Support setting mouse cursor icon in Android N.

content/shell/android/javatests/src/org/chromium/content_shell_apk/ContentShellActivityTestRule.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.content_shell_apk;
 
 import static org.chromium.base.test.util.ScalableTimeout.scaleTimeout;
 
 import android.app.Instrumentation;
 import android.content.Intent;
 import android.support.test.InstrumentationRegistry;
 import android.support.test.rule.ActivityTestRule;
 
 import org.junit.Assert;
 
 import org.chromium.base.test.util.CallbackHelper;
 import org.chromium.content.browser.ContentView;
 import org.chromium.content.browser.ContentViewCore;
 import org.chromium.content.browser.test.util.TestCallbackHelperContainer;
 import org.chromium.content_public.browser.LoadUrlParams;
 import org.chromium.content_public.browser.NavigationController;
 import org.chromium.content_public.browser.WebContents;
 import org.chromium.content_shell.Shell;
+import org.chromium.content_shell.ShellViewAndroidDelegate.OnCursorUpdateHelper;
 import org.chromium.content_shell_apk.ContentShellTestCommon.TestCommonCallback;
 
 import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 import java.util.concurrent.ExecutionException;
 
 /**
  * ActivityTestRule for ContentShellActivity.
@@ skipping 35 matching lines @@
      * Starts the content shell activity with the provided test url.
      * The url is synchronously loaded.
      * @param url Test url to load.
      */
     public ContentShellActivity launchContentShellWithUrlSync(String url) {
         Assert.assertFalse(mLaunchActivity);
         return mDelegate.launchContentShellWithUrlSync(url);
     }
 
     /**
+     * Returns the OnCursorUpdateHelper.
+     */
+    public OnCursorUpdateHelper getOnCursorUpdateHelper() throws ExecutionException {
+        return mDelegate.getOnCursorUpdateHelper();
+    }
+
+    /**
      * Returns the current ContentViewCore or null if there is no ContentView.
      */
     public ContentViewCore getContentViewCore() {
         return mDelegate.getContentViewCore();
     }
 
     /**
      * Returns the WebContents of this Shell.
      */
     public WebContents getWebContents() {
@@ skipping 106 matching lines @@
     @Override
     public void waitForActiveShellToBeDoneLoadingForTestCommon() {
         waitForActiveShellToBeDoneLoading();
     }
 
     @Override
     public ContentShellActivity launchContentShellWithUrlForTestCommon(String url) {
         return launchContentShellWithUrl(url);
     }
 }