[SPv175] Correct DragImage property tree state

Bug: 771643
Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel;master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
Change-Id: I5deb3767069e430c9b22c809c83c27b67e0c45cb
Reviewed-on: https://chromium-review.googlesource.com/879231
Commit-Queue: Xianzhu Wang <wangxianzhu@chromium.org>
Reviewed-by: Chris Harrelson <chrishtr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#531122}
2 files changed