Use a new Supplement constructor in ScreenOrientationController

third_party/WebKit/Source/core/frame/ScreenOrientationController.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 ScreenOrientationController_h
 #define ScreenOrientationController_h
 
 #include "core/CoreExport.h"
 #include "core/frame/LocalFrame.h"
 #include "platform/Supplementable.h"
 #include "public/platform/modules/screen_orientation/WebScreenOrientationLockType.h"
 
 namespace blink {
 
 class WebLockOrientationCallback;
 
 // ScreenOrientationController allows to manipulate screen orientation in Blink
 // outside of the screen_orientation/ modules. It is an interface that the
 // module will implement and add a provider for.
 // Callers of ScreenOrientationController::from() should always assume the
 // returned pointer can be nullptr.
-class CORE_EXPORT ScreenOrientationController : public Supplement<LocalFrame> {
+class CORE_EXPORT ScreenOrientationController
+    : public GarbageCollectedFinalized<ScreenOrientationController>,
+      public Supplement<LocalFrame> {
+  USING_GARBAGE_COLLECTED_MIXIN(ScreenOrientationController);
+
  public:
   virtual ~ScreenOrientationController() = default;
 
   static ScreenOrientationController* from(LocalFrame&);
 
   virtual void lock(WebScreenOrientationLockType,
                     std::unique_ptr<WebLockOrientationCallback>) = 0;
   virtual void unlock() = 0;
 
   // Returns whether a lock() call was made without an unlock() call. Others
   // frames might have changed the lock state so this should only be used to
   // know whether the current frame made an attempt to lock without explicitly
   // unlocking.
   virtual bool maybeHasActiveLock() const = 0;
 
   DECLARE_VIRTUAL_TRACE();
 
  protected:
+  explicit ScreenOrientationController(LocalFrame&);
   // To be called by an ScreenOrientationController to register its
   // implementation.
   static void provideTo(LocalFrame&, ScreenOrientationController*);
 
  private:
   static const char* supplementName();
 };
 
 }  // namespace blink
 
 #endif  // ScreenOrientationController_h