Revert "Fix docgen Uri handling so it works on Windows." to fix tests.
Revert "Fix docgen Uri handling so it works on Windows." to fix tests.

This reverts commit r30364.

TBR

Review URL: https://codereview.chromium.org//83443006

git-svn-id: c93d8a2297af3b929165606efe145742a534bc71@30635 260f80e4-7a28-3924-810f-c04153c831b5

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