Use a new Supplement constructor in Navigator supplements (part 2)

third_party/WebKit/Source/modules/vibration/NavigatorVibration.cpp

 /*
  *  Copyright (C) 2012 Samsung Electronics
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Library General Public
  *  License as published by the Free Software Foundation; either
  *  version 2 of the License, or (at your option) any later version.
  *
  *  This library is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 16 matching lines @@
 #include "core/frame/UseCounter.h"
 #include "core/page/Page.h"
 #include "modules/vibration/VibrationController.h"
 #include "platform/Histogram.h"
 #include "platform/UserGestureIndicator.h"
 #include "public/platform/site_engagement.mojom-blink.h"
 
 namespace blink {
 
 NavigatorVibration::NavigatorVibration(Navigator& navigator)
-    : ContextLifecycleObserver(navigator.frame()->document()) {}
+    : Supplement<Navigator>(navigator),
+      ContextLifecycleObserver(navigator.frame()->document()) {}

[sof, 2017/01/23 08:19:17]

Need a frame() null check here as well?

 
 NavigatorVibration::~NavigatorVibration() {}
 
 // static
 NavigatorVibration& NavigatorVibration::from(Navigator& navigator) {
   NavigatorVibration* navigatorVibration = static_cast<NavigatorVibration*>(
       Supplement<Navigator>::from(navigator, supplementName()));
   if (!navigatorVibration) {
     navigatorVibration = new NavigatorVibration(navigator);
     Supplement<Navigator>::provideTo(navigator, supplementName(),
@@ skipping 114 matching lines @@
   }
 }
 
 DEFINE_TRACE(NavigatorVibration) {
   visitor->trace(m_controller);
   Supplement<Navigator>::trace(visitor);
   ContextLifecycleObserver::trace(visitor);
 }
 
 }  // namespace blink