Simplify threading in browser thread by making only ChromeThread deal with di...

chrome/browser/browser_process_impl.cc

 // Copyright (c) 2009 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_process_impl.h"
 
 #include "app/clipboard/clipboard.h"
 #include "app/l10n_util.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
@@ skipping 456 matching lines @@
 
   // Finally, tell the renderers which don't derive from ChildProcess.
   // Messages to the renderers must be done on the UI (main) thread.
   for (RenderProcessHost::iterator i(RenderProcessHost::AllHostsIterator());
        !i.IsAtEnd(); i.Advance())
     i.GetCurrentValue()->Send(new ViewMsg_SetIPCLoggingEnabled(enable));
 }
 
 // Helper for SetIPCLoggingEnabled.
 void BrowserProcessImpl::SetIPCLoggingEnabledForChildProcesses(bool enabled) {
-  DCHECK(MessageLoop::current() ==
-         ChromeThread::GetMessageLoop(ChromeThread::IO));
+  DCHECK(ChromeThread::CurrentlyOn(ChromeThread::IO));
 
   ChildProcessHost::Iterator i;  // default constr references a singleton
   while (!i.Done()) {
     i->Send(new PluginProcessMsg_SetIPCLoggingEnabled(enabled));
     ++i;
   }
 }
 
 #endif  // IPC_MESSAGE_LOG_ENABLED
 
 void BrowserProcessImpl::DoInspectorFilesCheck() {
   // Runs on FILE thread.
   DCHECK(file_thread_->message_loop() == MessageLoop::current());
   bool result = false;
 
   FilePath inspector_dir;
   if (PathService::Get(chrome::DIR_INSPECTOR, &inspector_dir)) {
     result = file_util::PathExists(inspector_dir);
   }
 
   have_inspector_files_ = result;
 }