Remove unused ImportProgressDialog.

chrome/browser/importer/importer_observer.h

Index: chrome/browser/importer/importer_observer.h
diff --git a/chrome/browser/importer/importer_observer.h b/chrome/browser/importer/importer_observer.h
deleted file mode 100644
index b8f88fb8b1f69423b17c2d28f99c69ece7c0bcaf..0000000000000000000000000000000000000000
--- a/chrome/browser/importer/importer_observer.h
+++ /dev/null
@@ -1,18 +0,0 @@
-// 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_IMPORTER_IMPORTER_OBSERVER_H_
-#define CHROME_BROWSER_IMPORTER_IMPORTER_OBSERVER_H_
-
-// An interface that notifies the consumers that the import process was
-// completed.
-class ImporterObserver {
- public:
-  virtual ~ImporterObserver() {}
-
-  // The import operation was completed successfully.
-  virtual void ImportCompleted() = 0;
-};
-
-#endif  // CHROME_BROWSER_IMPORTER_IMPORTER_OBSERVER_H_