Fillrect Gradient Zero Stops

third_party/blink/web_tests/fast/canvas/fillrect-gradient-zero-stops.html

150.0.7829.2290 B

The canvas below should show a gradient with zero stops, which according to the specification is filled with transparant black, ie. not visible. This tests Bug 13784, REGRESSION (r13744-13750): Crash with empty gradient when drawing to canvas