Convert remaining instances of scoped_ptr::Pass() to std::move.
Convert remaining instances of scoped_ptr::Pass() to std::move.

R=dtrainor@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1501483002

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#363244}

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