Autofill address editor in PaymentRequest UI.

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

Index: chrome/android/java/src/org/chromium/chrome/browser/payments/EditorBase.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/payments/EditorBase.java b/chrome/android/java/src/org/chromium/chrome/browser/payments/EditorBase.java
new file mode 100644
index 0000000000000000000000000000000000000000..868aff044b1da1e5f6423145657486fd775d685e
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/payments/EditorBase.java
@@ -0,0 +1,46 @@
+// 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;
+
+import android.content.Context;
+
+import org.chromium.base.Callback;
+import org.chromium.chrome.browser.payments.ui.EditorView;
+import org.chromium.chrome.browser.payments.ui.PaymentOption;
+
+import javax.annotation.Nullable;
+
+/**
+ * The base class for an editor controller.
+ */
+abstract class EditorBase<T extends PaymentOption> {
+    @Nullable protected EditorView mEditorView;
+    @Nullable protected Context mContext;
+
+    /**
+     * Sets the user interface to be used for editing contact information.
+     *
+     * @param editorView The user interface to be used.
+     */
+    public void setEditorView(EditorView editorView) {
+        assert editorView != null;
+        mEditorView = editorView;
+        mContext = mEditorView.getContext();
+    }
+
+    /**
+     * Shows the user interface for editing the given information.
+     *
+     * @param toEdit   The information to edit. Can be null if the user is adding new information
+     *                 instead of editing an existing one.
+     * @param callback The callback to invoke with the complete and valid information. Can be
+     *                 invoked with null if the user clicked Cancel.
+     */
+    protected void edit(@Nullable T toEdit, Callback<T> callback) {
+        assert callback != null;
+        assert mEditorView != null;
+        assert mContext != null;
+    }
+}