Fix for no-GPU build (unreviewed).



git-svn-id: http://skia.googlecode.com/svn/trunk@5232 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/effects/SkBlendImageFilter.cpp b/src/effects/SkBlendImageFilter.cpp
index 6822624..86fd7ad 100644
--- a/src/effects/SkBlendImageFilter.cpp
+++ b/src/effects/SkBlendImageFilter.cpp
@@ -7,6 +7,7 @@
 
 #include "SkBlendImageFilter.h"
 #include "SkCanvas.h"
+#include "SkColorPriv.h"
 #include "SkFlattenableBuffers.h"
 #if SK_SUPPORT_GPU
 #include "SkGr.h"