Componentization: make core classes visible for blink_tests and blink_web.

Source/core/frame/PageScaleConstraintsSet.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef PageScaleConstraintsSet_h
 #define PageScaleConstraintsSet_h
 
+#include "core/CoreExport.h"
 #include "core/dom/ViewportDescription.h"
 #include "core/frame/PageScaleConstraints.h"
 #include "platform/Length.h"
 #include "platform/geometry/IntSize.h"
 #include "wtf/PassOwnPtr.h"
 
 namespace blink {
 
 // This class harmonizes the viewport (particularly page scale) constraints from
 // the meta viewport tag and other sources.
-class PageScaleConstraintsSet {
+class CORE_EXPORT PageScaleConstraintsSet {
 public:
     static PassOwnPtr<PageScaleConstraintsSet> create()
     {
         return adoptPtr(new PageScaleConstraintsSet);
     }
 
     void setDefaultConstraints(const PageScaleConstraints&);
     const PageScaleConstraints& defaultConstraints() const;
 
     // Settings defined in the website's viewport tag, if viewport tag support
@@ skipping 47 matching lines @@
     int m_lastContentsWidth;
     IntSize m_viewSize;
 
     bool m_needsReset;
     bool m_constraintsDirty;
 };
 
 } // namespace blink
 
 #endif // PageScaleConstraintsSet_h