reland hide get/setLocalMatrix

src/effects/SkRectShaderImageFilter.cpp

Index: src/effects/SkRectShaderImageFilter.cpp
diff --git a/src/effects/SkRectShaderImageFilter.cpp b/src/effects/SkRectShaderImageFilter.cpp
index 13e59c2c278177178a514dc77d3a19e8689b7d0f..bed017c32607c4bfbb71349de56e27bf6f6cbf01 100644
--- a/src/effects/SkRectShaderImageFilter.cpp
+++ b/src/effects/SkRectShaderImageFilter.cpp
@@ -66,13 +66,15 @@ bool SkRectShaderImageFilter::onFilterImage(Proxy* proxy,
         return false;
     }
     SkCanvas canvas(device.get());
+
     SkPaint paint;
-    paint.setShader(fShader);
     SkMatrix matrix(ctx.ctm());
     matrix.postTranslate(SkIntToScalar(-bounds.left()), SkIntToScalar(-bounds.top()));
-    fShader->setLocalMatrix(matrix);
+    paint.setShader(SkShader::CreateLocalMatrixShader(fShader, matrix))->unref();
+
     SkRect rect = SkRect::MakeWH(SkIntToScalar(bounds.width()), SkIntToScalar(bounds.height()));
     canvas.drawRect(rect, paint);
+
     *result = device.get()->accessBitmap(false);
     offset->fX = bounds.fLeft;
     offset->fY = bounds.fTop;