Switch guest profile from forced-incognito to UI mods like ChromeOS.

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

Index: chrome/browser/ui/webui/options/browser_options_handler.cc
diff --git a/chrome/browser/ui/webui/options/browser_options_handler.cc b/chrome/browser/ui/webui/options/browser_options_handler.cc
index 5be4f546fee5583b6d09a5880da2d90686fcdcbf..6827ca578f1545c9104ae8b43685dd5d7c2bd88b 100644
--- a/chrome/browser/ui/webui/options/browser_options_handler.cc
+++ b/chrome/browser/ui/webui/options/browser_options_handler.cc
@@ -1573,10 +1573,10 @@ void BrowserOptionsHandler::SetupAccessibilityFeatures() {
 #endif
 
 void BrowserOptionsHandler::SetupMetricsReportingSettingVisibility() {
-#if defined(GOOGLE_CHROME_BUILD) && defined(OS_CHROMEOS)
+#if defined(GOOGLE_CHROME_BUILD)
   // Don't show the reporting setting if we are in the guest mode.
-  if (CommandLine::ForCurrentProcess()->HasSwitch(
-          chromeos::switches::kGuestSession)) {
+  Profile* profile = Profile::FromWebUI(web_ui());

[msw, 2014/02/15 00:30:52]

nit: inline this in the if statement below.

[bcwhite, 2014/02/18 15:19:36]

Done.

+  if (profile->IsGuestSession()) {
     base::FundamentalValue visible(false);
     web_ui()->CallJavascriptFunction(
         "BrowserOptions.setMetricsReportingSettingVisibility", visible);