Componentization: make core/dom visible for blink_web and blink_tests.

Source/core/dom/Fullscreen.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
@@ skipping 10 matching lines @@
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  *
  */
 
 #ifndef Fullscreen_h
 #define Fullscreen_h
 
+#include "core/CoreExport.h"
 #include "core/dom/Document.h"
 #include "core/dom/DocumentLifecycleObserver.h"
 #include "core/dom/Element.h"
 #include "platform/Supplementable.h"
 #include "platform/Timer.h"
 #include "platform/geometry/LayoutRect.h"
 #include "wtf/Deque.h"
 #include "wtf/RefPtr.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
 class LayoutFullScreen;
 class ComputedStyle;
 
-class Fullscreen final
+class CORE_EXPORT Fullscreen final
     : public NoBaseWillBeGarbageCollectedFinalized<Fullscreen>
     , public DocumentSupplement
     , public DocumentLifecycleObserver {
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(Fullscreen);
 public:
     virtual ~Fullscreen();
     static const char* supplementName();
     static Fullscreen& from(Document&);
     static Fullscreen* fromIfExists(Document&);
     static Element* fullscreenElementFrom(Document&);
@@ skipping 68 matching lines @@
 inline Fullscreen* Fullscreen::fromIfExists(Document& document)
 {
     if (!document.hasFullscreenSupplement())
         return 0;
     return fromIfExistsSlow(document);
 }
 
 } // namespace blink
 
 #endif // Fullscreen_h