Implement newly designed sign-in related histograms for desktop platorms.

chrome/browser/ui/webui/signin/inline_login_handler_impl.h

Index: chrome/browser/ui/webui/signin/inline_login_handler_impl.h
diff --git a/chrome/browser/ui/webui/signin/inline_login_handler_impl.h b/chrome/browser/ui/webui/signin/inline_login_handler_impl.h
index 138b4fb9e6062ea529864d7bb0553403867d43fd..f20256bdbfe79df8a6c4e9363ebff4b5cc0dc21e 100644
--- a/chrome/browser/ui/webui/signin/inline_login_handler_impl.h
+++ b/chrome/browser/ui/webui/signin/inline_login_handler_impl.h
@@ -170,7 +170,6 @@ class InlineSigninHelper : public GaiaAuthConsumer {
   // cross account error, and false otherwise.
   bool HandleCrossAccountError(
       const std::string& refresh_token,
-      signin_metrics::Source source,
       OneClickSigninSyncStarter::ConfirmationRequired confirmation_required,
       OneClickSigninSyncStarter::StartSyncMode start_mode);
 
@@ -178,7 +177,6 @@ class InlineSigninHelper : public GaiaAuthConsumer {
   void ConfirmEmailAction(
       content::WebContents* web_contents,
       const std::string& refresh_token,
-      signin_metrics::Source source,
       OneClickSigninSyncStarter::ConfirmationRequired confirmation_required,
       OneClickSigninSyncStarter::StartSyncMode start_mode,
       Action action);
@@ -193,7 +191,8 @@ class InlineSigninHelper : public GaiaAuthConsumer {
   virtual void CreateSyncStarter(
       Browser* browser,
       content::WebContents* contents,
-      const GURL& url,
+      const GURL& current_url,
+      const GURL& continue_url,
       const std::string& refresh_token,
       OneClickSigninSyncStarter::StartSyncMode start_mode,
       OneClickSigninSyncStarter::ConfirmationRequired confirmation_required);