signin: force web signin flow initiated visits to accounts.google.com to their own process.

chrome/browser/ui/webui/sync_promo/sync_promo_ui.h

Index: chrome/browser/ui/webui/sync_promo/sync_promo_ui.h
diff --git a/chrome/browser/ui/webui/sync_promo/sync_promo_ui.h b/chrome/browser/ui/webui/sync_promo/sync_promo_ui.h
index decb4024d08959b7652dc035ca877e5396ae05d3..3232d8c48137ba48e8b2c69ec1183ad6cb6cf879 100644
--- a/chrome/browser/ui/webui/sync_promo/sync_promo_ui.h
+++ b/chrome/browser/ui/webui/sync_promo/sync_promo_ui.h
@@ -79,6 +79,8 @@ class SyncPromoUI : public content::WebUIController {
   // Forces UseWebBasedSigninFlow() to return true when set; used in tests only.
   static void ForceWebBasedSigninFlowForTesting(bool force);
 
+  static bool IsWebBasedSigninFlowURL(const GURL& url);

[Charlie Reis, 2013/02/28 19:19:46]

Can you document this?

[tim (not reviewing), 2013/03/01 01:53:57]

Done.

+
  private:
   DISALLOW_COPY_AND_ASSIGN(SyncPromoUI);
 };