Forward Animate Property from BridgedNativeWidget to NSWindow

Scenarios like dragging a window out of the tabstrip disable animations.
This change forwards that request to NSWindow so the animation disable
request is respected.

BUG=863625

Change-Id: Ie25def791d30d35d7df804c4348fbad6cd0ae5ff
Reviewed-on: https://chromium-review.googlesource.com/1138814
Reviewed-by: Elly Fong-Jones <ellyjones@chromium.org>
Commit-Queue: Robert Liao <robliao@chromium.org>
Cr-Commit-Position: refs/heads/master@{#575652}
3 files changed