Make tabs be 2 spaces wide.
Make tabs be 2 spaces wide.

The default is 8 which is really wide. Go code uses real tabs too which
means it looks super indented compared to all the other languages we
use that mandate indention is 2 spaces (or 4 for webkit style).

BUG=476121

Review URL: https://codereview.chromium.org/1055013005

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