Moving GraphicsContext and dependencies from core to platform.

Source/platform/graphics/gpu/DrawingBuffer.h

 /*
  * Copyright (c) 2010, 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 DrawingBuffer_h
 #define DrawingBuffer_h
 
-#include "core/platform/graphics/GraphicsContext3D.h"
+#include "platform/PlatformExport.h"
 #include "platform/geometry/IntSize.h"
+#include "platform/graphics/GraphicsContext3D.h"
 #include "platform/graphics/GraphicsTypes3D.h"
 
 #include "public/platform/WebExternalTextureLayerClient.h"
 #include "public/platform/WebExternalTextureMailbox.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/PassOwnPtr.h"
 
 namespace blink {
 class WebExternalBitmap;
 class WebExternalTextureLayer;
 class WebGraphicsContext3D;
 class WebLayer;
 }
 
 namespace WebCore {
 class GraphicsContext3D;
 class ImageData;
 
 // Abstract interface to allow basic context eviction management
-class ContextEvictionManager : public RefCounted<ContextEvictionManager> {
+class PLATFORM_EXPORT ContextEvictionManager : public RefCounted<ContextEvictionManager> {
 public:
     virtual ~ContextEvictionManager() {};
 
     virtual void forciblyLoseOldestContext(const String& reason) = 0;
     virtual IntSize oldestContextSize() = 0;
 };
 
 // Manages a rendering target (framebuffer + attachment) for a canvas.  Can publish its rendering
 // results to a blink::WebLayer for compositing.
-class DrawingBuffer : public RefCounted<DrawingBuffer>, public blink::WebExternalTextureLayerClient  {
+class PLATFORM_EXPORT DrawingBuffer : public RefCounted<DrawingBuffer>, public blink::WebExternalTextureLayerClient  {
     struct MailboxInfo : public RefCounted<MailboxInfo> {
         blink::WebExternalTextureMailbox mailbox;
         unsigned textureId;
         IntSize size;
     };
 public:
     enum PreserveDrawingBuffer {
         Preserve,
         Discard
     };
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     // Mailboxes that were released by the compositor and can be used again by this DrawingBuffer.
     Vector<RefPtr<MailboxInfo> > m_recycledMailboxes;
     RefPtr<MailboxInfo> m_lastColorBuffer;
 
     RefPtr<ContextEvictionManager> m_contextEvictionManager;
 };
 
 } // namespace WebCore
 
 #endif // DrawingBuffer_h