Add support for Android spellcheck menu in Chrome/WebViews

chrome/android/javatests/src/org/chromium/chrome/browser/input/TextSuggestionMenuTest.java

+// 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.browser.input;
+
+import android.support.test.filters.LargeTest;
+import android.view.View;
+
+import org.junit.Assert;
+
+import org.chromium.chrome.browser.ChromeActivity;
+import org.chromium.chrome.test.ChromeActivityTestCaseBase;
+import org.chromium.content.R;
+import org.chromium.content.browser.ContentViewCore;
+import org.chromium.content.browser.test.util.DOMUtils;
+import org.chromium.content.browser.test.util.TouchCommon;
+
+import java.util.concurrent.TimeoutException;
+
+/**
+ * Integration tests for the text suggestion menu.
+ */
+public class TextSuggestionMenuTest extends ChromeActivityTestCaseBase<ChromeActivity> {
+    private static final String URL =
+            "data:text/html, <div contenteditable id=\"div\">iuvwneaoanls</div>";
+
+    public TextSuggestionMenuTest() {
+        super(ChromeActivity.class);
+    }
+
+    @Override
+    public void startMainActivity() throws InterruptedException {
+        startMainActivityOnBlankPage();
+    }
+
+    @LargeTest
+    public void testDeleteMisspelledWord() throws InterruptedException, TimeoutException {
+        loadUrl(URL);
+        final ContentViewCore cvc = getActivity().getActivityTab().getContentViewCore();
+        DOMUtils.focusNode(cvc.getWebContents(), "div");
+        DOMUtils.clickNode(cvc, "div");
+        Thread.sleep(1000);

[Theresa, 2017/07/20 00:50:33]

I just noticed this test file (sorry!). What is the Thread.sleep() for? Ideally
we would wait for a callback, or, if a specific callback isn't available, we
would wait for some criteria to be met. Checkout CallbackHelper and
CriteriaHelper.

[rlanday, 2017/07/20 01:39:20]

This is to wait for the popup menu to show (there's a 300ms delay). There's no
callback we can use but using CriteriaHelper to wait for
getSuggestionsPopupWindowForTesting() to be non-null works.

[rlanday, 2017/07/20 01:39:20]

This is to wait for the popup menu to show (there's a 300ms delay). There's no
callback we can use but using CriteriaHelper to wait for
getSuggestionsPopupWindowForTesting() to be non-null works.

+
+        View view = cvc.getTextSuggestionHostForTesting()
+                            .getSuggestionsPopupWindowForTesting()
+                            .getContentViewForTesting();
+        TouchCommon.singleClickView(view.findViewById(R.id.deleteButton));
+        Assert.assertEquals("", DOMUtils.getNodeContents(cvc.getWebContents(), "div"));
+    }
+}