Download code cleanup:

chrome/browser/download/download_util.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // Download utility implementation
 
 #include "chrome/browser/download/download_util.h"
 
 #if defined(OS_WIN)
 #include <shobjidl.h>
 #endif
 #include <string>
 
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
 #include "base/file_util.h"
 #include "base/i18n/rtl.h"
 #include "base/i18n/time_formatting.h"
 #include "base/path_service.h"
 #include "base/singleton.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
+#include "chrome/browser/chrome_thread.h"
 #include "chrome/browser/download/download_item.h"
 #include "chrome/browser/download/download_item_model.h"
 #include "chrome/browser/download/download_manager.h"
+#include "chrome/browser/net/chrome_url_request_context.h"
+#include "chrome/browser/renderer_host/resource_dispatcher_host.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/time_format.h"
 #include "gfx/canvas_skia.h"
 #include "gfx/rect.h"
 #include "grit/generated_resources.h"
 #include "grit/locale_settings.h"
 #include "grit/theme_resources.h"
 #include "net/base/mime_util.h"
 #include "skia/ext/image_operations.h"
@@ skipping 470 matching lines @@
     new_path = FilePath(path);
     AppendNumberToPath(&new_path, count);
 
     if (!file_util::PathExists(new_path))
       return count;
   }
 
   return -1;
 }
 
+void DownloadUrl(
+    const GURL& url,
+    const GURL& referrer,
+    const std::string& referrer_charset,
+    const DownloadSaveInfo& save_info,
+    ResourceDispatcherHost* rdh,
+    int render_process_host_id,
+    int render_view_id,
+    URLRequestContextGetter* request_context_getter) {
+  DCHECK(ChromeThread::CurrentlyOn(ChromeThread::IO));
+
+  URLRequestContext* context = request_context_getter->GetURLRequestContext();
+  context->set_referrer_charset(referrer_charset);
+
+  rdh->BeginDownload(url,
+                     referrer,
+                     save_info,
+                     true,  // Show "Save as" UI.
+                     render_process_host_id,
+                     render_view_id,
+                     context);
+}
+
+void CancelDownloadRequest(ResourceDispatcherHost* rdh,
+                           int render_process_id,
+                           int request_id) {
+  DCHECK(ChromeThread::CurrentlyOn(ChromeThread::IO));
+  rdh->CancelRequest(render_process_id, request_id, false);
+}
+
 }  // namespace download_util