diff -up chromium-21.0.1180.81/third_party/tcmalloc/chromium/src/base/linuxthreads.cc.glibc216 chromium-21.0.1180.81/third_party/tcmalloc/chromium/src/base/linuxthreads.cc
--- chromium-21.0.1180.81/third_party/tcmalloc/chromium/src/base/linuxthreads.cc.glibc216	2012-08-30 20:34:00.324468082 -0400
+++ chromium-21.0.1180.81/third_party/tcmalloc/chromium/src/base/linuxthreads.cc	2012-08-30 20:34:15.458468310 -0400
@@ -193,7 +193,7 @@ static volatile int *sig_pids, sig_num_t
 /* Signal handler to help us recover from dying while we are attached to
  * other threads.
  */
-static void SignalHandler(int signum, siginfo_t *si, void *data) {
+static void SignalHandler(int signum, siginfo *si, void *data) {
   if (sig_pids != NULL) {
     if (signum == SIGABRT) {
       while (sig_num_threads-- > 0) {