adding preabandon flag to DM
BUG=skia:
Review URL: https://codereview.chromium.org/929243004
diff --git a/src/effects/gradients/SkGradientShader.cpp b/src/effects/gradients/SkGradientShader.cpp
index d2b8bc3..0f6599d 100644
--- a/src/effects/gradients/SkGradientShader.cpp
+++ b/src/effects/gradients/SkGradientShader.cpp
@@ -1130,6 +1130,9 @@
fTextureAccess.reset(fAtlas->getTexture(), params);
} else {
SkAutoTUnref<GrTexture> texture(GrRefCachedBitmapTexture(ctx, bitmap, ¶ms));
+ if (!texture) {
+ return;
+ }
fCoordTransform.reset(kCoordSet, matrix, texture, params.filterMode());
fTextureAccess.reset(texture, params);
fYCoord = SK_ScalarHalf;