PaymentHandler: Implement requestPermission().

third_party/WebKit/Source/modules/payments/PaymentManager.h

Index: third_party/WebKit/Source/modules/payments/PaymentManager.h
diff --git a/third_party/WebKit/Source/modules/payments/PaymentManager.h b/third_party/WebKit/Source/modules/payments/PaymentManager.h
index 1b32bb3cb819445273022e90d1478374f9e1e4fd..62c00624b0263e8dbf82b2c6c51a713a11b54475 100644
--- a/third_party/WebKit/Source/modules/payments/PaymentManager.h
+++ b/third_party/WebKit/Source/modules/payments/PaymentManager.h
@@ -10,10 +10,12 @@
 #include "platform/bindings/ScriptWrappable.h"
 #include "platform/heap/Handle.h"
 #include "public/platform/modules/payments/payment_app.mojom-blink.h"
+#include "public/platform/modules/permissions/permission.mojom-blink.h"
 
 namespace blink {
 
 class PaymentInstruments;
+class ScriptPromiseResolver;
 class ServiceWorkerRegistration;
 
 class MODULES_EXPORT PaymentManager final
@@ -26,16 +28,23 @@ class MODULES_EXPORT PaymentManager final
   static PaymentManager* Create(ServiceWorkerRegistration*);
 
   PaymentInstruments* instruments();
+  ScriptPromise requestPermission(ScriptState*);
 
   DECLARE_TRACE();
 
  private:
   explicit PaymentManager(ServiceWorkerRegistration*);
 
+  // For PaymentManager service

[please use gerrit instead, 2017/06/20 13:28:09]

Should this comment be for the next method?

[zino, 2017/06/22 17:26:47]

Done.

   void OnServiceConnectionError();
 
+  void OnPermissionRequestComplete(ScriptPromiseResolver*,
+                                   mojom::blink::PermissionStatus);
+  void OnPermissionServiceConnectionError();
+
   Member<ServiceWorkerRegistration> registration_;
   payments::mojom::blink::PaymentManagerPtr manager_;
+  mojom::blink::PermissionServicePtr permission_service_;
   Member<PaymentInstruments> instruments_;
 };