Removed RuntimeProfilerRateLimiter class and RuntimeProfiler::IsSomeIsolateInJS.

src/platform-openbsd.cc

Index: src/platform-openbsd.cc
diff --git a/src/platform-openbsd.cc b/src/platform-openbsd.cc
index d4ab9a66ee7e6c50b8f7ddedde0907b680265ade..48ca2e88008bab89f9d1ee187411e05193e063e9 100644
--- a/src/platform-openbsd.cc
+++ b/src/platform-openbsd.cc
@@ -846,7 +846,7 @@ class SignalSender : public Thread {
         SamplerRegistry::IterateActiveSamplers(&DoCpuProfile, this);
       } else {
         if (signal_handler_installed_) RestoreSignalHandler();
-        if (rate_limiter_.SuspendIfNecessary()) continue;
+        if (RuntimeProfiler::WaitForSomeIsolateToEnterJS()) continue;
       }
       Sleep();  // TODO(svenpanne) Figure out if OS:Sleep(interval_) is enough.
     }
@@ -882,7 +882,6 @@ class SignalSender : public Thread {
 
   const int vm_tgid_;
   const int interval_;
-  RuntimeProfilerRateLimiter rate_limiter_;
 
   // Protects the process wide state below.
   static Mutex* mutex_;