::BeginDownloadRequest(
   }
 
   const net::URLRequestContext* request_context = url_request->context();
-  if (!request_context->job_factory()->IsHandledURL(url)) {
+  if (!request_context->job_factory()->IsHandledProtocol(url.scheme())) {

[mmenke, 2017/03/31 04:30:04]

Blocking invalid URLs here seems reasonable (The above check catches them
anyways)

[asanka, 2017/03/31 20:38:30]

Acknowledged. It's also fine to let the request go through and fail later. We
need to handle such cases anyway.

     DVLOG(1) << "Download request for unsupported protocol: "
              << url.possibly_invalid_spec();
     return DOWNLOAD_INTERRUPT_REASON_NETWORK_INVALID_REQUEST;