PaymentRequest: complete() method should take PaymentComplete enum value.

chrome/android/java/src/org/chromium/chrome/browser/payments/ui/PaymentResultUIManager.java

Index: chrome/android/java/src/org/chromium/chrome/browser/payments/ui/PaymentResultUIManager.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/PaymentResultUIManager.java b/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/PaymentResultUIManager.java
index ebb171dbc3a5bad56937078755d84acf1325447c..2ec9a117a13325ff3df17b4d340749c1d37c981c 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/PaymentResultUIManager.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/PaymentResultUIManager.java
@@ -63,12 +63,15 @@ public class PaymentResultUIManager {
     /**
      * Updates the UI to display whether or not the payment request was successful.
      *
-     * @param paymentSuccess Whether or not the payment request was successful.
-     * @param callback       Callback to run upon dismissal.
+     * @param shouldCloseImmediately If true, this function will immediately dismiss the dialog
+     *        without describing the error.
+     * @param callback Callback to run upon dismissal.
      */
-    public void update(boolean paymentSuccess, final Runnable callback) {
-        if (mResultLayout.getParent() == null || paymentSuccess) {
-            // Dismiss the dialog immediately.
+    public void update(boolean shouldCloseImmediately, final Runnable callback) {
+        if (mResultLayout.getParent() == null || shouldCloseImmediately) {
+            // The shouldCloseImmediately boolean is true when the merchant calls
+            // instrumentResponse.complete("success") or instrumentResponse.complete("")
+            // in JavaScript.
             callback.run();
         } else {
             // Describe the error.