ShapeDetection: add support for Text Detection in Mac

services/shape_detection/text_detection_impl.cc

Index: services/shape_detection/text_detection_impl.cc
diff --git a/services/shape_detection/text_detection_impl.cc b/services/shape_detection/text_detection_impl.cc
new file mode 100644
index 0000000000000000000000000000000000000000..c5a3f091ba2166b77577d8d17a6004b98335a4a8
--- /dev/null
+++ b/services/shape_detection/text_detection_impl.cc
@@ -0,0 +1,14 @@
+// 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.
+
+#include "services/shape_detection/text_detection_impl.h"
+
+namespace shape_detection {
+
+// static
+void TextDetectionImpl::Create(mojom::TextDetectionRequest request) {
+  DLOG(ERROR) << "Platform not supported for Text Detection Service.";
+}
+
+}  // namespace shape_detection