[PaymentApp] label field was changed to name field in PaymentAppOption.

content/browser/payments/payment_app.proto

Index: content/browser/payments/payment_app.proto
diff --git a/content/browser/payments/payment_app.proto b/content/browser/payments/payment_app.proto
index 3c740884c0ab2cec002aea0968963107d26b194a..df8a8c2a12073fdb07253eb96ff4644fc970ef5e 100644
--- a/content/browser/payments/payment_app.proto
+++ b/content/browser/payments/payment_app.proto
@@ -9,14 +9,14 @@ option optimize_for = LITE_RUNTIME;
 package content;
 
 message PaymentAppManifestProto {
-  required string label = 1;
+  optional string name = 1;
   optional string icon = 2;
   repeated PaymentAppOptionProto options = 3;
 }
 
 message PaymentAppOptionProto {
-  required string label = 1;
+  optional string name = 1;
   optional string icon = 2;
-  required string id = 3;
+  optional string id = 3;
   repeated string enabled_methods = 4;
 }