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This patch adds xml RAPPOR entries for measuring the Device Motion and
Device Orientation APIs usage.
Corresponding blink-side patch: crrev.com/1017433002.
This patch replaces the chromium patch: crrev.com/1021823005.

BUG=467648

Review URL: https://codereview.chromium.org/1052013004

Cr-Commit-Position: refs/heads/master@{#325431}