Move message_pump to base/message_loop.

base/message_pump_gtk.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 BASE_MESSAGE_PUMP_GTK_H_
-#define BASE_MESSAGE_PUMP_GTK_H_
-
-#include "base/message_pump_glib.h"
-
-typedef union _GdkEvent GdkEvent;
-typedef struct _XDisplay Display;
-
-namespace base {
-
-// The documentation for this class is in message_pump_glib.h
-class MessagePumpObserver {
- public:
-  // This method is called before processing a message.
-  virtual void WillProcessEvent(GdkEvent* event) = 0;
-
-  // This method is called after processing a message.
-  virtual void DidProcessEvent(GdkEvent* event) = 0;
-
- protected:
-  virtual ~MessagePumpObserver() {}
-};
-
-// The documentation for this class is in message_pump_glib.h
-//
-// The nested loop is exited by either posting a quit, or returning false
-// from Dispatch.
-class MessagePumpDispatcher {
- public:
-  // Dispatches the event. If true is returned processing continues as
-  // normal. If false is returned, the nested loop exits immediately.
-  virtual bool Dispatch(GdkEvent* event) = 0;
-
- protected:
-  virtual ~MessagePumpDispatcher() {}
-};
-
-// This class implements a message-pump for dispatching GTK events.
-class BASE_EXPORT MessagePumpGtk : public MessagePumpGlib {
- public:
-  MessagePumpGtk();
-
-  // Dispatch an available GdkEvent. Essentially this allows a subclass to do
-  // some task before/after calling the default handler (EventDispatcher).
-  void DispatchEvents(GdkEvent* event);
-
-  // Returns default X Display.
-  static Display* GetDefaultXDisplay();
-
- protected:
-  virtual ~MessagePumpGtk();
-
- private:
-  // Invoked from EventDispatcher. Notifies all observers we're about to
-  // process an event.
-  void WillProcessEvent(GdkEvent* event);
-
-  // Invoked from EventDispatcher. Notifies all observers we processed an
-  // event.
-  void DidProcessEvent(GdkEvent* event);
-
-  // Callback prior to gdk dispatching an event.
-  static void EventDispatcher(GdkEvent* event, void* data);
-
-  DISALLOW_COPY_AND_ASSIGN(MessagePumpGtk);
-};
-
-typedef MessagePumpGtk MessagePumpForUI;
-
-}  // namespace base
-
-#endif  // BASE_MESSAGE_PUMP_GTK_H_