aura/cros: Rename MessagePump{X => AuraX11} and move the atom cache into it.

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/aura/x11_atom_cache.h"
 
 #include <X11/Xatom.h>
 
+#include "base/message_pump_aurax11.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/message_pump_x.h"
 
 namespace aura {
 
 X11AtomCache::X11AtomCache(Display* xdisplay, const char** to_cache)
     : xdisplay_(xdisplay) {
   int cache_count = 0;
   for (const char** i = to_cache; *i != NULL; i++)
     cache_count++;
 
   scoped_array< ::Atom> cached_atoms(new ::Atom[cache_count]);
 
   // Grab all the atoms we need now to minimize roundtrips to the X11 server.
-  XInternAtoms(base::MessagePumpX::GetDefaultXDisplay(),
+  XInternAtoms(base::MessagePumpAuraX11::GetDefaultXDisplay(),
                const_cast<char**>(to_cache), cache_count, False,
                cached_atoms.get());
 
   for (int i = 0; i < cache_count; ++i)
     cached_atoms_.insert(std::make_pair(to_cache[i], cached_atoms[i]));
 }
 
 X11AtomCache::~X11AtomCache() {}
 
 ::Atom X11AtomCache::GetAtom(const char* name) const {
   std::map<std::string, ::Atom>::const_iterator it = cached_atoms_.find(name);
   CHECK(it != cached_atoms_.end());
   return it->second;
 }
 
 }  // namespace aura