Aura on Linux: Make a DesktopScreenX11 to match the windows one.

ui/gfx/screen_aurax11.cc

-// 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.
-
-#include "ui/gfx/screen.h"
-
-#include <X11/Xlib.h>
-
-#include "base/logging.h"
-#include "ui/base/x/x11_util.h"
-
-#if !defined(USE_ASH)
-
-namespace gfx {
-namespace {
-gfx::Size Screen::GetPrimaryMonitorSize() {
-  ::Display* display = ui::GetXDisplay();
-  ::Screen* screen = DefaultScreenOfDisplay(display);
-  int width = WidthOfScreen(screen);
-  int height = HeightOfScreen(screen);
-
-  return gfx::Size(width, height);
-}
-}  // namespace
-
-// TODO(piman,erg): This file needs to be rewritten by someone who understands
-// the subtlety of X11. That is not erg.
-
-// static
-gfx::Point Screen::GetCursorScreenPoint() {
-  Display* display = ui::GetXDisplay();
-
-  // Unsure if I can leave these as NULL.
-  ::Window root, child;
-  int root_x, root_y, win_x, win_y;
-  unsigned int mask;
-  XQueryPointer(display,
-                DefaultRootWindow(display),
-                &root,
-                &child,
-                &root_x,
-                &root_y,
-                &win_x,
-                &win_y,
-                &mask);
-
-  return gfx::Point(root_x, root_y);
-}
-
-// static
-gfx::NativeWindow Screen::GetWindowAtCursorScreenPoint() {
-  // TODO(erg): I have no clue. May need collaboration with
-  // RootWindowHostLinux?
-  return NULL;
-}
-
-// static
-int Screen::GetNumMonitors() {
-  // TODO(erg): Figure this out with oshima or piman because I have no clue
-  // about the Xinerama implications here.
-  return 1;
-}
-
-// static
-Monitor Screen::GetMonitorNearestWindow(NativeWindow window) {
-  // TODO(erg): We need to eventually support multiple monitors.
-  return GetPrimaryMonitor();
-}
-
-// static
-Monitor Screen::GetMonitorNearestPoint(const Point& point) {
-  // TODO(erg): We need to eventually support multiple monitors.
-  return GetPrimaryMonitor();
-}
-
-// static
-Monitor Screen::GetPrimaryMonitor() {
-  // TODO(erg): There was a comment about how we shouldn't use _NET_WORKAREA
-  // for work area by danakj@.
-  // TODO(jamiewalch): Restrict work area to the actual work area of
-  // the monitor.
-  return Monitor(gfx::Rect(GetPrimaryMonitorSize()));
-}
-
-// static
-Monitor Screen::GetMonitorMatching(const gfx::Rect& match_rect) {
-  return GetPrimaryMonitor();
-}
-
-}  // namespace gfx
-#endif  // !defined(USE_ASH)