RFR: 8269636: Change outputStream's print_raw() and print_raw_cr() second parameter to size_t type

[Calvin Cheung]

Please review this small cleanup so that the callers of outputStream's `print_raw()` don't need to typecast the second arg to int.

Testing:
- [x] Tiers1,2

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Commit messages:
 - 8269636: Change outputStream's print_raw() and print_raw_cr() second parameter to size_t type

Changes: https://git.openjdk.java.net/jdk/pull/4814/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=4814&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8269636
  Stats: 4 lines in 3 files changed: 0 ins; 0 del; 4 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4814.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4814/head:pull/4814

PR: https://git.openjdk.java.net/jdk/pull/4814