[Web Payments] Add Spinners and timeout while waiting for UpdateWith

components/payments/content/payment_request.h

Index: components/payments/content/payment_request.h
diff --git a/components/payments/content/payment_request.h b/components/payments/content/payment_request.h
index ad2abed152af61c4dc94ff5cb9f5cb6bb1291d13..2fddd4f3b9c5e0d81780823c18aca373a3ed806e 100644
--- a/components/payments/content/payment_request.h
+++ b/components/payments/content/payment_request.h
@@ -9,6 +9,7 @@
 #include <vector>
 
 #include "base/macros.h"
+#include "base/timer/timer.h"
 #include "components/payments/content/payment_request.mojom.h"
 #include "components/payments/content/payment_request_spec.h"
 #include "components/payments/content/payment_request_state.h"
@@ -89,6 +90,8 @@ class PaymentRequest : public mojom::PaymentRequest,
   PaymentRequestState* state() { return state_.get(); }
 
  private:
+  void StartWaitTimeout();
+
   content::WebContents* web_contents_;
   std::unique_ptr<PaymentRequestDelegate> delegate_;
   // |manager_| owns this PaymentRequest.
@@ -102,6 +105,8 @@ class PaymentRequest : public mojom::PaymentRequest,
   // May be null, must outlive this object.
   ObserverForTest* observer_for_testing_;
 
+  base::OneShotTimer wait_timer_;

[please use gerrit instead, 2017/04/11 19:15:09]

Not necessary. There's already a timer in Blink:

https://cs.chromium.org/chromium/src/third_party/WebKit/Source/modules/paymen...

[anthonyvd, 2017/04/13 14:56:22]

Ah! Thanks :)

+
   DISALLOW_COPY_AND_ASSIGN(PaymentRequest);
 };