aura/cros: Rename MessagePump{X => AuraX11} and move the atom cache into it.

base/message_pump_x.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_X_H
-#define BASE_MESSAGE_PUMP_X_H
-
-#include "base/memory/scoped_ptr.h"
-#include "base/message_pump.h"
-#include "base/message_pump_glib.h"
-#include "base/message_pump_dispatcher.h"
-#include "base/message_pump_observer.h"
-
-#include <bitset>
-
-#include <glib.h>
-
-typedef struct _XDisplay Display;
-
-namespace base {
-
-// This class implements a message-pump for dispatching X events.
-class BASE_EXPORT MessagePumpX : public MessagePumpGlib {
- public:
-  MessagePumpX();
-
-  // Returns default X Display.
-  static Display* GetDefaultXDisplay();
-
-  // Returns true if the system supports XINPUT2.
-  static bool HasXInput2();
-
-  // Sets the default dispatcher to process native events.
-  static void SetDefaultDispatcher(MessagePumpDispatcher* dispatcher);
-
-  // Internal function. Called by the glib source dispatch function. Processes
-  // all available X events.
-  gboolean DispatchXEvents();
-
- protected:
-  virtual ~MessagePumpX();
-
- private:
-  // Initializes the glib event source for X.
-  void InitXSource();
-
-  // Dispatches the XEvent and returns true if we should exit the current loop
-  // of message processing.
-  bool ProcessXEvent(MessagePumpDispatcher* dispatcher, XEvent* event);
-
-  // Sends the event to the observers. If an observer returns true, then it does
-  // not send the event to any other observers and returns true. Returns false
-  // if no observer returns true.
-  bool WillProcessXEvent(XEvent* xevent);
-  void DidProcessXEvent(XEvent* xevent);
-
-  // The event source for X events.
-  GSource* x_source_;
-
-  // The poll attached to |x_source_|.
-  scoped_ptr<GPollFD> x_poll_;
-
-  DISALLOW_COPY_AND_ASSIGN(MessagePumpX);
-};
-
-typedef MessagePumpX MessagePumpForUI;
-
-}  // namespace base
-
-#endif  // BASE_MESSAGE_PUMP_X_H