Version 4.3.61.26 (cherry-pick)

Merged 5a93a330

Reland: Fix JSON parser Handle leak (previous CL 1041483004)

BUG=472504,v8:3976
LOG=N
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/1157393002

Cr-Commit-Position: refs/branch-heads/4.3@{#31}
Cr-Branched-From: f5c0a23a-refs/heads/4.3.61@{#1}
Cr-Branched-From: 0a7d4f49-refs/heads/master@{#27508}