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It should not be necessary to declare this variable at the top of this
gyp file. If it is necessary to declare this variable, this is not the
place to declare it anyway (which also looks pretty random).

BUG=None
TEST=components_unittests
R=blundell@chromium.org

Review URL: https://codereview.chromium.org/866553004

Cr-Commit-Position: refs/heads/master@{#315285}