"Deiceolate" Thread classes.

src/platform-macos.cc

Index: src/platform-macos.cc
diff --git a/src/platform-macos.cc b/src/platform-macos.cc
index 3e10b6a1124bb0aedb937d8adc5dfe5ac21abf60..cdbbb12d4a62dad918e38aa760ff9ad59e07143a 100644
--- a/src/platform-macos.cc
+++ b/src/platform-macos.cc
@@ -398,17 +398,15 @@ class Thread::PlatformData : public Malloced {
   pthread_t thread_;  // Thread handle for pthread.
 };
 
-Thread::Thread(Isolate* isolate, const Options& options)
+Thread::Thread(const Options& options)
     : data_(new PlatformData),
-      isolate_(isolate),
       stack_size_(options.stack_size) {
   set_name(options.name);
 }
 
 
-Thread::Thread(Isolate* isolate, const char* name)
+Thread::Thread(const char* name)
     : data_(new PlatformData),
-      isolate_(isolate),
       stack_size_(0) {
   set_name(name);
 }
@@ -444,7 +442,6 @@ static void* ThreadEntry(void* arg) {
   thread->data()->thread_ = pthread_self();
   SetThreadName(thread->name());
   ASSERT(thread->data()->thread_ != kNoThread);
-  Thread::SetThreadLocal(Isolate::isolate_key(), thread->isolate());
   thread->Run();
   return NULL;
 }
@@ -670,7 +667,7 @@ class Sampler::PlatformData : public Malloced {
 class SamplerThread : public Thread {
  public:
   explicit SamplerThread(int interval)
-      : Thread(NULL, "SamplerThread"),
+      : Thread("SamplerThread"),
         interval_(interval) {}
 
   static void AddActiveSampler(Sampler* sampler) {