Revert 66719 - Reland r65996. Disallows Singletons on non-joinable thread....

base/platform_thread_posix.cc

Index: base/platform_thread_posix.cc
===================================================================
--- base/platform_thread_posix.cc	(revision 66790)
+++ base/platform_thread_posix.cc	(working copy)
@@ -7,11 +7,6 @@
 #include <errno.h>
 #include <sched.h>
 
-#include "base/logging.h"
-#include "base/safe_strerror_posix.h"
-#include "base/scoped_ptr.h"
-#include "base/thread_restrictions.h"
-
 #if defined(OS_MACOSX)
 #include <mach/mach.h>
 #include <sys/resource.h>
@@ -29,27 +24,18 @@
 #include <sys/nacl_syscalls.h>
 #endif
 
+#include "base/logging.h"
+#include "base/safe_strerror_posix.h"
+
 #if defined(OS_MACOSX)
 namespace base {
 void InitThreading();
 }  // namespace base
 #endif
 
-namespace {
-
-struct ThreadParams {
-  PlatformThread::Delegate* delegate;
-  bool joinable;
-};
-
-}  // namespace
-
-static void* ThreadFunc(void* params) {
-  ThreadParams* thread_params = static_cast<ThreadParams*>(params);
-  PlatformThread::Delegate* delegate = thread_params->delegate;
-  if (!thread_params->joinable)
-    base::ThreadRestrictions::SetSingletonAllowed(false);
-  delete thread_params;
+static void* ThreadFunc(void* closure) {
+  PlatformThread::Delegate* delegate =
+      static_cast<PlatformThread::Delegate*>(closure);
   delegate->ThreadMain();
   return NULL;
 }
@@ -188,14 +174,9 @@
   if (stack_size > 0)
     pthread_attr_setstacksize(&attributes, stack_size);
 
-  ThreadParams* params = new ThreadParams;
-  params->delegate = delegate;
-  params->joinable = joinable;
-  success = !pthread_create(thread_handle, &attributes, ThreadFunc, params);
+  success = !pthread_create(thread_handle, &attributes, ThreadFunc, delegate);
 
   pthread_attr_destroy(&attributes);
-  if (!success)
-    delete params;
   return success;
 }