Sanitize SkMatrixConvolutionImageFilter creation params.

include/effects/SkMatrixConvolutionImageFilter.h

Index: include/effects/SkMatrixConvolutionImageFilter.h
diff --git a/include/effects/SkMatrixConvolutionImageFilter.h b/include/effects/SkMatrixConvolutionImageFilter.h
index c14d6f99f824344b77bd9b6980a5c0d56751d491..c04d7d15686597f30361dee9e27f55cec792781e 100644
--- a/include/effects/SkMatrixConvolutionImageFilter.h
+++ b/include/effects/SkMatrixConvolutionImageFilter.h
@@ -61,11 +61,7 @@ public:
                                                   bool convolveAlpha,
                                                   SkImageFilter* input = NULL,
                                                   const CropRect* cropRect = NULL,
-                                                  uint32_t uniqueID = 0) {
-        return SkNEW_ARGS(SkMatrixConvolutionImageFilter, (kernelSize, kernel, gain, bias,
-                                                           kernelOffset, tileMode, convolveAlpha,
-                                                           input, cropRect, uniqueID));
-    }
+                                                  uint32_t uniqueID = 0);
 
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkMatrixConvolutionImageFilter)