share all the needed linux code with OpenBSD in chrome and content

content/browser/zygote_host_linux.cc

Index: content/browser/zygote_host_linux.cc
diff --git a/content/browser/zygote_host_linux.cc b/content/browser/zygote_host_linux.cc
index a0ca2fc9b2b7254698e5d71b6fafc6fb08268630..19dddd24c7010def2b25489dfbe535839d2774d6 100644
--- a/content/browser/zygote_host_linux.cc
+++ b/content/browser/zygote_host_linux.cc
@@ -306,6 +306,7 @@ pid_t ZygoteHost::ForkRequest(
       return base::kNullProcessHandle;
   }
 
+#if !defined(OS_OPENBSD)
   // This is just a starting score for a renderer or extension (the
   // only types of processes that will be started this way).  It will
   // get adjusted as time goes on.  (This is the same value as
@@ -313,10 +314,12 @@ pid_t ZygoteHost::ForkRequest(
   // that's not something we can include here.)
   const int kLowestRendererOomScore = 300;
   AdjustRendererOOMScore(pid, kLowestRendererOomScore);
+#endif
 
   return pid;
 }
 
+#if !defined(OS_OPENBSD)
 void ZygoteHost::AdjustRendererOOMScore(base::ProcessHandle pid, int score) {
   // 1) You can't change the oom_score_adj of a non-dumpable process
   //    (EPERM) unless you're root. Because of this, we can't set the
@@ -383,6 +386,7 @@ void ZygoteHost::AdjustRendererOOMScore(base::ProcessHandle pid, int score) {
       PLOG(ERROR) << "Failed to adjust OOM score of renderer with pid " << pid;
   }
 }
+#endif
 
 void ZygoteHost::EnsureProcessTerminated(pid_t process) {
   DCHECK(init_);