Fix memory leak: adopt rather than ref GrTexture* in GrTextureStripAtlas

This was introduced in: https://skia-review.googlesource.com/c/8881/ (Switch GrTextureStripAtlas over to GrTextureProxies)

Change-Id: I6635e9fee9f63d703373b31c31fda459f5b63763
Reviewed-on: https://skia-review.googlesource.com/8916
Reviewed-by: Brian Salomon <bsalomon@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
1 file changed