browser/ui: Share BookmarkBarInstructions delegate between gtk and views.

chrome/browser/ui/bookmarks/bookmark_bar_instructions_delegate.h

+// 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.
+
+#ifndef CHROME_BROWSER_UI_BOOKMARKS_BOOKMARK_BAR_INSTRUCTIONS_DELEGATE_H_
+#define CHROME_BROWSER_UI_BOOKMARKS_BOOKMARK_BAR_INSTRUCTIONS_DELEGATE_H_
+
+namespace chrome {
+
+// The delegate is notified once the user clicks on the link to import
+// bookmarks.
+class BookmarkBarInstructionsDelegate {
+ public:
+  virtual void ShowImportDialog() = 0;
+
+ protected:
+  virtual ~BookmarkBarInstructionsDelegate() {}
+};
+
+}  // namespace chrome
+
+#endif  // CHROME_BROWSER_UI_BOOKMARKS_BOOKMARK_BAR_INSTRUCTIONS_DELEGATE_H_