content: Remove 16 exit time destructors and 15 static initializers.

content/browser/browser_thread_impl.h

 // Copyright (c) 2011 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 CONTENT_BROWSER_BROWSER_THREAD_IMPL_H_
 #define CONTENT_BROWSER_BROWSER_THREAD_IMPL_H_
 #pragma once
 
 #include "content/common/content_export.h"
 #include "content/public/browser/browser_thread.h"
@@ skipping 19 matching lines @@
       const tracked_objects::Location& from_here,
       Task* task,
       int64 delay_ms,
       bool nestable);
   static bool PostTaskHelper(
       BrowserThread::ID identifier,
       const tracked_objects::Location& from_here,
       const base::Closure& task,
       int64 delay_ms,
       bool nestable);
-
-  // This lock protects |browser_threads_|.  Do not read or modify that array
-  // without holding this lock.  Do not block while holding this lock.
-  static base::Lock lock_;
-
-  // An array of the BrowserThread objects.  This array is protected by |lock_|.
-  // The threads are not owned by this array.  Typically, the threads are owned
-  // on the UI thread by the g_browser_process object.  BrowserThreads remove
-  // themselves from this array upon destruction.
-  static BrowserThread* browser_threads_[ID_COUNT];
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BROWSER_THREAD_IMPL_H_