Add 'total' field to 'PaymentDetails'.

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

Index: chrome/android/java/src/org/chromium/chrome/browser/payments/ui/ShoppingCart.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/ShoppingCart.java b/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/ShoppingCart.java
new file mode 100644
index 0000000000000000000000000000000000000000..f3ef53909cb227dea15111688ef19e3f1aad4eb8
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/ShoppingCart.java
@@ -0,0 +1,62 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.chrome.browser.payments.ui;
+
+import java.util.List;
+
+/**
+ * The shopping cart contents and total.
+ */
+public class ShoppingCart {
+    private LineItem mTotal;
+    private List<LineItem> mContents;
+
+    /**
+     * Builds the shopping cart UI data model.
+     *
+     * @param totalPrice The total price.
+     * @param contents The shopping cart contents. The breakdown of the total price. OK to be null.
+     */
+    public ShoppingCart(LineItem totalPrice, List<LineItem> contents) {
+        mTotal = totalPrice;
+        mContents = contents;
+    }
+
+    /**
+     * Returns the total price.
+     *
+     * @return The total price.
+     */
+    public LineItem getTotal() {
+        return mTotal;
+    }
+
+    /**
+     * Updates the total price.
+     *
+     * @param total The total price.
+     */
+    public void setTotal(LineItem total) {
+        mTotal = total;
+    }
+
+    /**
+     * Returns the shopping cart items.
+     *
+     * @return The shopping cart items. Can be null.
+     */
+    public List<LineItem> getContents() {
+        return mContents;
+    }
+
+    /**
+     * Updates the shopping cart items.
+     *
+     * @param contents The shopping cart items. Can be null.
+     */
+    public void setContents(List<LineItem> contents) {
+        mContents = contents;
+    }
+}