ShapeDetection: implement barcode detection, blink part

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

+// 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.
+
+#include "modules/shapedetection/DetectedBarcode.h"
+
+#include "core/dom/DOMRect.h"
+
+namespace blink {
+
+DetectedBarcode* DetectedBarcode::create() {
+  return new DetectedBarcode(emptyString(), DOMRect::create(0, 0, 0, 0));
+}
+
+DetectedBarcode* DetectedBarcode::create(String rawValue,
+                                         DOMRect* boundingBox) {
+  return new DetectedBarcode(rawValue, boundingBox);
+}
+
+const String& DetectedBarcode::rawValue() const {
+  return m_rawValue;
+}
+
+DOMRect* DetectedBarcode::boundingBox() const {
+  return m_boundingBox.get();
+}
+
+DetectedBarcode::DetectedBarcode(String rawValue, DOMRect* boundingBox)
+    : m_rawValue(rawValue), m_boundingBox(boundingBox) {}
+
+DEFINE_TRACE(DetectedBarcode) {
+  visitor->trace(m_boundingBox);
+}
+
+}  // namespace blink