Reduce internal explicit SaveFlags usage.

tests/ImageFilterTest.cpp

Index: tests/ImageFilterTest.cpp
diff --git a/tests/ImageFilterTest.cpp b/tests/ImageFilterTest.cpp
index cfa7c6f79dd70520343457fb0040bac76f0f4186..fe14a52246e07d92288c29a3ce0a6ba092c66ef9 100644
--- a/tests/ImageFilterTest.cpp
+++ b/tests/ImageFilterTest.cpp
@@ -285,9 +285,7 @@ DEF_TEST(ImageFilterMatrixTest, reporter) {
     SkAutoTUnref<MatrixTestImageFilter> imageFilter(
         new MatrixTestImageFilter(reporter, expectedMatrix));
     paint.setImageFilter(imageFilter.get());
-    SkCanvas::SaveFlags saveFlags = static_cast<SkCanvas::SaveFlags>(
-        SkCanvas::kHasAlphaLayer_SaveFlag | SkCanvas::kFullColorLayer_SaveFlag);
-    recordingCanvas->saveLayer(NULL, &paint, saveFlags);
+    recordingCanvas->saveLayer(NULL, &paint);
     SkPaint solidPaint;
     solidPaint.setColor(0xFFFFFFFF);
     recordingCanvas->save();