"Deiceolate" Thread classes.

src/platform-linux.cc

Index: src/platform-linux.cc
diff --git a/src/platform-linux.cc b/src/platform-linux.cc
index 0723a58c82e156a946c5b7f8aaa0a219ce5b0202..228d6f4d1313586329454bc71744ec9b6f66b526 100644
--- a/src/platform-linux.cc
+++ b/src/platform-linux.cc
@@ -653,17 +653,15 @@ 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);
 }
@@ -684,7 +682,6 @@ static void* ThreadEntry(void* arg) {
         0, 0, 0);
   thread->data()->thread_ = pthread_self();
   ASSERT(thread->data()->thread_ != kNoThread);
-  Thread::SetThreadLocal(Isolate::isolate_key(), thread->isolate());
   thread->Run();
   return NULL;
 }
@@ -974,7 +971,7 @@ class SignalSender : public Thread {
   };
 
   explicit SignalSender(int interval)
-      : Thread(NULL, "SignalSender"),
+      : Thread("SignalSender"),
         vm_tgid_(getpid()),
         interval_(interval) {}