GTK: Activate window when "Get themes" button is clicked.

chrome/browser/browser.h

 // Copyright (c) 2006-2009 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_BROWSER_H_
 #define CHROME_BROWSER_BROWSER_H_
 
 #include <map>
 #include <set>
 #include <vector>
@@ skipping 388 matching lines @@
   void ShowDownloadsTab();
   void OpenClearBrowsingDataDialog();
   void OpenOptionsDialog();
   void OpenKeywordEditor();
   void OpenPasswordManager();
   void OpenSyncMyBookmarksDialog();
   void OpenImportSettingsDialog();
   void OpenAboutChromeDialog();
   void OpenHelpTab();
   void OpenExtensionsTab();
+  // Used by the "Get themes" link in the options dialog.
+  void OpenThemeGalleryTabAndActivate();
 #if defined(OS_CHROMEOS)
   void ShowControlPanel();
 #endif
 
   virtual void UpdateDownloadShelfVisibility(bool visible);
 
   /////////////////////////////////////////////////////////////////////////////
 
   // Sets the value of homepage related prefs to new values. Since we do not
   // want to change these values for existing users, we can not change the
@@ skipping 388 matching lines @@
   // Dialog box used for opening and saving files.
   scoped_refptr<SelectFileDialog> select_file_dialog_;
 
   // Keep track of the encoding auto detect pref.
   BooleanPrefMember encoding_auto_detect_;
 
   DISALLOW_COPY_AND_ASSIGN(Browser);
 };
 
 #endif  // CHROME_BROWSER_BROWSER_H_