In windows the toolbar itself creates the search shell extension. In ros we send a command to the CShellBrowser to let it handle it itself. Use the same command for showing and hiding it.
CBaseBarSite: Ask the CBaseBar to close itself when the x button is pressed.
CBaseBar: Hide the bar and inform its site that it is closing when it gets the close command.
CShellBrowser: Cache the guid of the current vertical bar and use it to report correct command status to the toolbar.
Also implement toggling the Folders, Favorites, History and search commands.
CInternetToolbar: Query the Folders and Search command status from the site so that they can be properly be shown as pressed.
- Implement shell32 RegenerateUserEnvironment() function and use it.
- CShellBrowser and CDesktopBrowser implements WM_SETTINGCHANGE actions.
CORE-1459, CORE-14397
