Make File-Picker modal on Linux

chrome/browser/ui/libgtk2ui/select_file_dialog_impl_kde.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 <set>
 
 #include <X11/Xlib.h>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 32 matching lines @@
 
 namespace libgtk2ui {
 
 // Implementation of SelectFileDialog that shows a KDE common dialog for
 // choosing a file or folder. This acts as a modal dialog.
 class SelectFileDialogImplKDE : public SelectFileDialogImpl {
  public:
   SelectFileDialogImplKDE(Listener* listener,
                           ui::SelectFilePolicy* policy,
                           base::nix::DesktopEnvironment desktop);
+  void CloseImpl() override;
 
  protected:
   ~SelectFileDialogImplKDE() override;
 
   // BaseShellDialog implementation:
   bool IsRunning(gfx::NativeWindow parent_window) const override;
 
   // SelectFileDialog implementation.
   // |params| is user data we pass back via the Listener interface.
   void SelectFileImpl(Type type,
@@ skipping 128 matching lines @@
 SelectFileDialogImplKDE::SelectFileDialogImplKDE(
     Listener* listener,
     ui::SelectFilePolicy* policy,
     base::nix::DesktopEnvironment desktop)
     : SelectFileDialogImpl(listener, policy),
       desktop_(desktop) {
   DCHECK(desktop_ == base::nix::DESKTOP_ENVIRONMENT_KDE3 ||
          desktop_ == base::nix::DESKTOP_ENVIRONMENT_KDE4);
 }
 
+void SelectFileDialogImplKDE::CloseImpl() {
+}
+
 SelectFileDialogImplKDE::~SelectFileDialogImplKDE() {
 }
 
 bool SelectFileDialogImplKDE::IsRunning(gfx::NativeWindow parent_window) const {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   if (parent_window && parent_window->GetHost()) {
     XID xid = parent_window->GetHost()->GetAcceleratedWidget();
     return parents_.find(xid) != parents_.end();
   }
 
@@ skipping 296 matching lines @@
   }
 
   if (filenames_fp.empty()) {
     FileNotSelected(params);
     return;
   }
   MultiFilesSelected(filenames_fp, params);
 }
 
 }  // namespace libgtk2ui