Linux: move X operations from the IO to UI2 thread.

chrome/browser/chrome_thread.cc

 // Copyright (c) 2006-2008 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/chrome_thread.h"
 
 // Friendly names for the well-known threads.
 static const char* chrome_thread_names[ChromeThread::ID_COUNT] = {
   "Chrome_IOThread",  // IO
   "Chrome_FileThread",  // FILE
   "Chrome_DBThread",  // DB
+  "Chrome_HistoryThread",  // HISTORY
+#if defined(OS_LINUX)
+  "Chrome_Background_X11Thread",  // BACKGROUND_X11
+#endif
 };
 
 Lock ChromeThread::lock_;
 
 ChromeThread* ChromeThread::chrome_threads_[ID_COUNT] = {
   NULL,  // IO
   NULL,  // FILE
   NULL,  // DB
+  NULL,  // HISTORY
+#if defined(OS_LINUX)
+  NULL,  // BACKGROUND_X11
+#endif
 };
 
 ChromeThread::ChromeThread(ChromeThread::ID identifier)
     : Thread(chrome_thread_names[identifier]),
       identifier_(identifier) {
   AutoLock lock(lock_);
   DCHECK(identifier >= 0 && identifier < ID_COUNT);
   DCHECK(chrome_threads_[identifier] == NULL);
   chrome_threads_[identifier_] = this;
 }
 
 ChromeThread::~ChromeThread() {
   AutoLock lock(lock_);
   chrome_threads_[identifier_] = NULL;
 }
 
 // static
 MessageLoop* ChromeThread::GetMessageLoop(ID identifier) {
   AutoLock lock(lock_);
   DCHECK(identifier >= 0 && identifier < ID_COUNT);
 
   if (chrome_threads_[identifier])
     return chrome_threads_[identifier]->message_loop();
 
   return NULL;
 }