Make nesting/running states a RunLoop rather than a MessageLoop concept.

content/browser/browser_thread_impl.cc

 // 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.
 
 #include "content/browser/browser_thread_impl.h"
 
 #include <string>
 #include <utility>
 
 #include "base/atomicops.h"
@@ skipping 200 matching lines @@
     DCHECK(globals.task_runners[identifier_]->RunsTasksOnCurrentThread());
   }
 #endif  // DCHECK_IS_ON()
 
   if (identifier_ == BrowserThread::DB ||
       identifier_ == BrowserThread::FILE ||
       identifier_ == BrowserThread::FILE_USER_BLOCKING ||
       identifier_ == BrowserThread::PROCESS_LAUNCHER ||
       identifier_ == BrowserThread::CACHE) {
     // Nesting and task observers are not allowed on redirected threads.
-    message_loop()->DisallowNesting();
+    base::RunLoop::DisallowNestingOnCurrentThread();
     message_loop()->DisallowTaskObservers();
   }
 
   if (identifier_ == BrowserThread::IO) {
     BrowserThreadDelegateAtomicPtr delegate =
         base::subtle::NoBarrier_Load(&globals.io_thread_delegate);
     if (delegate)
       reinterpret_cast<BrowserThreadDelegate*>(delegate)->Init();
   }
 }
@@ skipping 450 matching lines @@
   BrowserThreadDelegateAtomicPtr old_delegate =
       base::subtle::NoBarrier_AtomicExchange(
           &globals.io_thread_delegate,
           reinterpret_cast<BrowserThreadDelegateAtomicPtr>(delegate));
 
   // This catches registration when previously registered.
   DCHECK(!delegate || !old_delegate);
 }
 
 }  // namespace content