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

ui/base/x/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 <X11/Xatom.h>
-
-#include "base/message_pump_x.h"
-
-namespace ui {
-
-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;
-  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);
-
-}  // 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
-
-