Added VCS integration to ResourceEditor.

Made add and remove operations of ResourceEditor VCS-aware. Also, remove
operation now can remove files from filesystem.

FileUtils::removeFile() and VcsManager::promptToAdd functions were
extracted from ProjectExplorer to prevent code duplication.
RemoveFileDialog was also moved to coreplugin.

Change-Id: Ia51127288030e52ce9475b369e56ea034dfa5d1e
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Tobias Hunger <tobias.hunger@nokia.com>

src/plugins/coreplugin/removefiledialog.cpp

@@ -0,0 +1,74 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: http://www.qt-project.org/
+**
+**
+** GNU Lesser General Public License Usage
+**
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this file.
+** Please review the following information to ensure the GNU Lesser General
+** Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** Other Usage
+**
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**************************************************************************/
+
+#include "removefiledialog.h"
+#include "ui_removefiledialog.h"
+
+#include <QDir>
+
+using namespace Core;
+
+RemoveFileDialog::RemoveFileDialog(const QString &filePath, QWidget *parent) :
+    QDialog(parent),
+    m_ui(new Ui::RemoveFileDialog)
+{
+    m_ui->setupUi(this);
+    m_ui->fileNameLabel->setText(QDir::toNativeSeparators(filePath));
+
+    // TODO
+    m_ui->removeVCCheckBox->setVisible(false);
+}
+
+RemoveFileDialog::~RemoveFileDialog()
+{
+    delete m_ui;
+}
+
+void RemoveFileDialog::setDeleteFileVisible(bool visible)
+{
+    m_ui->deleteFileCheckBox->setVisible(visible);
+}
+
+bool RemoveFileDialog::isDeleteFileChecked() const
+{
+    return m_ui->deleteFileCheckBox->isChecked();
+}
+
+void RemoveFileDialog::changeEvent(QEvent *e)
+{
+    QDialog::changeEvent(e);
+    switch (e->type()) {
+    case QEvent::LanguageChange:
+        m_ui->retranslateUi(this);
+        break;
+    default:
+        break;
+    }
+}