More miscellaneous bools.

Change-Id: I0960fed68ef39e4523ef9f2ba89ffa92f09c4dce
Reviewed-on: https://boringssl-review.googlesource.com/19945
Reviewed-by: Steven Valdez <svaldez@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>

ssl/d1_pkt.cc

diff --git a/ssl/d1_pkt.cc b/ssl/d1_pkt.cc
index 7a1c229..a3095e1 100644
--- a/ssl/d1_pkt.cc
+++ b/ssl/d1_pkt.cc
@@ -205,11 +205,11 @@
   return -1;
 }
 
-int dtls1_read_app_data(SSL *ssl, int *out_got_handshake, uint8_t *buf, int len,
-                        int peek) {
+int dtls1_read_app_data(SSL *ssl, bool *out_got_handshake, uint8_t *buf,
+                        int len, int peek) {
   assert(!SSL_in_init(ssl));
 
-  *out_got_handshake = 0;
+  *out_got_handshake = false;
   SSL3_RECORD *rr = &ssl->s3->rrec;
 
 again:
@@ -298,10 +298,10 @@
   }
 }
 
-int dtls1_write_app_data(SSL *ssl, int *out_needs_handshake, const uint8_t *buf,
-                         int len) {
+int dtls1_write_app_data(SSL *ssl, bool *out_needs_handshake,
+                         const uint8_t *buf, int len) {
   assert(!SSL_in_init(ssl));
-  *out_needs_handshake = 0;
+  *out_needs_handshake = false;
 
   if (len > SSL3_RT_MAX_PLAIN_LENGTH) {
     OPENSSL_PUT_ERROR(SSL, SSL_R_DTLS_MESSAGE_TOO_BIG);