The evaluation order of receiver versus arguments is not properly
defined by C++. This caused issues with Clang where the environment
changed after the receiveing environment was already loaded.

R=jarin@chromium.org
BUG=chromium:467531
LOG=N

Review URL: https://codereview.chromium.org/1011123002

Cr-Commit-Position: refs/heads/master@{#27240}