Remove some unused files in libgtk2ui

chrome/browser/ui/libgtk2ui/g_object_destructor_filo.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 "chrome/browser/ui/libgtk2ui/g_object_destructor_filo.h"
-
-#include <glib-object.h>
-
-#include "base/logging.h"
-#include "base/memory/singleton.h"
-
-namespace libgtk2ui {
-
-GObjectDestructorFILO::GObjectDestructorFILO() {
-}
-
-GObjectDestructorFILO::~GObjectDestructorFILO() {
-  // Probably CHECK(handler_map_.empty()) would look natural here. But
-  // some tests (some views_unittests) violate this assertion.
-}
-
-// static
-GObjectDestructorFILO* GObjectDestructorFILO::GetInstance() {
-  return base::Singleton<GObjectDestructorFILO>::get();
-}
-
-void GObjectDestructorFILO::Connect(
-    GObject* object, DestructorHook callback, void* context) {
-  const Hook hook(object, callback, context);
-  HandlerMap::iterator iter = handler_map_.find(object);
-  if (iter == handler_map_.end()) {
-    g_object_weak_ref(object, WeakNotifyThunk, this);
-    handler_map_[object].push_front(hook);
-  } else {
-    iter->second.push_front(hook);
-  }
-}
-
-void GObjectDestructorFILO::Disconnect(
-    GObject* object, DestructorHook callback, void* context) {
-  HandlerMap::iterator iter = handler_map_.find(object);
-  if (iter == handler_map_.end()) {
-    LOG(DFATAL) << "Unable to disconnect destructor hook for object " << object
-                << ": hook not found (" << callback << ", " << context << ").";
-    return;
-  }
-  HandlerList& dtors = iter->second;
-  if (dtors.empty()) {
-    LOG(DFATAL) << "Destructor list is empty for specified object " << object
-                << " Maybe it is being executed?";
-    return;
-  }
-  if (!dtors.front().equal(object, callback, context)) {
-    // Reenable this warning once this bug is fixed:
-    // http://code.google.com/p/chromium/issues/detail?id=85603
-    DVLOG(1) << "Destructors should be unregistered the reverse order they "
-             << "were registered. But for object " << object << " "
-             << "deleted hook is "<< context << ", the last queued hook is "
-             << dtors.front().context;
-  }
-  for (HandlerList::iterator i = dtors.begin(); i != dtors.end(); ++i) {
-    if (i->equal(object, callback, context)) {
-      dtors.erase(i);
-      break;
-    }
-  }
-  if (dtors.empty()) {
-    g_object_weak_unref(object, WeakNotifyThunk, this);
-    handler_map_.erase(iter);
-  }
-}
-
-void GObjectDestructorFILO::WeakNotify(GObject* where_the_object_was) {
-  HandlerMap::iterator iter = handler_map_.find(where_the_object_was);
-  DCHECK(iter != handler_map_.end());
-  DCHECK(!iter->second.empty());
-
-  // Save destructor list for given object into local copy to avoid reentrancy
-  // problem: if callee wants to modify the caller list.
-  HandlerList dtors;
-  iter->second.swap(dtors);
-  handler_map_.erase(iter);
-
-  // Execute hooks in local list in FILO order.
-  for (HandlerList::iterator i = dtors.begin(); i != dtors.end(); ++i)
-    i->callback(i->context, where_the_object_was);
-}
-
-}  // namespace libgtk2ui