Handle termination/crashes of an extension hosted in the ExtensionDialog.

chrome/browser/ui/views/select_file_dialog_extension.h

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_BROWSER_UI_VIEWS_SELECT_FILE_DIALOG_EXTENSION_H_
 #define CHROME_BROWSER_UI_VIEWS_SELECT_FILE_DIALOG_EXTENSION_H_
 #pragma once
 
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "chrome/browser/ui/select_file_dialog.h"
 #include "chrome/browser/ui/views/extensions/extension_dialog_observer.h"
 #include "ui/gfx/native_widget_types.h"  // gfx::NativeWindow
 
+class Browser;
 class ExtensionDialog;
 class RenderViewHost;
 
 // Shows a dialog box for selecting a file or a folder, using the
 // file manager extension implementation.
 class SelectFileDialogExtension
     : public SelectFileDialog,
       public ExtensionDialogObserver {
  public:
   static SelectFileDialogExtension* Create(
       SelectFileDialog::Listener* listener);
 
   // BaseShellDialog implementation.
   virtual bool IsRunning(gfx::NativeWindow owner_window) const OVERRIDE;
   virtual void ListenerDestroyed() OVERRIDE;
 
   // ExtensionDialog::Observer implementation.
   virtual void ExtensionDialogClosing(ExtensionDialog* dialog) OVERRIDE;
+  virtual void ExtensionTerminated(ExtensionDialog* dialog) OVERRIDE;
 
   // Routes callback to appropriate SelectFileDialog::Listener based on
   // the owning |tab_id|.
   static void OnFileSelected(int32 tab_id, const FilePath& path, int index);
   static void OnMultiFilesSelected(int32 tab_id,
                                    const std::vector<FilePath>& files);
   static void OnFileSelectionCanceled(int32 tab_id);
 
   // For testing, so we can inject JavaScript into the contained view.
   RenderViewHost* GetRenderViewHost();
@@ skipping 31 matching lines @@
   virtual bool HasMultipleFileTypeChoicesImpl() OVERRIDE;
 
   bool has_multiple_file_type_choices_;
 
   // Host for the extension that implements this dialog.
   scoped_refptr<ExtensionDialog> extension_dialog_;
 
   // ID of the tab that spawned this dialog, used to route callbacks.
   int32 tab_id_;
 
+  // Cache a pointer to our owner browser. Since we're a child window of our
+  // owner browser, if this browser gets deleted, it will also close us.
+  Browser* owner_browser_;
+
   gfx::NativeWindow owner_window_;
 
   // We defer the callback into SelectFileDialog::Listener until the window
   // closes, to match the semantics of file selection on Windows and Mac.
   // These are the data passed to the listener.
   enum SelectionType {
     CANCEL = 0,
     SINGLE_FILE,
     MULTIPLE_FILES
   };
   SelectionType selection_type_;
   std::vector<FilePath> selection_files_;
   int selection_index_;
   void* params_;
 
   DISALLOW_COPY_AND_ASSIGN(SelectFileDialogExtension);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_SELECT_FILE_DIALOG_EXTENSION_H_