ShapeDetection: Add FaceDetectorOptions for fastMode and maxDetectedFaces

third_party/WebKit/Source/modules/shapedetection/FaceDetector.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/FaceDetector.h"
 
 #include "core/dom/DOMException.h"
 #include "core/frame/LocalDOMWindow.h"
 #include "core/frame/LocalFrame.h"
 #include "core/html/canvas/CanvasImageSource.h"
 
 namespace blink {
 
-FaceDetector* FaceDetector::create(ScriptState* scriptState) {
-  return new FaceDetector(*scriptState->domWindow()->frame());
+FaceDetector* FaceDetector::create(ScriptState* scriptState,
+                                   const FaceDetectorOptions& options) {
+  return new FaceDetector(*scriptState->domWindow()->frame(), options);
 }
 
-FaceDetector::FaceDetector(LocalFrame& frame) : ShapeDetector(frame) {}
+FaceDetector::FaceDetector(LocalFrame& frame,
+                           const FaceDetectorOptions& options)
+    : ShapeDetector(frame) {
+  m_options = mojom::blink::FaceDetectorOptions::New();
+  m_options->max_detected_faces = options.maxDetectedFaces();
+  m_options->fast_mode = options.fastMode();

[Reilly Grant (use Gerrit), 2016/11/22 20:33:33]

Pass options to the ShapeDetector constructor and unpack them into the Mojo
struct there.

+}
 
 ScriptPromise FaceDetector::detect(ScriptState* scriptState,
                                    const CanvasImageSourceUnion& imageSource) {
   return detectShapes(scriptState, ShapeDetector::DetectorType::Face,
                       imageSource);
 }
 
 DEFINE_TRACE(FaceDetector) {
   ShapeDetector::trace(visitor);
 }
 
 }  // namespace blink