Move BrowserThread to content namespace.

content/public/browser/browser_thread.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_PUBLIC_BROWSER_BROWSER_THREAD_H_
 #define CONTENT_PUBLIC_BROWSER_BROWSER_THREAD_H_
 #pragma once
 
 #include "base/callback.h"
 #include "base/synchronization/lock.h"
 #include "base/task.h"
 #include "base/threading/thread.h"
 #include "content/common/content_export.h"
 
 #if defined(UNIT_TEST)
 #include "base/logging.h"
 #endif  // UNIT_TEST
 
 namespace base {
 class MessageLoopProxy;
 }
 
 namespace content {
+
 class BrowserThreadImpl;
-}
-
 class DeprecatedBrowserThread;
 
 ///////////////////////////////////////////////////////////////////////////////
 // BrowserThread
 //
 // Utility functions for threads that are known by a browser-wide
 // name.  For example, there is one IO thread for the entire browser
 // process, and various pieces of code find it useful to retrieve a
 // pointer to the IO thread's message loop.
 //
@@ skipping 206 matching lines @@
 // Temporary escape hatch for chrome/ to construct BrowserThread,
 // until we make content/ construct its own threads.
 class DeprecatedBrowserThread : public BrowserThread {
  public:
   explicit DeprecatedBrowserThread(BrowserThread::ID identifier);
   DeprecatedBrowserThread(BrowserThread::ID identifier,
                           MessageLoop* message_loop);
   virtual ~DeprecatedBrowserThread();
 };
 
+}  // namespace content
+
+// TODO(joi): Remove these ASAP.
+using content::BrowserThread;
+using content::DeprecatedBrowserThread;
+
 #endif  // CONTENT_PUBLIC_BROWSER_BROWSER_THREAD_H_