Add ChromeTabbedActivityTestRules for JUnit4 instrumentation tests

chrome/test/android/javatests/src/org/chromium/chrome/test/ChromeTabbedActivityTestRule.java

Index: chrome/test/android/javatests/src/org/chromium/chrome/test/ChromeTabbedActivityTestRule.java
diff --git a/chrome/test/android/javatests/src/org/chromium/chrome/test/ChromeTabbedActivityTestRule.java b/chrome/test/android/javatests/src/org/chromium/chrome/test/ChromeTabbedActivityTestRule.java
new file mode 100644
index 0000000000000000000000000000000000000000..6fd8809f7a7b1be7c9de21f5738882ba98b15dca
--- /dev/null
+++ b/chrome/test/android/javatests/src/org/chromium/chrome/test/ChromeTabbedActivityTestRule.java
@@ -0,0 +1,47 @@
+// Copyright 2017 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.test;
+
+import android.view.View;
+
+import org.chromium.chrome.browser.ChromeTabbedActivity;
+import org.chromium.chrome.test.ChromeTabbedActivityTestCommon.ChromeTabbedActivityTestCommonCallback;
+
+/** Custom ActivityTestRule for test using ChromeTabbedActivity */
+public class ChromeTabbedActivityTestRule extends ChromeActivityTestRule<ChromeTabbedActivity>
+        implements ChromeTabbedActivityTestCommonCallback {
+    private final ChromeTabbedActivityTestCommon mTestCommon;
+
+    public ChromeTabbedActivityTestRule() {
+        super(ChromeTabbedActivity.class);
+        mTestCommon = new ChromeTabbedActivityTestCommon(this);
+    }
+
+    /**
+     * Load a url in multiple new tabs in parallel. Each {@link Tab} will pretend to be
+     * created from a link.
+     *
+     * @param url The url of the page to load.
+     * @param numTabs The number of tabs to open.
+     */
+    public void loadUrlInManyNewTabs(final String url, final int numTabs)
+            throws InterruptedException {
+        mTestCommon.loadUrlInManyNewTabs(url, numTabs);
+    }
+
+    /**
+     * Long presses the view, selects an item from the context menu, and
+     * asserts that a new tab is opened and is incognito if expectIncognito is true.
+     * @param view The View to long press.
+     * @param contextMenuItemId The context menu item to select on the view.
+     * @param expectIncognito Whether the opened tab is expected to be incognito.
+     * @param expectedUrl The expected url for the new tab.
+     */
+    public void invokeContextMenuAndOpenInANewTab(View view, int contextMenuItemId,
+            boolean expectIncognito, final String expectedUrl) throws InterruptedException {
+        mTestCommon.invokeContextMenuAndOpenInANewTab(
+                view, contextMenuItemId, expectIncognito, expectedUrl);
+    }
+}