ShapeDetection: split mojom into face and barcode interfaces

third_party/WebKit/public/platform/modules/shapedetection/barcodedetection.mojom

+// 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/#api
+
+module blink.mojom;
+
+import "ui/gfx/geometry/mojo/geometry.mojom";
+
+struct BarcodeDetectionResult {
+  // Barcode or QR extracted contents (see e.g.
+  // https://github.com/zxing/zxing/wiki/Barcode-Contents).
+  string raw_value;
+  gfx.mojom.RectF bounding_box;
+};
+
+interface BarcodeDetection {
+  // |frame_data| contains tightly packed image pixels in ARGB32 format,
+  // row-major order.
+  // TODO(mcasas): Consider using mojo::Bitmap here, https://crbug.com/665488.
+  Detect(handle<shared_buffer> frame_data, uint32 width, uint32 height)
+      => (array<BarcodeDetectionResult> results);
+};