Use DownloadManager to initiate downloads instead ResourceDispatcherHost

content/browser/renderer_host/render_message_filter.cc

Index: content/browser/renderer_host/render_message_filter.cc
diff --git a/content/browser/renderer_host/render_message_filter.cc b/content/browser/renderer_host/render_message_filter.cc
index cec7b8b1225fbbe99c24a5849041c8e0f26856cc..d3e33aee5e29571df3b43fce1947650ee32c8ca2 100644
--- a/content/browser/renderer_host/render_message_filter.cc
+++ b/content/browser/renderer_host/render_message_filter.cc
@@ -42,7 +42,8 @@
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/content_browser_client.h"
-#include "content/public/browser/download_save_info.h"
+#include "content/public/browser/download_manager.h"
+#include "content/public/browser/download_url_parameters.h"
 #include "content/public/browser/resource_context.h"
 #include "content/public/browser/user_metrics.h"
 #include "content/public/common/content_switches.h"
@@ -100,6 +101,21 @@ base::LazyInstance<gfx::ColorProfile>::Leaky g_color_profile =
     LAZY_INSTANCE_INITIALIZER;
 #endif
 
+void DownloadUrlOnUIThread(scoped_ptr<DownloadUrlParameters> parameters) {
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
+
+  RenderProcessHost* render_process_host =
+      RenderProcessHost::FromID(parameters->render_process_host_id());
+  if (!render_process_host)
+    return;
+
+  BrowserContext* browser_context = render_process_host->GetBrowserContext();
+  DownloadManager* download_manager =
+      BrowserContext::GetDownloadManager(browser_context);
+  RecordDownloadSource(INITIATED_BY_RENDERER);
+  download_manager->DownloadUrl(std::move(parameters));
+}
+
 }  // namespace
 
 RenderMessageFilter::RenderMessageFilter(
@@ -372,19 +388,16 @@ void RenderMessageFilter::DownloadUrl(int render_view_id,
   if (!resource_context_)
     return;
 
-  scoped_ptr<DownloadSaveInfo> save_info(new DownloadSaveInfo());
-  save_info->suggested_name = suggested_name;
-  save_info->prompt_for_save_location = use_prompt;
-  scoped_ptr<net::URLRequest> request(
-      resource_context_->GetRequestContext()->CreateRequest(
-          url, net::DEFAULT_PRIORITY, NULL));
-  RecordDownloadSource(INITIATED_BY_RENDERER);
-  resource_dispatcher_host_->BeginDownload(
-      std::move(request), referrer,
-      true,  // is_content_initiated
-      resource_context_, render_process_id_, render_view_id, render_frame_id,
-      false, false, std::move(save_info), DownloadItem::kInvalidId,
-      ResourceDispatcherHostImpl::DownloadStartedCallback());
+  scoped_ptr<DownloadUrlParameters> parameters(
+      new DownloadUrlParameters(url, render_process_id_, render_view_id,
+                                render_frame_id, resource_context_));
+  parameters->set_content_initiated(true);
+  parameters->set_suggested_name(suggested_name);
+  parameters->set_prompt(use_prompt);
+  parameters->set_referrer(referrer);
+  BrowserThread::PostTask(
+      BrowserThread::UI, FROM_HERE,
+      base::Bind(&DownloadUrlOnUIThread, base::Passed(&parameters)));
 }
 
 void RenderMessageFilter::OnDownloadUrl(int render_view_id,