Shape Detection: add idl and mojom for face landmarks and wire for Mac

third_party/WebKit/Source/modules/shapedetection/DetectedFace.h

 // 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.
 
 #ifndef DetectedFace_h
 #define DetectedFace_h
 
 #include "modules/ModulesExport.h"
 #include "platform/bindings/ScriptWrappable.h"
 
 namespace blink {
 
 class DOMRect;
+class Landmark;
 
 class MODULES_EXPORT DetectedFace final : public GarbageCollected<DetectedFace>,
                                           public ScriptWrappable {
   DEFINE_WRAPPERTYPEINFO();
 
  public:
   static DetectedFace* Create();
   static DetectedFace* Create(DOMRect*);
+  static DetectedFace* Create(DOMRect*, const HeapVector<Landmark>&);
 
   DOMRect* boundingBox() const;
+  const HeapVector<Landmark>& landmarks() const;
+
   DECLARE_TRACE();
 
  private:
   explicit DetectedFace(DOMRect*);
+  DetectedFace(DOMRect*, const HeapVector<Landmark>&);
 
   Member<DOMRect> bounding_box_;
+  HeapVector<Landmark> landmarks_;
 };
 
 }  // namespace blink
 
 #endif  // DetectedFace_h