Adding support for non joinable threads to PlatformThread

base/platform_thread.h

 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // WARNING: You should *NOT* be using this class directly.  PlatformThread is
 // the low-level platform-specific abstraction to the OS's threading interface.
 // You should instead be using a message-loop driven Thread, see thread.h.
 
 #ifndef BASE_PLATFORM_THREAD_H_
 #define BASE_PLATFORM_THREAD_H_
@@ skipping 47 matching lines @@
   // that the default stack size should be used.  Upon success,
   // |*thread_handle| will be assigned a handle to the newly created thread,
   // and |delegate|'s ThreadMain method will be executed on the newly created
   // thread.
   // NOTE: When you are done with the thread handle, you must call Join to
   // release system resources associated with the thread.  You must ensure that
   // the Delegate object outlives the thread.
   static bool Create(size_t stack_size, Delegate* delegate,
                      PlatformThreadHandle* thread_handle);
 
+  // CreateNonJoinable() does the same thing as Create() except the thread
+  // cannot be Join()'d.  Therefore, it also does not output a
+  // PlatformThreadHandle.
+  static bool CreateNonJoinable(size_t stack_size, Delegate* delegate);
+
   // Joins with a thread created via the Create function.  This function blocks
   // the caller until the designated thread exits.  This will invalidate
   // |thread_handle|.
   static void Join(PlatformThreadHandle thread_handle);
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(PlatformThread);
 };
 
 #endif  // BASE_PLATFORM_THREAD_H_
-