Moving GraphicsContext and dependencies from core to platform.

Source/platform/scroll/ScrollbarThemeMock.h

 /*
  * Copyright (C) 2011 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 ScrollbarThemeMock_h
 #define ScrollbarThemeMock_h
 
-#include "core/platform/ScrollbarTheme.h"
+#include "platform/scroll/ScrollbarTheme.h"
 
 namespace WebCore {
 
 // Scrollbar theme used in image snapshots, to eliminate appearance differences between platforms.
-class ScrollbarThemeMock : public ScrollbarTheme {
+class PLATFORM_EXPORT ScrollbarThemeMock : public ScrollbarTheme {
 public:
     virtual int scrollbarThickness(ScrollbarControlSize = RegularScrollbar) OVERRIDE;
     virtual bool usesOverlayScrollbars() const OVERRIDE;
 
 protected:
     virtual bool hasButtons(ScrollbarThemeClient*) OVERRIDE { return false; }
     virtual bool hasThumb(ScrollbarThemeClient*) OVERRIDE { return true; }
 
     virtual IntRect backButtonRect(ScrollbarThemeClient*, ScrollbarPart, bool /*painting*/ = false) OVERRIDE { return IntRect(); }
     virtual IntRect forwardButtonRect(ScrollbarThemeClient*, ScrollbarPart, bool /*painting*/ = false) OVERRIDE { return IntRect(); }
     virtual IntRect trackRect(ScrollbarThemeClient*, bool painting = false) OVERRIDE;
 
     virtual void paintTrackBackground(GraphicsContext*, ScrollbarThemeClient*, const IntRect&) OVERRIDE;
     virtual void paintThumb(GraphicsContext*, ScrollbarThemeClient*, const IntRect&) OVERRIDE;
 
 private:
     virtual bool isMockTheme() const OVERRIDE FINAL { return true; }
 };
 
 }
 #endif // ScrollbarThemeMock_h