Move base/thread.h to base/threading, fix up callers to use the new location....

chrome/browser/browser_thread.cc

 // Copyright (c) 2010 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 "chrome/browser/browser_thread.h"
 
 #include "base/message_loop.h"
 #include "base/message_loop_proxy.h"
-#include "base/thread_restrictions.h"
+#include "base/threading/thread_restrictions.h"
 
 // Friendly names for the well-known threads.
 static const char* browser_thread_names[BrowserThread::ID_COUNT] = {
   "",  // UI (name assembled in browser_main.cc).
   "Chrome_DBThread",  // DB
   "Chrome_WebKitThread",  // WEBKIT
   "Chrome_FileThread",  // FILE
   "Chrome_ProcessLauncherThread",  // PROCESS_LAUNCHER
   "Chrome_CacheThread",  // CACHE
   "Chrome_IOThread",  // IO
@@ skipping 204 matching lines @@
     }
   } else {
     delete task;
   }
 
   if (!guaranteed_to_outlive_target_thread)
     lock_.Release();
 
   return !!message_loop;
 }