aura: Remove WindowTreeHost::PostNativeEvent().

ui/aura/test/x11_event_sender.cc

+// Copyright 2014 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/aura/test/x11_event_sender.h"
+
+#include <X11/Xlib.h>
+
+#include "ui/aura/window_tree_host.h"
+#include "ui/gfx/geometry/point.h"
+
+namespace aura {
+namespace test {
+
+void PostEventToWindowTreeHost(const XEvent& xevent, WindowTreeHost* host) {
+  XDisplay* xdisplay = gfx::GetXDisplay();
+  XID xwindow = host->GetAcceleratedWidget();
+  XEvent event = xevent;
+  event.xany.display = xdisplay;
+  event.xany.window = xwindow;
+
+  switch (event.type) {
+    case EnterNotify:
+    case LeaveNotify:
+    case MotionNotify:
+    case KeyPress:
+    case KeyRelease:
+    case ButtonPress:
+    case ButtonRelease: {
+      // The fields used below are in the same place for all of events
+      // above. Using xmotion from XEvent's unions to avoid repeating
+      // the code.
+      event.xmotion.root = DefaultRootWindow(event.xany.display);
+      event.xmotion.time = CurrentTime;
+
+      gfx::Point point(event.xmotion.x, event.xmotion.y);
+      host->ConvertPointToNativeScreen(&point);
+      event.xmotion.x_root = point.x();
+      event.xmotion.y_root = point.y();
+    }
+    default:
+      break;
+  }
+  XSendEvent(xdisplay, xwindow, False, 0, &event);
+  XFlush(xdisplay);
+}
+
+}  // namespace test
+}  // namespace aura