Shape Detection: Add Text Detection in Chrome Android

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

Index: third_party/WebKit/Source/modules/shapedetection/DetectedText.idl
diff --git a/third_party/WebKit/Source/modules/shapedetection/DetectedText.idl b/third_party/WebKit/Source/modules/shapedetection/DetectedText.idl
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+++ b/third_party/WebKit/Source/modules/shapedetection/DetectedText.idl
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+// Copyright 2017 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/#text-detection-api
+
+[
+    Constructor,
+    RuntimeEnabled=ShapeDetection,
+] interface DetectedText {
+    [SameObject] readonly attribute DOMRect boundingBox;
+    [SameObject] readonly attribute DOMString rawValue;
+};