Move BrowserThread to content namespace.

chrome/browser/printing/printing_message_filter.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 CHROME_BROWSER_PRINTING_PRINTING_MESSAGE_FILTER_H_
 #define CHROME_BROWSER_PRINTING_PRINTING_MESSAGE_FILTER_H_
 #pragma once
 
 #include <string>
 
@@ skipping 15 matching lines @@
 }
 
 // This class filters out incoming printing related IPC messages for the
 // renderer process on the IPC thread.
 class PrintingMessageFilter : public BrowserMessageFilter {
  public:
   PrintingMessageFilter();
 
   // BrowserMessageFilter methods.
   virtual void OverrideThreadForMessage(const IPC::Message& message,
-                                        BrowserThread::ID* thread);
+                                        content::BrowserThread::ID* thread);
   virtual bool OnMessageReceived(const IPC::Message& message,
                                  bool* message_was_ok);
 
  private:
   virtual ~PrintingMessageFilter();
 
 #if defined(OS_WIN)
   // Used to pass resulting EMF from renderer to browser in printing.
   void OnDuplicateSection(base::SharedMemoryHandle renderer_handle,
                           base::SharedMemoryHandle* browser_handle);
@@ skipping 35 matching lines @@
   void OnCheckForCancel(const std::string& preview_ui_addr,
                         int preview_request_id,
                         bool* cancel);
 
   printing::PrintJobManager* print_job_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintingMessageFilter);
 };
 
 #endif  // CHROME_BROWSER_PRINTING_PRINTING_MESSAGE_FILTER_H_