Add ability to retrieve a thread_name given a thread_id.

base/threading/platform_thread_win.cc

Index: base/threading/platform_thread_win.cc
diff --git a/base/threading/platform_thread_win.cc b/base/threading/platform_thread_win.cc
index 82981adaf834b7a813cabf40756f4c2d59222ac5..25b96cc5ca075d04609cf684d7bf3fdac730dca9 100644
--- a/base/threading/platform_thread_win.cc
+++ b/base/threading/platform_thread_win.cc
@@ -7,6 +7,7 @@
 #include "base/debug/alias.h"
 #include "base/debug/profiler.h"
 #include "base/logging.h"
+#include "base/threading/thread_id_name_manager.h"
 #include "base/threading/thread_local.h"
 #include "base/threading/thread_restrictions.h"
 #include "base/tracked_objects.h"
@@ -118,6 +119,8 @@ void PlatformThread::Sleep(TimeDelta duration) {
 void PlatformThread::SetName(const char* name) {
   current_thread_name.Set(const_cast<char*>(name));
 
+  ThreadIdNameManager::GetInstance()->SetNameForId(CurrentId(), name);
+
   // On Windows only, we don't need to tell the profiler about the "BrokerEvent"
   // thread, as it exists only in the chrome.exe image, and never spawns or runs
   // tasks (items which could be profiled).  This test avoids the notification,