Simplify isolates access during stack iteration (WAS: Move SafeStackFrameIterator::active_count_...)

src/log.cc

 // Copyright 2009 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 173 matching lines @@
   sample->frames_count = i;
 }
 
 
 //
 // Ticker used to provide ticks to the profiler and the sliding state
 // window.
 //
 class Ticker: public Sampler {
  public:
-  explicit Ticker(Isolate* isolate, int interval):
+  Ticker(Isolate* isolate, int interval):
       Sampler(isolate, interval),
       window_(NULL),
       profiler_(NULL) {}
 
   ~Ticker() { if (IsActive()) Stop(); }
 
   virtual void Tick(TickSample* sample) {
     if (profiler_) profiler_->Insert(sample);
     if (window_) window_->AddState(sample->state);
   }
@@ skipping 1452 matching lines @@
 void SamplerRegistry::RemoveActiveSampler(Sampler* sampler) {
   ASSERT(sampler->IsActive());
   ScopedLock lock(mutex_);
   ASSERT(active_samplers_ != NULL);
   bool removed = active_samplers_->RemoveElement(sampler);
   ASSERT(removed);
   USE(removed);
 }
 
 } }  // namespace v8::internal