Change SkImageFilter's cropRect from SkIRect to a CropRect struct

include/effects/SkLightingImageFilter.h

Index: include/effects/SkLightingImageFilter.h
diff --git a/include/effects/SkLightingImageFilter.h b/include/effects/SkLightingImageFilter.h
index 9c90cd949bc2f94718befdadf6d945f37dbc7c30..529ae9d620a13743d81c07cda57a9716d27215e2 100644
--- a/include/effects/SkLightingImageFilter.h
+++ b/include/effects/SkLightingImageFilter.h
@@ -52,24 +52,24 @@ class SK_API SkLightingImageFilter : public SkImageFilter {
 public:
     static SkImageFilter* CreateDistantLitDiffuse(const SkPoint3& direction,
         SkColor lightColor, SkScalar surfaceScale, SkScalar kd,
-        SkImageFilter* input = NULL, const SkIRect* cropRect = NULL);
+        SkImageFilter* input = NULL, const CropRect* cropRect = NULL);
     static SkImageFilter* CreatePointLitDiffuse(const SkPoint3& location,
         SkColor lightColor, SkScalar surfaceScale, SkScalar kd,
-        SkImageFilter* input = NULL, const SkIRect* cropRect = NULL);
+        SkImageFilter* input = NULL, const CropRect* cropRect = NULL);
     static SkImageFilter* CreateSpotLitDiffuse(const SkPoint3& location,
         const SkPoint3& target, SkScalar specularExponent, SkScalar cutoffAngle,
         SkColor lightColor, SkScalar surfaceScale, SkScalar kd,
-        SkImageFilter* input = NULL, const SkIRect* cropRect = NULL);
+        SkImageFilter* input = NULL, const CropRect* cropRect = NULL);
     static SkImageFilter* CreateDistantLitSpecular(const SkPoint3& direction,
         SkColor lightColor, SkScalar surfaceScale, SkScalar ks,
-        SkScalar shininess, SkImageFilter* input = NULL, const SkIRect* cropRect = NULL);
+        SkScalar shininess, SkImageFilter* input = NULL, const CropRect* cropRect = NULL);
     static SkImageFilter* CreatePointLitSpecular(const SkPoint3& location,
         SkColor lightColor, SkScalar surfaceScale, SkScalar ks,
-        SkScalar shininess, SkImageFilter* input = NULL, const SkIRect* cropRect = NULL);
+        SkScalar shininess, SkImageFilter* input = NULL, const CropRect* cropRect = NULL);
     static SkImageFilter* CreateSpotLitSpecular(const SkPoint3& location,
         const SkPoint3& target, SkScalar specularExponent, SkScalar cutoffAngle,
         SkColor lightColor, SkScalar surfaceScale, SkScalar ks,
-        SkScalar shininess, SkImageFilter* input = NULL, const SkIRect* cropRect = NULL);
+        SkScalar shininess, SkImageFilter* input = NULL, const CropRect* cropRect = NULL);
     ~SkLightingImageFilter();
 
     SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP()
@@ -78,7 +78,7 @@ protected:
     SkLightingImageFilter(SkLight* light,
                           SkScalar surfaceScale,
                           SkImageFilter* input,
-                          const SkIRect* cropRect = NULL);
+                          const CropRect* cropRect = NULL);
     explicit SkLightingImageFilter(SkFlattenableReadBuffer& buffer);
     virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;
     const SkLight* light() const { return fLight; }