Make it possible to use ThreadLocalStorage::Slot as a static without

base/tracked_objects.h

 // 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.
 
 #ifndef BASE_TRACKED_OBJECTS_H_
 #define BASE_TRACKED_OBJECTS_H_
 #pragma once
 
 #include <map>
 #include <set>
@@ skipping 526 matching lines @@
   // using the data structures, then the |leak| argument should be passed in as
   // true, and the data structures (birth maps, death maps, ThreadData
   // insntances, etc.) will be leaked and not deleted.  If you have joined all
   // threads since the time that InitializeAndSetTrackingStatus() was called,
   // then you can pass in a |leak| value of false, and this function will
   // delete recursively all data structures, starting with the list of
   // ThreadData instances.
   static void ShutdownSingleThreadedCleanup(bool leak);
 
   // We use thread local store to identify which ThreadData to interact with.
-  static base::ThreadLocalStorage::Slot tls_index_;
+  static base::ThreadLocalStorage::StaticSlot tls_index_;
 
   // List of ThreadData instances for use with worker threads. When a worker
   // thread is done (terminated), we push it onto this llist.  When a new worker
   // thread is created, we first try to re-use a ThreadData instance from the
   // list, and if none are available, construct a new one.
   // This is only accessed while list_lock_ is held.
   static ThreadData* first_retired_worker_;
 
   // Link to the most recently created instance (starts a null terminated list).
   // The list is traversed by about:profiler when it needs to snapshot data.
@@ skipping 165 matching lines @@
   }
 
  private:
 
   DISALLOW_COPY_AND_ASSIGN(AutoTracking);
 };
 
 }  // namespace tracked_objects
 
 #endif  // BASE_TRACKED_OBJECTS_H_