Removed RuntimeProfilerRateLimiter class and RuntimeProfiler::IsSomeIsolateInJS.

src/runtime-profiler.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 412 matching lines @@
   // The profiler thread must still be waiting.
   ASSERT(NoBarrier_Load(&state_) >= 0);
   // In IsolateEnteredJS we have already incremented the counter and
   // undid the decrement done by the profiler thread. Increment again
   // to get the right count of active isolates.
   NoBarrier_AtomicIncrement(&state_, 1);
   semaphore.Pointer()->Signal();
 }
 
 
-bool RuntimeProfiler::IsSomeIsolateInJS() {
-  return NoBarrier_Load(&state_) > 0;
-}
-
-
 bool RuntimeProfiler::WaitForSomeIsolateToEnterJS() {
   Atomic32 old_state = NoBarrier_CompareAndSwap(&state_, 0, -1);
   ASSERT(old_state >= -1);
   if (old_state != 0) return false;
   semaphore.Pointer()->Wait();
   return true;
 }
 
 
 void RuntimeProfiler::StopRuntimeProfilerThreadBeforeShutdown(Thread* thread) {
@@ skipping 29 matching lines @@
 }
 
 
 void RuntimeProfiler::UpdateSamplesAfterCompact(ObjectVisitor* visitor) {
   for (int i = 0; i < kSamplerWindowSize; i++) {
     visitor->VisitPointer(&sampler_window_[i]);
   }
 }
 
 
-bool RuntimeProfilerRateLimiter::SuspendIfNecessary() {
-  if (!RuntimeProfiler::IsSomeIsolateInJS()) {
-    return RuntimeProfiler::WaitForSomeIsolateToEnterJS();
-  }
-  return false;
-}
-
-
 } }  // namespace v8::internal