url: Remove basictypes.h includes.

Use the standard integer types from stdint.h instead.

We don't need basictypes.h for other things otherwise.

BUG=138542
TEST=url_unittests
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Review URL: https://codereview.chromium.org/1135713005

Cr-Commit-Position: refs/heads/master@{#329117}
2 files changed