diff --git a/chrome/chrome.d.ts b/chrome/chrome.d.ts
index eb749f6e77..8f1bc3fd64 100755
--- a/chrome/chrome.d.ts
+++ b/chrome/chrome.d.ts
@@ -775,6 +775,14 @@ declare module chrome.downloads {
     export function resume(downloadId: number, callback?: Function): void;
     export function cancel(downloadId: number, callback?: Function): void;
     export function download(options: DownloadOptions, callback?: (downloadId: number) => void): void;
+    export function open(downloadId: number): void;
+    export function show(downloadId: number): void;
+    export function showDefaultFolder(): void;
+    export function erase(query: DownloadQuery, callback: (results: DownloadItem[]) => void): void;
+    export function removeFile(downloadId: number, callback: () => void): void;
+    export function acceptDanger(downloadId: number, callback: () => void): void;
+    export function drag(downloadId: number): void;
+    export function setShelfEnabled(enabled: boolean): void;
 
     var onChanged: DownloadChangedEvent;
     var onCreated: DownloadCreatedEvent;