Version 4.3.61.14 (cherry-pick)

Merged 6b59e1f1

Don't crash when reporting an access check failure for a detached global proxy

BUG=chromium:475884
LOG=N
R=hablich@chromium.org

Review URL: https://codereview.chromium.org/1101253003

Cr-Commit-Position: refs/branch-heads/4.3@{#17}
Cr-Branched-From: f5c0a23a-refs/heads/4.3.61@{#1}
Cr-Branched-From: 0a7d4f49-refs/heads/master@{#27508}