Add backdrop-filter to cc::EffectNode::ToString()

Change-Id: Ic629921bdc6280c19a9c2d0962bbfa37faba70fe
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1670117
Auto-Submit: Mason Freed <masonfreed@chromium.org>
Reviewed-by: vmpstr <vmpstr@chromium.org>
Commit-Queue: Mason Freed <masonfreed@chromium.org>
Cr-Commit-Position: refs/heads/master@{#672135}
1 file changed