Mark SkColorFilter and SkCreateCGImageRefWithColorspace as SK_API.

Required for the chromium/mac components build.

BUG=chromium:90078
Review URL: https://codereview.appspot.com/5642073/



git-svn-id: http://skia.googlecode.com/svn/trunk@3160 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/include/utils/mac/SkCGUtils.h b/include/utils/mac/SkCGUtils.h
index 055e24c..9848d22 100644
--- a/include/utils/mac/SkCGUtils.h
+++ b/include/utils/mac/SkCGUtils.h
@@ -25,8 +25,8 @@
  *  Create an imageref from the specified bitmap using the specified colorspace.
  *  If space is NULL, then CGColorSpaceCreateDeviceRGB() is used.
  */
-CGImageRef SkCreateCGImageRefWithColorspace(const SkBitmap& bm,
-                                            CGColorSpaceRef space);
+SK_API CGImageRef SkCreateCGImageRefWithColorspace(const SkBitmap& bm,
+                                                   CGColorSpaceRef space);
 
 /**
  *  Create an imageref from the specified bitmap using the colorspace returned