Revert 225054 "linux_aura: Implement most of DesktopScreenX11."

trunk/src/ui/views/widget/desktop_aura/desktop_screen_x11.h

-// Copyright (c) 2013 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 UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_SCREEN_X11_H_
-#define UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_SCREEN_X11_H_
-
-#include "base/message_loop/message_pump_dispatcher.h"
-#include "base/observer_list.h"
-#include "base/timer/timer.h"
-#include "ui/gfx/screen.h"
-#include "ui/views/views_export.h"
-
-namespace gfx {
-class Display;
-}
-
-typedef unsigned long XID;
-typedef XID Window;
-typedef struct _XDisplay Display;
-
-namespace views {
-class DesktopScreenX11Test;
-
-// Our singleton screen implementation that talks to xrandr.
-class VIEWS_EXPORT DesktopScreenX11 : public gfx::Screen,
-                                      public base::MessagePumpDispatcher {
- public:
-  DesktopScreenX11();
-
-  virtual ~DesktopScreenX11();
-
-  // Takes a set of displays and dispatches the screen change events to
-  // listeners. Exposed for testing.
-  void ProcessDisplayChange(const std::vector<gfx::Display>& displays);
-
-  // Overridden from gfx::Screen:
-  virtual bool IsDIPEnabled() OVERRIDE;
-  virtual gfx::Point GetCursorScreenPoint() OVERRIDE;
-  virtual gfx::NativeWindow GetWindowUnderCursor() OVERRIDE;
-  virtual gfx::NativeWindow GetWindowAtScreenPoint(const gfx::Point& point)
-      OVERRIDE;
-  virtual int GetNumDisplays() const OVERRIDE;
-  virtual std::vector<gfx::Display> GetAllDisplays() const OVERRIDE;
-  virtual gfx::Display GetDisplayNearestWindow(
-      gfx::NativeView window) const OVERRIDE;
-  virtual gfx::Display GetDisplayNearestPoint(
-      const gfx::Point& point) const OVERRIDE;
-  virtual gfx::Display GetDisplayMatching(
-      const gfx::Rect& match_rect) const OVERRIDE;
-  virtual gfx::Display GetPrimaryDisplay() const OVERRIDE;
-  virtual void AddObserver(gfx::DisplayObserver* observer) OVERRIDE;
-  virtual void RemoveObserver(gfx::DisplayObserver* observer) OVERRIDE;
-
-  // Overridden from MessagePumpDispatcher:
-  virtual bool Dispatch(const base::NativeEvent& event) OVERRIDE;
-
- private:
-  friend class DesktopScreenX11Test;
-
-  // Constructor used in tests.
-  DesktopScreenX11(const std::vector<gfx::Display>& test_displays);
-
-  // Builds a list of displays from the current screen information offered by
-  // the X server.
-  std::vector<gfx::Display> BuildDisplaysFromXRandRInfo();
-
-  // We delay updating the display so we can coalesce events.
-  void ConfigureTimerFired();
-
-  Display* xdisplay_;
-  ::Window x_root_window_;
-
-  // Whether the x server supports the XRandR extension.
-  bool has_xrandr_;
-
-  // The base of the event numbers used to represent XRandr events used in
-  // decoding events regarding output add/remove.
-  int xrandr_event_base_;
-
-  // The display objects we present to chrome.
-  std::vector<gfx::Display> displays_;
-
-  // The timer to delay configuring outputs. See also the comments in
-  // Dispatch().
-  scoped_ptr<base::OneShotTimer<DesktopScreenX11> > configure_timer_;
-
-  ObserverList<gfx::DisplayObserver> observer_list_;
-
-  DISALLOW_COPY_AND_ASSIGN(DesktopScreenX11);
-};
-
-}  // namespace views
-
-#endif  // UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_SCREEN_X11_H_