Removed RuntimeProfilerRateLimiter class and RuntimeProfiler::IsSomeIsolateInJS.

src/platform-solaris.cc

Index: src/platform-solaris.cc
diff --git a/src/platform-solaris.cc b/src/platform-solaris.cc
index 70f86596e838444e5e2481eab14b44496dd9fb7f..85a08d20568e2123eec3bab14bb98fac9d631cca 100644
--- a/src/platform-solaris.cc
+++ b/src/platform-solaris.cc
@@ -762,7 +762,7 @@ 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.
     }
@@ -797,7 +797,6 @@ class SignalSender : public Thread {
   }
 
   const int interval_;
-  RuntimeProfilerRateLimiter rate_limiter_;
 
   // Protects the process wide state below.
   static Mutex* mutex_;