allow fiddles to use the futex system call; fixes fonts finally

BUG=skia:

Review URL: https://codereview.chromium.org/639013002

diff --git a/experimental/webtry/main.cpp b/experimental/webtry/main.cpp
index b2c06c0..0a71d96 100644 (file)
--- a/experimental/webtry/main.cpp
+++ b/experimental/webtry/main.cpp
@@ -38,6 +38,7 @@ static bool install_syscall_filter() {
         ALLOW_SYSCALL(mmap),
         ALLOW_SYSCALL(munmap),
         ALLOW_SYSCALL(brk),
+        ALLOW_SYSCALL(futex),
         KILL_PROCESS,
     };
     struct sock_fprog prog = {