Add ability to retrieve a thread_name given a thread_id.

base/threading/thread.cc

 // Copyright (c) 2012 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.
 
 #include "base/threading/thread.h"
 
 #include "base/bind.h"
 #include "base/lazy_instance.h"
 #include "base/third_party/dynamic_annotations/dynamic_annotations.h"
+#include "base/threading/thread_id_name_manager.h"
 #include "base/threading/thread_local.h"
 #include "base/threading/thread_restrictions.h"
 #include "base/synchronization/waitable_event.h"
 
 #if defined(OS_WIN)
 #include "base/win/scoped_com_initializer.h"
 #endif
 
 namespace base {
 
@@ skipping 38 matching lines @@
       running_(false),
       startup_data_(NULL),
       thread_(0),
       message_loop_(NULL),
       thread_id_(kInvalidThreadId),
       name_(name) {
 }
 
 Thread::~Thread() {
   Stop();
+  ThreadIdNameManager::GetInstance()->RemoveName(thread_id_);
 }
 
 bool Thread::Start() {
   Options options;
 #if defined(OS_WIN)
   if (com_status_ == STA)
     options.message_loop_type = MessageLoop::TYPE_UI;
 #endif
   return StartWithOptions(options);
 }
@@ skipping 126 matching lines @@
 
     // Assert that MessageLoop::Quit was called by ThreadQuitHelper.
     DCHECK(GetThreadWasQuitProperly());
 
     // We can't receive messages anymore.
     message_loop_ = NULL;
   }
 }
 
 }  // namespace base