Moving 4 SkImageFilter derived classes from blink to skia

include/effects/SkOffsetImageFilter.h

Index: include/effects/SkOffsetImageFilter.h
diff --git a/include/effects/SkOffsetImageFilter.h b/include/effects/SkOffsetImageFilter.h
index 62b5fa6511f9ae20080adbf160cc78d640212662..0b8c900758d9b0f8ca5473c7445dba26e158305c 100644
--- a/include/effects/SkOffsetImageFilter.h
+++ b/include/effects/SkOffsetImageFilter.h
@@ -12,8 +12,11 @@
 #include "SkPoint.h"
 
 class SK_API SkOffsetImageFilter : public SkImageFilter {
+    typedef SkImageFilter INHERITED;
+
 public:
-    SkOffsetImageFilter(SkScalar dx, SkScalar dy, SkImageFilter* input = NULL);
+    SkOffsetImageFilter(SkScalar dx, SkScalar dy, SkImageFilter* input = NULL,
+                        const SkIRect* cropRect = NULL);
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkOffsetImageFilter)
 
 protected:
@@ -26,8 +29,6 @@ protected:
 
 private:
     SkVector fOffset;
-
-    typedef SkImageFilter INHERITED;
 };
 
 #endif