Build skia as a dll in windows multi-dll build.

skia/ext/image_operations.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef SKIA_EXT_IMAGE_OPERATIONS_H_
 #define SKIA_EXT_IMAGE_OPERATIONS_H_
 #pragma once
 
+#include "third_party/skia/include/core/SkTypes.h"
+
 class SkBitmap;
 struct SkIRect;
 
 namespace skia {
 
-class ImageOperations {
+class SK_API ImageOperations {
  public:
   enum ResizeMethod {
     //
     // Quality Methods
     //
     // Those enumeration values express a desired quality/speed tradeoff.
     // They are translated into an algorithm-specific method that depends
     // on the capabilities (CPU, GPU) of the underlying platform.
     // It is possible for all three methods to be mapped to the same
     // algorithm on a given platform.
@@ skipping 94 matching lines @@
 
   // Subpixel renderer.
   static SkBitmap ResizeSubpixel(const SkBitmap& source,
                                  int dest_width, int dest_height,
                                  const SkIRect& dest_subset);
 };
 
 }  // namespace skia
 
 #endif  // SKIA_EXT_IMAGE_OPERATIONS_H_