Integrate About page into Settings for Chrome OS settings in a window.

chrome/browser/ui/webui/options/options_ui.cc

Index: chrome/browser/ui/webui/options/options_ui.cc
diff --git a/chrome/browser/ui/webui/options/options_ui.cc b/chrome/browser/ui/webui/options/options_ui.cc
index c7784e8cbbc94459b2cfed88a835a272e197f630..63c4aaed93cd691fd4f056eac6bea41b99c10dd3 100644
--- a/chrome/browser/ui/webui/options/options_ui.cc
+++ b/chrome/browser/ui/webui/options/options_ui.cc
@@ -33,6 +33,7 @@
 #include "chrome/browser/ui/webui/options/create_profile_handler.h"
 #include "chrome/browser/ui/webui/options/font_settings_handler.h"
 #include "chrome/browser/ui/webui/options/handler_options_handler.h"
+#include "chrome/browser/ui/webui/options/help_overlay_handler.h"
 #include "chrome/browser/ui/webui/options/home_page_overlay_handler.h"
 #include "chrome/browser/ui/webui/options/import_data_handler.h"
 #include "chrome/browser/ui/webui/options/language_dictionary_overlay_handler.h"
@@ -273,6 +274,7 @@ OptionsUI::OptionsUI(content::WebUI* web_ui)
 #if defined(ENABLE_GOOGLE_NOW)
   AddOptionsPageUIHandler(localized_strings, new GeolocationOptionsHandler());
 #endif
+  AddOptionsPageUIHandler(localized_strings, new HelpOverlayHandler());

[Dan Beam, 2014/08/07 22:36:16]

why isn't this added only on ChromeOS?

[michaelpg, 2014/08/08 01:10:46]

Done. (The only other thing to mention is I intentionally didn't put it in
options/chromeos, because there's nothing chrome-os-specific about it other than
that we happen to only want to do this on chrome os right now.)

[Dan Beam, 2014/08/08 02:39:13]

are there immediate plans to use any of the "about page in settings" code
outside of chromeos?

[stevenjb, 2014/08/08 16:41:32]

The plan of record is to try settings-in-a-window (with About integrated as per
this CL) on Chrome OS, then if we like it to enable it on other platforms as
well, probably in 39 or 40.

   AddOptionsPageUIHandler(localized_strings, new HomePageOverlayHandler());
   AddOptionsPageUIHandler(localized_strings,
                           new MediaDevicesSelectionHandler());