[Payments] Present web payment app instead of instruments to user

content/browser/payments/payment_app_info_fetcher.cc

Index: content/browser/payments/payment_app_info_fetcher.cc
diff --git a/content/browser/payments/payment_app_info_fetcher.cc b/content/browser/payments/payment_app_info_fetcher.cc
index f4d68e87d696e6587138409d3daf4b4ec1f5939c..cc232764fd1ad97aaf2191128b1d6ccb80bc732e 100644
--- a/content/browser/payments/payment_app_info_fetcher.cc
+++ b/content/browser/payments/payment_app_info_fetcher.cc
@@ -20,7 +20,9 @@ namespace {
 
 // TODO(gogerald): Choose appropriate icon size dynamically on different
 // platforms.
-const int kPaymentAppIdealIconSize = 64;
+// Here we choose a large ideal icon size to be big enough for all platforms.
+// Note that we only scale down for this icon size but not scale up.
+const int kPaymentAppIdealIconSize = 0xFFFF;
 const int kPaymentAppMinimumIconSize = 0;
 
 }  // namespace