Another batch of bools.

Change-Id: I5a7688b6e635e7ee6fc16173f9919bff16c4d59d
Reviewed-on: https://boringssl-review.googlesource.com/31604
Commit-Queue: Steven Valdez <svaldez@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: Steven Valdez <svaldez@google.com>
diff --git a/ssl/ssl_key_share.cc b/ssl/ssl_key_share.cc
index 866da67..8466eab 100644
--- a/ssl/ssl_key_share.cc
+++ b/ssl/ssl_key_share.cc
@@ -266,30 +266,30 @@
          Finish(out_secret, out_alert, peer_key);
 }
 
-int ssl_nid_to_group_id(uint16_t *out_group_id, int nid) {
+bool ssl_nid_to_group_id(uint16_t *out_group_id, int nid) {
   for (const auto &group : kNamedGroups) {
     if (group.nid == nid) {
       *out_group_id = group.group_id;
-      return 1;
+      return true;
     }
   }
-  return 0;
+  return false;
 }
 
-int ssl_name_to_group_id(uint16_t *out_group_id, const char *name, size_t len) {
+bool ssl_name_to_group_id(uint16_t *out_group_id, const char *name, size_t len) {
   for (const auto &group : kNamedGroups) {
     if (len == strlen(group.name) &&
         !strncmp(group.name, name, len)) {
       *out_group_id = group.group_id;
-      return 1;
+      return true;
     }
     if (len == strlen(group.alias) &&
         !strncmp(group.alias, name, len)) {
       *out_group_id = group.group_id;
-      return 1;
+      return true;
     }
   }
-  return 0;
+  return false;
 }
 
 BSSL_NAMESPACE_END