commit 601b6bfa2b363e4c1acc4ab599f30ccde43b8a06
author Yuki Shiino <yukishiino@chromium.org> Mon Feb 13 12:48:21 2017
committer Yuki Shiino <yukishiino@chromium.org> Mon Feb 13 12:48:21 2017
tree 7baf8d34965c0db7c587c4c42a511df9c73ef8e3
parent 64b93ef03c4ccb40140d96509d7213891b01d778

binding: Sets location[Symbol.toPrimitive].

Let the location objects have Symbol.toPrimitive property
as an unconfiguable own property, so that author scripts
cannot inject nor overwrite it.

BUG=680409

Review-Url: https://codereview.chromium.org/2656973002
Cr-Commit-Position: refs/heads/master@{#446991}
(cherry picked from commit 1f959adce3efa86d7d9560f9642c6ae816f8d81c)

Review-Url: https://codereview.chromium.org/2692873002 .
Cr-Commit-Position: refs/branch-heads/2987@{#472}
Cr-Branched-From: ad51088c0e8776e8dcd963dbe752c4035ba6dab6-refs/heads/master@{#444943}