Pass "total" to IS_READY_TO_PAY service.

chrome/android/java/src/org/chromium/chrome/browser/payments/PaymentApp.java

Index: chrome/android/java/src/org/chromium/chrome/browser/payments/PaymentApp.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/payments/PaymentApp.java b/chrome/android/java/src/org/chromium/chrome/browser/payments/PaymentApp.java
index f18b90fab1d89ba45f79a342cc4fa3892d5d22ee..8f729cf3f411b459fd0a2e7fadb0e300f22ae91e 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/payments/PaymentApp.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/payments/PaymentApp.java
@@ -4,6 +4,7 @@
 
 package org.chromium.chrome.browser.payments;
 
+import org.chromium.payments.mojom.PaymentItem;
 import org.chromium.payments.mojom.PaymentMethodData;
 
 import java.util.List;
@@ -43,10 +44,13 @@ public interface PaymentApp {
      *                         if PaymentRequest was not invoked from inside an iframe.
      * @param certificateChain The site certificate chain of the merchant. Null for localhost and
      *                         file on disk, which are secure origins without SSL.
+     * @param total            The total amount that can be used to filter out instruments with
+     *                         insufficient funds.
      * @param callback         The object that will receive the list of instruments.
      */
     void getInstruments(Map<String, PaymentMethodData> methodDataMap, String origin,
-            String iframeOrigin, @Nullable byte[][] certificateChain, InstrumentsCallback callback);
+            String iframeOrigin, @Nullable byte[][] certificateChain, PaymentItem total,
+            InstrumentsCallback callback);
 
     /**
      * Returns a list of all payment method names that this app supports. For example, ["visa",