ResizeObserver pt3: observation computation

third_party/WebKit/Source/core/observer/ResizeObserver.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 ResizeObserver_h
 #define ResizeObserver_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
 class Document;
 class Element;
 class ResizeObserverCallback;
 class ResizeObserverController;
 class ResizeObservation;
 
 // ResizeObserver represents ResizeObserver javascript api:
 // https://github.com/WICG/ResizeObserver/
-class ResizeObserver final : public GarbageCollectedFinalized<ResizeObserver>, public ScriptWrappable {
+class CORE_EXPORT ResizeObserver final : public GarbageCollectedFinalized<ResizeObserver>, public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();
 public:
 
     static ResizeObserver* create(Document&, ResizeObserverCallback*);
 
     virtual ~ResizeObserver() {};
 
     // API methods
     void observe(Element*);
     void unobserve(Element*);
@@ skipping 12 matching lines @@
     // List of elements we are observing
     ObservationList m_observations;
 
     WeakMember<ResizeObserverController> m_controller;
 };
 
 
 } // namespace blink
 
 #endif // ResizeObserver_h