[win] Add signin support for the app launcher.

chrome/browser/ui/sync/one_click_signin_sync_starter.h

Index: chrome/browser/ui/sync/one_click_signin_sync_starter.h
diff --git a/chrome/browser/ui/sync/one_click_signin_sync_starter.h b/chrome/browser/ui/sync/one_click_signin_sync_starter.h
index 9eb5e8a6a691336699a446937b8c9c0895f9d65e..6860fb707a66ebd6cdff5f4c283f7f0ca83756eb 100644
--- a/chrome/browser/ui/sync/one_click_signin_sync_starter.h
+++ b/chrome/browser/ui/sync/one_click_signin_sync_starter.h
@@ -27,7 +27,10 @@ class OneClickSigninSyncStarter : public SigninTracker::Observer {
     CONFIGURE_SYNC_FIRST
   };
 
-  OneClickSigninSyncStarter(Browser* browser,
+  // |profile| must not be NULL, however |browser| can be. When using the
+  // OneClickSigninSyncStarter from a browser, provide both.
+  OneClickSigninSyncStarter(Profile* profile,
+                            Browser* browser,
                             const std::string& session_index,
                             const std::string& email,
                             const std::string& password,
@@ -41,6 +44,7 @@ class OneClickSigninSyncStarter : public SigninTracker::Observer {
   virtual void SigninFailed(const GoogleServiceAuthError& error) OVERRIDE;
   virtual void SigninSuccess() OVERRIDE;
 
+  Profile* profile_;
   Browser* browser_;
   SigninTracker signin_tracker_;
   StartSyncMode start_mode_;