ShapeDetection: implement barcode detection, blink part

third_party/WebKit/Source/modules/shapedetection/DetectedBarcode.idl

Index: third_party/WebKit/Source/modules/shapedetection/DetectedBarcode.idl
diff --git a/third_party/WebKit/Source/modules/shapedetection/DetectedBarcode.idl b/third_party/WebKit/Source/modules/shapedetection/DetectedBarcode.idl
new file mode 100644
index 0000000000000000000000000000000000000000..7875f6acb706d20912856703bce995da08d1bbc1
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+++ b/third_party/WebKit/Source/modules/shapedetection/DetectedBarcode.idl
@@ -0,0 +1,14 @@
+// Copyright 2016 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.
+
+// https://wicg.github.io/shape-detection-api/#barcode-detection-api
+
+[
+    Constructor,
+    RuntimeEnabled=ShapeDetection,
+] interface DetectedBarcode {
+    // TODO(mcasas): Implement missing fields. https://crbug.com/646083
+    [SameObject] readonly attribute DOMString rawValue;
+    [SameObject] readonly attribute DOMRect boundingBox;
+};