GitLab

Put webview_cts_tests behind public_android_sdk since
system_webview_apk dependency is behind public_android_sdk.

Remove override on Picture.writeToStream which has been removed.

Bug: 904912
Change-Id: Idcda7dbcb31d5bb02926e2b6743f369f988426d6
Reviewed-on: https://chromium-review.googlesource.com/c/1335955Reviewed-by: Shimi Zhang <ctzsm@chromium.org>
Commit-Queue: Bo <boliu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#608104}