Adding SK_API to export SkImage and SkSurface API classes

include/core/SkSurface.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkSurface_DEFINED
 #define SkSurface_DEFINED
 
 #include "SkRefCnt.h"
 #include "SkImage.h"
 
 class SkCanvas;
 class SkPaint;
 class GrContext;
 class GrRenderTarget;
 
 /**
  *  SkSurface represents the backend/results of drawing to a canvas. For raster
  *  drawing, the surface will be pixels, but (for example) when drawing into
  *  a PDF or Picture canvas, the surface stores the recorded commands.
  *
  *  To draw into a canvas, first create the appropriate type of Surface, and
  *  then request the canvas from the surface.
  */
-class SkSurface : public SkRefCnt {
+class SK_API SkSurface : public SkRefCnt {
 public:
     SK_DECLARE_INST_COUNT(SkSurface)
 
     /**
      *  Create a new surface, using the specified pixels/rowbytes as its
      *  backend.
      *
      *  If the requested surface cannot be created, or the request is not a
      *  supported configuration, NULL will be returned.
      */
@@ skipping 95 matching lines @@
 
 private:
     const int   fWidth;
     const int   fHeight;
     uint32_t    fGenerationID;
 
     typedef SkRefCnt INHERITED;
 };
 
 #endif