port 7281f801 (r29384)

    Fix a bug in R29384.

original commit message:

    Revert "Revert relanded strong property access CL"

    Regression issues should be solved. Initial patchset is the original, subsequent patchsets are the fixing modifications.

    This reverts commit 4ac7be56.

BUG=

Review URL: https://codereview.chromium.org/1210873007

Cr-Commit-Position: refs/heads/master@{#29434}