Remove usages of XInternAtom

ui/aura/window_tree_host_x11.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 UI_AURA_WINDOW_TREE_HOST_X11_H_
 #define UI_AURA_WINDOW_TREE_HOST_X11_H_
 
 #include <stdint.h>
 
 #include <memory>
 
 #include "base/macros.h"
 #include "ui/aura/aura_export.h"
 #include "ui/aura/window_tree_host.h"
 #include "ui/events/platform/platform_event_dispatcher.h"
 #include "ui/gfx/geometry/insets.h"
 #include "ui/gfx/geometry/rect.h"
-#include "ui/gfx/x/x11_atom_cache.h"
 
 // X forward decls to avoid including Xlib.h in a header file.
 typedef struct _XDisplay XDisplay;
 typedef unsigned long XID;
 typedef XID Window;
 
 namespace ui {
 class XScopedEventSelector;
 }
 
@@ skipping 31 matching lines @@
   // Called when X Configure Notify event is recevied.
   virtual void OnConfigureNotify();
 
   // Translates the native mouse location into screen coordinates and
   // dispatches the event via WindowEventDispatcher.
   virtual void TranslateAndDispatchLocatedEvent(ui::LocatedEvent* event);
 
   ::Window x_root_window() { return x_root_window_; }
   XDisplay* xdisplay() { return xdisplay_; }
   const gfx::Rect& bounds() const { return bounds_; }
-  ui::X11AtomCache* atom_cache() { return &atom_cache_; }
 
  private:
   // Dispatches XI2 events. Note that some events targetted for the X root
   // window are dispatched to the aura root window (e.g. touch events after
   // calibration).
   void DispatchXI2Event(const base::NativeEvent& event);
 
   // Sets the cursor on |xwindow_| to |cursor|.  Does not check or update
   // |current_cursor_|.
   void SetCursorInternal(gfx::NativeCursor cursor);
@@ skipping 10 matching lines @@
 
   // Current Aura cursor.
   gfx::NativeCursor current_cursor_;
 
   // Is the window mapped to the screen?
   bool window_mapped_;
 
   // The bounds of |xwindow_|.
   gfx::Rect bounds_;
 
-  ui::X11AtomCache atom_cache_;
-
   DISALLOW_COPY_AND_ASSIGN(WindowTreeHostX11);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_WINDOW_TREE_HOST_X11_H_