Remove usages of XInternAtom

ash/host/ash_window_tree_host_x11.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 "ash/host/ash_window_tree_host_x11.h"
 
 #include <X11/extensions/Xfixes.h>
 #include <X11/extensions/XInput2.h>
 #include <X11/Xatom.h>
 #include <X11/Xlib.h>
@@ skipping 12 matching lines @@
 #include "ui/display/screen.h"
 #include "ui/display/types/display_constants.h"
 #include "ui/events/devices/device_data_manager.h"
 #include "ui/events/devices/x11/device_list_cache_x11.h"
 #include "ui/events/devices/x11/touch_factory_x11.h"
 #include "ui/events/event.h"
 #include "ui/events/event_utils.h"
 #include "ui/events/null_event_targeter.h"
 #include "ui/events/platform/platform_event_source.h"
 #include "ui/gfx/geometry/rect.h"
+#include "ui/gfx/x/x11_atom_cache.h"
 
 namespace ash {
 
 AshWindowTreeHostX11::AshWindowTreeHostX11(const gfx::Rect& initial_bounds)
     : WindowTreeHostX11(initial_bounds), transformer_helper_(this) {
   transformer_helper_.Init();
   aura::Env::GetInstance()->AddObserver(this);
 }
 
 AshWindowTreeHostX11::~AshWindowTreeHostX11() {
@@ skipping 166 matching lines @@
 void AshWindowTreeHostX11::TranslateAndDispatchLocatedEvent(
     ui::LocatedEvent* event) {
   TranslateLocatedEvent(event);
   SendEventToSink(event);
 }
 
 void AshWindowTreeHostX11::SetCrOSTapPaused(bool state) {
   if (!ui::IsXInput2Available())
     return;
   // Temporarily pause tap-to-click when the cursor is hidden.
-  Atom prop = atom_cache()->GetAtom("Tap Paused");
+  Atom prop = ui::X11AtomCache::GetInstance()->GetAtom("Tap Paused");
   unsigned char value = state;
   const XIDeviceList& dev_list =
       ui::DeviceListCacheX11::GetInstance()->GetXI2DeviceList(xdisplay());
 
   // Only slave pointer devices could possibly have tap-paused property.
   for (int i = 0; i < dev_list.count; i++) {
     if (dev_list[i].use == XISlavePointer) {
       Atom old_type;
       int old_format;
       unsigned long old_nvalues, bytes;
       unsigned char* data;
       int result = XIGetProperty(xdisplay(), dev_list[i].deviceid, prop, 0, 0,
                                  False, AnyPropertyType, &old_type, &old_format,
                                  &old_nvalues, &bytes, &data);
       if (result != Success)
         continue;
       XFree(data);
       XIChangeProperty(xdisplay(), dev_list[i].deviceid, prop, XA_INTEGER, 8,
                        PropModeReplace, &value, 1);
     }
   }
 }
 
 }  // namespace ash