Desktop aura: Put x11 cache in aura, instead of ui/base/x/.

ui/aura/x11_atom_cache.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/base/x/x11_atom_cache.h"
+#include "ui/aura/x11_atom_cache.h"
 
 #include <X11/Xatom.h>
 
 #include "base/message_pump_x.h"
 
-namespace ui {
+namespace aura {
 
 namespace {
 
 // A list of atoms that we'll intern on host creation to save roundtrips to the
 // X11 server. Must be kept in sync with AtomCache::AtomName
 struct AtomInfo {
-  ui::AtomName id;
+  AtomName id;
   const char* name;
 } const kAtomList[] = {
   { ATOM_WM_DELETE_WINDOW, "WM_DELETE_WINDOW" },
   { ATOM__NET_WM_MOVERESIZE, "_NET_WM_MOVERESIZE" },
   { ATOM__NET_WM_PING, "_NET_WM_PING" },
   { ATOM__NET_WM_PID, "_NET_WM_PID" },
   { ATOM_WM_S0, "WM_S0" },
   { ATOM__MOTIF_WM_HINTS, "_MOTIF_WM_HINTS" }
 };
 
 // Our lists need to stay in sync here.
-COMPILE_ASSERT(arraysize(kAtomList) == ui::ATOM_COUNT,
-               atom_lists_are_same_size);
+COMPILE_ASSERT(arraysize(kAtomList) == ATOM_COUNT, atom_lists_are_same_size);
 
 }  // namespace
 
-X11AtomCache* X11AtomCache::GetInstance() {
-  return Singleton<X11AtomCache>::get();
-}
-
 ::Atom X11AtomCache::GetAtom(AtomName name) const {
   std::map<AtomName, ::Atom>::const_iterator it = cached_atoms_.find(name);
   DCHECK(it != cached_atoms_.end());
   return it->second;
 }
 
 X11AtomCache::X11AtomCache() {
   const char* all_names[ATOM_COUNT];
   ::Atom cached_atoms[ATOM_COUNT];
 
   for (int i = 0; i < ATOM_COUNT; ++i)
     all_names[i] = kAtomList[i].name;
 
   // Grab all the atoms we need now to minimize roundtrips to the X11 server.
   XInternAtoms(base::MessagePumpX::GetDefaultXDisplay(),
                const_cast<char**>(all_names), ATOM_COUNT, False,
                cached_atoms);
 
   for (int i = 0; i < ATOM_COUNT; ++i)
     cached_atoms_.insert(std::make_pair(kAtomList[i].id, cached_atoms[i]));
 }
 
 X11AtomCache::~X11AtomCache() {}
 
-}  // namespace ui
-
-
+}  // namespace aura