Moving GraphicsContext and dependencies from core to platform.

Source/platform/scroll/ScrollbarTheme.h

 /*
  * Copyright (C) 2008 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 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 ScrollbarTheme_h
 #define ScrollbarTheme_h
 
-#include "core/platform/graphics/GraphicsContext.h"
+#include "platform/PlatformExport.h"
 #include "platform/geometry/IntRect.h"
+#include "platform/graphics/GraphicsContext.h"
 #include "platform/scroll/ScrollTypes.h"
 
 namespace WebCore {
 
 class PlatformMouseEvent;
 class ScrollbarThemeClient;
 class ScrollView;
 
-class ScrollbarTheme {
+class PLATFORM_EXPORT ScrollbarTheme {
     WTF_MAKE_NONCOPYABLE(ScrollbarTheme); WTF_MAKE_FAST_ALLOCATED;
 public:
     ScrollbarTheme() { }
     virtual ~ScrollbarTheme() { }
 
     virtual void updateEnabledState(ScrollbarThemeClient*) { }
 
     virtual bool paint(ScrollbarThemeClient*, GraphicsContext*, const IntRect& damageRect);
     virtual ScrollbarPart hitTest(ScrollbarThemeClient*, const IntPoint&);
 
@@ skipping 82 matching lines @@
     static void setMockScrollbarsEnabled(bool flag);
     static bool mockScrollbarsEnabled();
 
 private:
     static ScrollbarTheme* nativeTheme(); // Must be implemented to return the correct theme subclass.
     static bool gMockScrollbarsEnabled;
 };
 
 }
 #endif