Add ui/gfx/animation OWNERS

Also give a consistent team mailing list for threaded-rendering-dev@chromium.org

R=flackr@chromium.org, vollick@chromium.org

Change-Id: I1a80a98715af27baf8839caef6ecb4b3b2b25ff6
Reviewed-on: https://chromium-review.googlesource.com/576331Reviewed-by: Robert Flack <flackr@chromium.org>
Commit-Queue: danakj <danakj@chromium.org>
Cr-Commit-Position: refs/heads/master@{#487600}

cc/animation/OWNERS

 loyso@chromium.org
 
-# TEAM: style-dev@chromium.org
+# TEAM: threaded-rendering-dev@chromium.org
 # COMPONENT: Internals>Compositing>Animation

third_party/WebKit/Source/modules/compositorworker/OWNERS

@@ -4,4 +4,5 @@ flackr@chromium.org
 kinuko@chromium.org
 nhiroki@chromium.org
 
+# TEAM: threaded-rendering-dev@chromium.org
 # COMPONENT: Internals>Compositing>Animation

ui/gfx/animation/OWNERS

+flackr@chromium.org
+vollick@chromium.org
+
+# TEAM: threaded-rendering-dev@chromium.org
+# COMPONENT: Internals>Compositing>Animation