add SK_API to SkImageInfo

include/core/SkImageInfo.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkImageInfo_DEFINED
 #define SkImageInfo_DEFINED
 
@@ skipping 117 matching lines @@
  *  alphaType for this colorType, return it in canonical.
  */
 bool SkColorTypeValidateAlphaType(SkColorType colorType, SkAlphaType alphaType,
                                   SkAlphaType* canonical = NULL);
 
 ///////////////////////////////////////////////////////////////////////////////
 
 /**
  *  Describe an image's dimensions and pixel type.
  */
-struct SkImageInfo {
+struct SK_API SkImageInfo {
 public:
     SkImageInfo() {}
 
     int         fWidth;
     int         fHeight;
     SkColorType fColorType;
     SkAlphaType fAlphaType;
 
 private:
     enum Profile {
@@ skipping 143 matching lines @@
     bool isSRGB() const { return kSRGB_Profile == fProfile; }
     
     /**
      *  If this was tagged with an explicit gamma value, return that value, else return 0.
      *  If this was tagged as sRGB, return 0.
      */
     float gamma() const { return fGamma; }
 };
 
 #endif