Solve Daniel's review of apr_random_t usage (need entropy) by using APR's other interface for generating random bytes.
Solve Daniel's review of apr_random_t usage (need entropy) by using
APR's other interface for generating random bytes.

* subversion/libsvn_subr/crypto.c:
  (svn_crypto__ctx_t): note possible future use of apr_random_t
  (get_random_bytes): take a CTX, rename to RESULT_POOL. rejigger the
    code to use apr_generate_random_bytes()
  (svn_crypto__context_create): note possible apr_random_t usage
  (svn_crypto__encrypt_cstring): pass the CTX to get_random_bytes()


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1307917 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion