Move ui::GetAtom to gfx::GetAtom

ui/base/x/x11_util.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_BASE_X_X11_UTIL_H_
 #define UI_BASE_X_X11_UTIL_H_
 
 // This file declares utility functions for X11 (Linux only).
 //
 // These functions do not require the Xlib headers to be included (which is why
@@ skipping 159 matching lines @@
                                       XAtom value);
 UI_BASE_X_EXPORT bool SetAtomArrayProperty(XID window,
                                            const std::string& name,
                                            const std::string& type,
                                            const std::vector<XAtom>& value);
 UI_BASE_X_EXPORT bool SetStringProperty(XID window,
                                         XAtom property,
                                         XAtom type,
                                         const std::string& value);
 
-// Gets the X atom for default display corresponding to atom_name.
-UI_BASE_X_EXPORT XAtom GetAtom(const char* atom_name);
-
 // Sets the WM_CLASS attribute for a given X11 window.
 UI_BASE_X_EXPORT void SetWindowClassHint(XDisplay* display,
                                          XID window,
                                          const std::string& res_name,
                                          const std::string& res_class);
 
 // Sets the WM_WINDOW_ROLE attribute for a given X11 window.
 UI_BASE_X_EXPORT void SetWindowRole(XDisplay* display,
                                     XID window,
                                     const std::string& role);
@@ skipping 136 matching lines @@
 namespace test {
 
 // Returns the cached XcursorImage for |cursor|.
 UI_BASE_X_EXPORT const XcursorImage* GetCachedXcursorImage(::Cursor cursor);
 
 }  // namespace test
 
 }  // namespace ui
 
 #endif  // UI_BASE_X_X11_UTIL_H_