Move Thread Name Mapping into ThreadFunc.

base/threading/platform_thread_posix.cc

Index: base/threading/platform_thread_posix.cc
diff --git a/base/threading/platform_thread_posix.cc b/base/threading/platform_thread_posix.cc
index 43e58b73375a0c3273422d9c28e10150d3835197..744019456c83115e7b7b1593d4ed94174ce47d71 100644
--- a/base/threading/platform_thread_posix.cc
+++ b/base/threading/platform_thread_posix.cc
@@ -46,6 +46,7 @@ struct ThreadParams {
   PlatformThread::Delegate* delegate;
   bool joinable;
   ThreadPriority priority;
+  PlatformThreadHandle* thread_handle;
 };
 
 void SetCurrentThreadPriority(ThreadPriority priority) {
@@ -91,6 +92,10 @@ void* ThreadFunc(void* params) {
   if (thread_params->priority != kThreadPriority_Normal)
     SetCurrentThreadPriority(thread_params->priority);
 
+  ThreadIdNameManager::GetInstance()->RegisterThread(
+      thread_params->thread_handle,
+      PlatformThread::CurrentId());
+
   delete thread_params;
   delegate->ThreadMain();
 #if defined(OS_ANDROID)
@@ -155,6 +160,7 @@ bool CreateThread(size_t stack_size, bool joinable,
   params->delegate = delegate;
   params->joinable = joinable;
   params->priority = priority;
+  params->thread_handle = thread_handle;
 
   int err = pthread_create(thread_handle, &attributes, ThreadFunc, params);
   success = !err;