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diff --git a/chromium/extensions/common/api/document_scan.idl b/chromium/extensions/common/api/document_scan.idl
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+++ b/chromium/extensions/common/api/document_scan.idl
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+// Copyright 2014 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.
+
+// Use the <code>chrome.documentScan</code> API to discover and retrieve
+// images from attached paper document scanners.
+namespace documentScan {
+  dictionary ScanOptions {
+    // The MIME types that are accepted by the caller.
+    DOMString[]? mimeTypes;
+
+    // The number of scanned images allowed (defaults to 1).
+    long? maxImages;
+  };
+
+  dictionary ScanResults {
+    // The data image URLs in a form that can be passed as the "src" value to
+    // an image tag.
+    DOMString[] dataUrls;
+
+    // The MIME type of <code>dataUrls</code>.
+    DOMString mimeType;
+  };
+
+  // Callback from the <code>scan</code> method.
+  // |result| The results from the scan, if successful.
+  // Otherwise will return null and set runtime.lastError.
+  callback ScanCallback = void (ScanResults result);
+
+  interface Functions {
+    // Performs a document scan.  On success, the PNG data will be
+    // sent to the callback.
+    // |options| : Object containing scan parameters.
+    // |callback| : Called with the result and data from the scan.
+    static void scan(ScanOptions options, ScanCallback callback);
+  };
+};