Move MessageLoop to base namespace.

chrome/browser/printing/printer_query.h

 // 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.
 
 #ifndef CHROME_BROWSER_PRINTING_PRINTER_QUERY_H_
 #define CHROME_BROWSER_PRINTING_PRINTER_QUERY_H_
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/printing/print_job_worker_owner.h"
 #include "printing/print_job_constants.h"
 #include "ui/gfx/native_widget_types.h"
 
-class MessageLoop;
-
 namespace base {
 class DictionaryValue;
+class MessageLoop;
 }
 
 namespace printing {
 
   class PrintDestinationInterface;
   class PrintJobWorker;
 
 // Query the printer for settings.
 class PrinterQuery : public PrintJobWorkerOwner {
  public:
   // GetSettings() UI parameter.
   enum GetSettingsAskParam {
     DEFAULTS,
     ASK_USER,
   };
 
   PrinterQuery();
 
   // PrintJobWorkerOwner implementation.
   virtual void GetSettingsDone(const PrintSettings& new_settings,
                                PrintingContext::Result result) OVERRIDE;
   virtual PrintJobWorker* DetachWorker(PrintJobWorkerOwner* new_owner) OVERRIDE;
-  virtual MessageLoop* message_loop() OVERRIDE;
+  virtual base::MessageLoop* message_loop() OVERRIDE;
   virtual const PrintSettings& settings() const OVERRIDE;
   virtual int cookie() const OVERRIDE;
 
   // Initializes the printing context. It is fine to call this function multiple
   // times to reinitialize the settings. |parent_view| parameter's window will
   // be the owner of the print setting dialog box. It is unused when
   // |ask_for_user_settings| is DEFAULTS.
   void GetSettings(GetSettingsAskParam ask_user_for_settings,
                    gfx::NativeView parent_view,
                    int expected_page_count,
@@ skipping 20 matching lines @@
   bool is_valid() const;
 
  private:
   virtual ~PrinterQuery();
 
   // Lazy create the worker thread. There is one worker thread per print job.
   void StartWorker(const base::Closure& callback);
 
   // Main message loop reference. Used to send notifications in the right
   // thread.
-  MessageLoop* const io_message_loop_;
+  base::MessageLoop* const io_message_loop_;
 
   // All the UI is done in a worker thread because many Win32 print functions
   // are blocking and enters a message loop without your consent. There is one
   // worker thread per print job.
   scoped_ptr<PrintJobWorker> worker_;
 
   // Cache of the print context settings for access in the UI thread.
   PrintSettings settings_;
 
   // Is the Print... dialog box currently shown.
   bool is_print_dialog_box_shown_;
 
   // Cookie that make this instance unique.
   int cookie_;
 
   // Results from the last GetSettingsDone() callback.
   PrintingContext::Result last_status_;
 
   // Callback waiting to be run.
   base::Closure callback_;
 
   DISALLOW_COPY_AND_ASSIGN(PrinterQuery);
 };
 
 }  // namespace printing
 
 #endif  // CHROME_BROWSER_PRINTING_PRINTER_QUERY_H_